m involves the use of tables. It is how the Derive software built into the TI-92 and TI-89 works. It basically takes an input, matches the pattern with a database of tables, for example, an integral table. Then, it takes that pattern that most closely matches the input, and fills in the blanks. Works quite well, actually. Indeed, I hope the new HP has this enhanced pattern matching capability as far as integration goes. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:85985 ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:85986 begin 666 Catd.dat ---------------------------------------------------------------------- civan@eskimo.com (Chuck Dinsmore) wrote: JYA says Right! -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- ---------------------------------------------------------------------- also Sparcom Mathematics (PN 10071-1A) and Calculus Pacs (PN 10111-1A). both are in new condition in the boxes with manuals. best serious offers considered for one, both or entire package. Calculus Pac PN 10111-1A This pac is a collection of tools and equations that will significantly extend the calculus capabilities of the HP 48SX and HP 48GX. Access the function library for curve fitting routines and root-finding. Integrate by left, right, and midpoint rectangles, trapezoids, and Simpson's rule. Access integral tables, plus add your own. Graphics include 2D and 3D, including hidden-line removal. Symbolic vector and differential equation solving. Features: •Function Library •Integration Analysis •Plotting Tool kit •Vector Tool kit •Integral tables •Limit Analysis •Reference Data •Constant Library Function Library •Fit one point/slope •Fit two point/slope •Fit many points •Piecewise functions •Build polynomial form roots •Find roots of polynomial •Taylor expansion calculation Integration Analysis •Left rectangles •Right rectangles •Midpoint rectangles •Trapezoidal rule •Simpson's rule Solve and plot differential equations using the following methods: •Euler's method •Modified Euler's method •Runge-Kutta method •Slope Field The plotting Tool kit contains commands oriented at enhancing the graphics capabilities of the HP 48SX. 2-D Graphics features include a trace function. 3-D Graphics features include plotting of parametric curves and surfaces along with hidden-line removal. Now Symbolic Vectors are supported by the Calculus Pac! Access over twenty-five programmable commands. ---------------------------------------------------------------------- NNTP-Posting-Date: Thu, 04 Mar 1999 18:38:00 EDT Date: Thu, 04 Mar 1999 18:35:03 -0500 Xref: ionews.ionet.net comp.sys.hp48:85994 Hi, I have a HP48GX that is new and I have a need to copy all the data from 1 128K mem card to a blank 128K mem card. Does anyone know the exact key sequence ? Rick ---------------------------------------------------------------------- first scientific calculator. Please point your browser to http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=74211417 Thanks. ---------------------------------------------------------------------- whoops, that's the wrong equation. I meant. x^2 (1 + 2x^2)(e^ ) ---------------------------------------------------------------------- The only thing you have to do is get the 48GX ROM image because it is not shareware or freeware. There are directions to help you get the ROM image off of a 48. ---------------------------------------------------------------------- myself. Thanks. Jeremy ---------------------------------------------------------------------- X-Complaints-To: abuse@ujf-grenoble.fr NNTP-Posting-Date: 5 Mar 1999 12:40:13 GMT X-Mailer: Mozilla 4.5 [en] (X11; I; Linux 2.0.34 i586) X-Accept-Language: en Xref: ionews.ionet.net comp.sys.hp48:86008 Jemfinch02 wrote: The FACTORIAL command does the job. ---------------------------------------------------------------------- ---------------------------------------------------------------------- The new HP Jornada 420 is the first Windows CE palm-size PC to incorporate an easy-to-read, rich-color display. The brilliant, 256 color, 240 x 320 pixel screen improves readability dramatically over previous monochrome models. And this... We were impressed with the clarity, sharpness and brightness of the Jornada 420's DSTN (Double Super Twisted Nematic) screen, which outshone the FreeStyle 540's reflective thin-film transistor screen indoors, although both units were quite readable in bright sunlight. I know that some of you are pretty scared of battery life in the future new HP calculator if a color screen is included, but let me tell you that I'd be more than delighted in using a ton of batteries in order to have a full-color-screen calculator. An guess what? HP has the technology to do that TODAY! Hey you, ACO guys, would you mind to include that in the HP58 features? I PAY THE BATTERIES!!! - Roberto Perez-Franco icq# 14607303 -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Xref: ionews.ionet.net comp.sys.hp48:86175 Crazy... i use calculators for science and engineering, not childish entertainment, and would hate battery life affected by useless color gimmicks ---------------------------------------------------------------------- Do you know something? I also use calculators for science and engineering. In my whole life I've never played a single game in my HP and in fact I never will. I also use paper and pencils for science and engineering. I am the best student in my class. And I use color pencils in my calculations. Why? Because color is a GUIDE. It guides the eye and the mind through the whole mess of numbers and formulas. In my paper, I use one color for formulas, another for given data, another for obtained data. And although my tests look as colorful as the notebook of a 5 years old child, my grades are the very best. I think that color is useful in science and engineering, my friend... and if it works in a notebook and a sheet of paper, it will work in a calculator. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Sorry I can't help it. The fact that you use colored pencils doesn't mean that that is the reason for your excellent performance in class. Perhaps your excellent performance occurs in spite of your use of colored pencils! Lance Because for colorful if ---------------------------------------------------------------------- for your excellent performance in class. Ok, I have to recognize that I practice a lot and pay attention to my teacher. ;o) Hehehe! My grades didn't come inside the color pencil's box! But those pencils helped me finish my problems faster. pencils! I think that the facts are related. I've made color pencils a part of my tool kits to make tests and practices in my EE major since the day I discovered that those colours guided my eyes through the drawings faster and safer. For example, I colour nodes and branches in all circuits. My Hyatt book is fullfilled with colors! Also my tests are pretty colorful... and teachers like them (for they usually have the right answers ;o). Now, with colors I am more confident. °°°°[Do wnExclamation][DownExclamation][DownExclamation][DownExclamation][DownExc lamation][DownExclamation][DownExclamation][DownExclamation][DownExclamat ion][DownExclamation][DownExclamation][DownExclamation][DownExclamation] [DownExclamation][DownExclamation][DownExclamation] My point? Colors may be a serious tool to high performance engineering, math and science students. Let these colors be pencils or pixels. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Hello! I agree 100% with you, and imagine the new features and programs we can make and improve with a color LCD. If black and white was best surely we didnt have the flat and squares CRT tubes we have today. To have color movies instead of B&W was a great step... and the same happened with tv. If someone like back and white nothing I can do because I can't discuss about that person likes. If I like colors nothing you can do becouse it is that I like. But it is clear that a color LCD can plot 3 functions and it is easy to show the plots. Imagine the plots of y=sin(x) y=cos(x) and y=cos(x+30) ploted simultaneously, for example. In this case we need consider the technical reasons of a color LCD and in this case a color LCD can open a new horizon for new features in games, math and ploth programs. This is because I think a color LCD is best. Carlos Marangon HP48 for beginners! http://www.geocities.com/~hpfb -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- -------------------------:: o black and white allows the display to define information on the screen at a 2 'dimensional' level... colour adds more dimensions to that display... it's quite sad that your brain is apparently unable to absort information at a faster rate than that provided by a 2 colour screen. and also, while i'm ranting a bit... you know what really bugs me...!!! books, specifically technical books that think that Pictures are going to DEMINISH the quality of their dang book...!!!...that pictures are for children, ( or that Colour is for children ) and that REAL MEN, or REAL SCIENTISTS should be satisfied with reading densely packed pages and pages of obscure text with nary a carriage return, comma, or italics to be seen... when all the while, very complex and INTERESTING ideas may be expounded upon quite elegantly with a single well crafted illustration...!!! i don't buy books without pictures...and i perfer pictures in colour. my brain can quite easily absorb all the extra information that the colour is defining. (!) ----------- :: o .---..-..-..-..-..-..-. . .-. .-. .-..-..-.. .-. `-' `-'`-'`-' `-' `. ^ .' `--^--'`-'`-'`-'' `--^--' Thinking Is The Enemy; Dada Your Way To Happiness! ---------------------------------------------------------------------- NNTP-Posting-Host: 209.32.178.166 X-Trace: rsnws01.mn.mediaone.net 921031680 209.32.178.166 (Tue, 09 Mar 1999 21:08:00 EDT) NNTP-Posting-Date: Tue, 09 Mar 1999 21:08:00 EDT Xref: ionews.ionet.net comp.sys.hp48:86195 hey now, no picking on the obviously Pol. Sci. Major ;) Any real Science/Math/Logic/Computer major would have immediatley seen the fault in the supposed causality relationship between the colored pencils and grades. :) /Nosferatu Lance Lachenicht wrote: ---------------------------------------------------------------------- go@flyakite.com wrote: ;oD Hehehe! Sure! Actually, color pencils are gaining acceptance now in my classroom! -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-MimeOLE: Produced By Microsoft MimeOLE V4.71.1712.3 Xref: ionews.ionet.net comp.sys.hp48:86020 If the new HP58 (I want one, I want one!) would have a colour display, it would be good. About battery life, an AC connecting would solve a lot. I think most people use theirs at a place where AC is available, anyway. Maybe it could be fitted with an Lithium Ion battery, such as the ones in the better mobile phones, thus re-chargeable. Additional batteries can be bought to cater for different users. I have 3 batteries for my mobile, tiny ones for an Ericsson GF788. They are about 4 cm by 3 cm. I'm sure the geniuses at HP (or whatever the calculators are going to be called) can incorporate such a feature. I wouldn't even mind if the whole thing became a little bigger, or heavier. People now say the HP48 is too big, but users don't care. Maybe HP should consider bringing out 2 new types, one lean mean calculator only, and one model with all calculator functions, but also incorporating other options, such as easier text input, database program, not to mention games! I know this wouldn't be acceptable for students, but I managed to pass college with my trusty compatriot the HP48GX. I for one would be interested to purchase a PDA/calculator machine. Regards, Bart van der Plas ---------------------------------------------------------------------- like a damn photograph...better than colour television...! i was however VERY VERY VERY annoyed that they were using MicroSoft Software to operate it...!!! and that it was something like 540$ (???) to get around the battery sucking problem...which the tag next to the picture mentioned, it uses a plug Should the new name in Level 2 be enclosed in double quotes? Should each of the variables in the list of variables in Level 1 be enclosed in double quotes as well? Any other ideas about what I may be missing? Where to Get the HP48 FAQ ========================= This document briefly describes where to get the latest version of the comp.sys.hp48 FAQ. The main site is: http://www.engr.uvic.ca/~aschoorl/faq/ All formats of the FAQ are available at the above link, including the text, PostScript, HTML, and SGML versions. Text Postings ============= Text only versions of the FAQ will be posted to the newsgroup comp.sys.hp48 and comp.sources.hp48 as needed (usually every two weeks). Also, remember that all official FAQs (including this one) are mirrored at rtfm.mit.edu. Specifically, this one is at: ftp://rtfm.mit.edu/pub/usenet-by-group/comp.sys.hp48/ Furthermore, the text FAQ is posted to comp.answers and news.answers. I will sign all text versions with PGP (Pretty Good Privacy) using the following key for authenticity, and provide MD5 Checksums for the remaining files. You can get a copy of this public key through the URL above. Type Bits KeyID Created Expires Algorithm Use sec+ 1024 2CFAA0BB 1997-06-21 ---------- DSS Sign and Encrypt sub 2048 F940E148 1997-06-21 ---------- Diffie-Hellman Alternate Sites =============== Alternatively, you can download the FAQ at one the following locations: North America: -------------- Latest: http://www.hpcalc.org/docs/faq/ Older: ftp://ftp.hp.com/pub/calculators/hp48g/docs/ Europe: ------- Latest: ftp://ftp.stud.fh-heilbronn.de/pub/systems/hp48/incoming/ Older: ftp://ftp.stud.fh-heilbronn.de/pub/systems/hp48/info/FAQ/ Translations: ------------- Espanol (Spanish): http://www.alumnos.utfsm.cl/~aarrieta/hp48.html Portugues (Portugese): http://members.tripod.com/~area48/ Contacting Me ============= I rely on your input in order to keep this FAQ up to date. If you have any suggestions or updates, feel free to mail them to me. My current address is: aschoorl@engr.uvic.ca If you're using a web enabled news reader, you can click here: mailto:aschoorl@engr.uvic.ca Please do not mail the webmaster at my site, it's not me. Thank you. -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use Charset: noconv iQA/AwUBNoqLNehzXOws+qC7EQJ4OACg/0aYBeXvteh7Hq8h9NRm8ttKPbgAoKSH 8ZbNg6DFVr1Hbn+R5ZoQ5AQs =Ss4t -----END PGP SIGNATURE----- -- Comp Engineering, UVic, Canada Linux/HP48 http://www.engr.uvic.ca/~aschoorl/ The 32SII's retail price in 1991 was $70. Educalc currently sells them for $60. Though that might seem high, it's an excellent calculator for the price. High-powered, feature-packed, yet very small. The 32 series is simpl in modual (?) that you keep it in at night, that recharges it...which sounds very reasonable... while its sitting there, it could display the time, or tie into the internet ( my speculations ) and display all sorts of things...??? or maybe you could ( of course ) install a sci-calculator program and make the Jordona the new '58'... the colour though...is fabulous...256 colours is ( when well chosen ) are all the colours the human eye can reasonably discern, you use the million colours tables to pick the ideal 256 colours for any given picture. ) ----------- :: o .---..-..-..-..-..-..-. . .-. .-. .-..-..-.. .-. `-' `-'`-'`-' `-' `. ^ .' `--^--'`-'`-'`-'' `--^--' Thinking Is The Enemy; Dada Your Way To Happiness! ---------------------------------------------------------------------- Hello!http://www.hp-shop.de/hp/gratis.asp?mscssid=169199 Can any friend from Germany explain me the text of this page ? It talks about a new solar HP6s calculator. not 100% efficient Carlos Marangon HP48 for beginners! http://www.geocities.com/~hpfb http://members.xoom.com/hp48fb (mirror) -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- perhaps not the finest style, but The HP6S / HP6S Solar For smart people: The intelligent (solar powered) calculator with fractions calculation The HP6S and the HP6S Solar are two new scientific calculators from Hewlett-Packard, which are used by pupils in math classes, but also assist adults who are concerned in scientific calculations. The HP6S is available in two different models: battery-powered (the blue one) or solar- and battery-powered (the silver one). One of both is free with every order you'll do during the CeBit fair ! Bye ---------------------------------------------------------------------- Cache-Post-Path: muck.dcs.ed.ac.uk!tfb@tardis.tardis.ed.ac.uk X-Cache: nntpcache 2.3.3 (see http://www.nntpcache.org/) Xref: ionews.ionet.net comp.sys.hp48:86074 tinywanda@aol.com.ReMvThs (TinyWanda) writes: Rubbish. 256 colours is totally inadequate. 256 *grey levels* is totally inadequate. Go and look at a decent photograph some time, especially something taken with a medium-format camara. 256 colours from a large palette is adequate for a calculator though, I should think (:-). --tim ---------------------------------------------------------------------- I think what he meant is that it is great if you can pick the best 256 for any picture, which you can. However, more colors will always look better for more pictures at once. ---------------------------------------------------------------------- X-MimeOLE: Produced By Microsoft MimeOLE V4.71.1712.3 Xref: ionews.ionet.net comp.sys.hp48:86077 Glad to see there is so much response to the colour items. However, I am sure that for a scientific calculator maybe even 4 colours would be enough. I don't want my integrals to come up in 16 million colours. It takes long enough to compute now, let alone then. If HP would manage it though, maybe a bundled copy of PhotoShop would be nice... Maybe even a full version of AutoCAD too? All joking aside, I haven't really read anything on my PDA/calculator idea. One base calc only model, one combined one. HP58 and HP58PDA? Regards, Bart van der Plas ---------------------------------------------------------------------- What is PDA, Bart? -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-MimeOLE: Produced By Microsoft MimeOLE V4.71.1712.3 Xref: ionews.ionet.net comp.sys.hp48:86166 Perez-Franco wrote in message What is PDA, Bart? Sorry, some advertising slogan I picked up somewhere. Personal Digital Assistant. I meant to imply that I would be interested in buying a HP, with all the calc features, and features such as US Robotics Palm Pilot, or Philips Nino. Regards, Bart ---------------------------------------------------------------------- features, and features such as US Robotics Palm Pilot, or Philips Nino. Sounds great! But how much would that cost? -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86049 all colours As a graphics artist and photographer, I disagree strongly. 256 colors isn't even enough to truly represent monochrome images in their full splendor. For color images 65536 colors is a good start, and for high quality, 16 million colors are a neccessity (combined with high resolution and dithering it is enough to fool the eye into true continuous tone (non-dithered 16 million color is pretty smooth tone, but there are some noticable bands) Ken ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86018 If it didn't significantly affect the price, I'd think it was a nice feature, but it's certainly not on the top of my must-have's for a calculator... Ken ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86059 On Fri, 5 Mar 1999 12:27:01 -0500, Ken Alverson It would be nice if you had a choice of re-chargable by the type of calculator that lasts a life-time. -- Brian Stone stone@StoneEntertainment.com ----------------------------------:: o which is still the price of a TI or Casio Graphical Calculator...??? granted, the 32 is a nice calculator, and it arguably built to withstand terrorists better than the 48's, but given it's 200 (?) programming lines, and one line numerical display...60$ just seems a little high when commared to the features and prices of other calculators... it seems to reside off the calculator continuum... such that the continuum that the 32 DOES exist on, is the Jewelry continuum...! ----------- :: o .---..-..-..-..-..-..-. . .-. .-. .-..-..-.. .-. `-' `-'`-'`-' `-' `. ^ .' `--^--'`-'`-'`-'' `--^--' Thinking Is The Enemy; Dada Your Way To Happiness! I was reading the HP48 Insights book today (just got it) and he gave a short history of HP calculators but I don't think the 32 was mentioned. Where does it fit? Barry does it fit? -------------------------------------:: o TinyWanda wrote: o Both are made of similar expensive plastic. o Costs of manufacture and marketing might not be so divergent. o The people who designed them are all on the same pension plan. o If they were cheaper, people might confuse them with TI :) That's nothing... the HP12C business calculator (one of the old-style landscape-shaped LCD models) is still going for $70 in most stores. It doesn't even have a backspace key. Rudimentary: - elimination of already reduced rows and columns by pivotation - balancing of the matrix to hopefully reduce the 1-norm - Householder reduction to upper Hessenberg form, accumulate transformations if eigenvectors requested - for real matrices: double-shifted QR, split of 1X1 or 2x2 diagonal blocks when reduction to quasi-triangular form is finished, determine eigenvalues from 2x2 blocks + corresponding eigenvectors if requested for cplx matrices: single-shifted QR for both: apply givens rotations to eigenvector matrix, if requested - undo balancing and pivoting All input is converted to 15 digit precision, and the output is packed back into 12 digit UserRPL reals, as with most 48G matrix commands. I am writing a much more in-depth document, but examining 20k of undocumented SysRPL that's half full of unsupported entries takes time; the QR-step for now is a (educated) guess, all I know is that the algorithm takes a different approach for real input vs. complex input. Up till now the code resembles LAPACK code very closely, and that would be about as good as it can get. Hi I bought a second hand HP48GX, it did not have a user manual. Does anybody know a contact number for HP in the UK , such that I can order a replacement manual. The algo is in fact a new encryption one, it's much faster than RSA, but I've been told that the data is 8 or 16 times larger... Memory size is also an important issue on the 48. -- Erwann ABALEA eabalea@certplus.com vmhjr@frii.com (Virgil) wrote: ??? Sir, the function has the absolute value as a part of its definition. The function I want to study is this one: neg(abs(X^(-1))) :o) Why should I remove the absolute value? ERABLE does not want to do a series expansion for an absolute value. If the two function coincide in the region of interest and one includes an absolute value, ERABLE can find both limits by looking at the one without the absolute value sign. and sin(x)^2/x^2. Erable can deal with the second but not the first! -- Virgil vmhjr@frii.com vmhjr@frii.com (Virgil) wrote: Forget it. Now it's working perfectly. It was a flag. I don't think so, just type VER to be sure to have all flags to default state (and to be sure to have the latest 3.201 version). I tried it on my x48 emulator at home and I got the correct +infinity as first element of the list at level 2 after the SERIES call. You are right. I setted the flags and it worked fine. Did you check the (+oo)*(-oo) product stuff I told ya? Sir, the function has the absolute value as a part of its definition. The function I want to study is this one: neg(abs(X^(-1))) :o) Why should I remove the absolute value? Bernard, will you answer me someday? look at stolte-edv.com dirk we are developers of the speed up module for the HP48g/g+/gx. greetings from germany Dieter I just purchased a 1MB GRiD card to use in my hp48GX. It works great...so far. However, I am worried about the much talked about clamping that may have the effect of destroying both my hp48GX and the RAM card. Has anyone ever modified their GRiD card so that clamping was disabled? I understand that this has been done on a Smith Corona 32K card. http://www.hpcalc.org/docs/misc/smith.txt I assume that the same modification can be made to a GRiD card? What affects should I be concerned about when this functionality is disabled? Josh Take a look at http://www.isbiel.ch/~sigrm/ -- If you mean to use the IR diodes on the HP48 as a Laser Scanner to read barcodes i must say NO. If you mean you have an external barcode reader and want to connect it to the HP48 then i say YES. (I have done so myself.) I think the only real problem would be that you'd need some kind of collimating device to put over the IR LED/phototransistor pair to read closely-spaced barcodes, as otherwise I doubt the spatial resolution would be veattery pack or non-rechargeable batteries. Similar those used for the HP41 series. ( Not necessarily N cells) Harold A. Climer Lab Instructor Dept.Of Physics & Astronomy U. Tennessee at Chattanooga ---------------------------------------------------------------------- If the new calculator didn't use standard batteries like AAA or AA then I don't think I'd buy one. Barry BATTERIES!!! ---------------------------------------------------------------------- The only way I would not buy the new HP is that it used a nuclear reactor as power source. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- I remember my old Casio CFX (oh sorry but this was my first color calc). The screen was not really readable and It was useless for maths.. excepting for the Plotter. So I can hardly imagine a new model of HP CG(X) based on 4 colors screen. Regards, Julien Meyer ---------------------------------------------------------------------- I had a Casio CFX-9800G and I loved it color display. It was great to plot several functions at once and gived the calc a great look. I think color has a lot of applications in math software. For example, one color for the entry, another for the result. Or one color for variables, other for directories, other for libraries and so on. It is a matter of imagination. And batteries? My CD player eats more and is less usefull. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-Mailer: Mozilla 4.04 [en]C-SYMPA (Win95; I) Xref: ionews.ionet.net comp.sys.hp48:86038 Speaking of batteries, I think the triple A batteries kick ass. I used to own a Casio with lithium batteries and it cost approximately $15 to replace them!!! They didn't last much longer either although that probably has more to do with the excellent power usage of the HP48. I think the HP48 paid itelf off simply in battery usage alone! Steve ---------------------------------------------------------------------- I don't agree with you Steve. When you use your HP at school or during you are working for a week, the batteries will be to change every two week.. and it costs about $6 each time. I remember when I was programming my HP48, then it was every week I needed to change batteries.. everyweek for two years :) And when you use other kind of re-usable (sorry I have not the word..) batteries then it is every 2 to 3 days. I think this is better in TI calculators, but I'm not sure. Regards, Julien Meyer own a them!!! with the in ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86027 other imagination. Like I said, it's useful, but not high on my list of priorities. Speed and erable level (better?) symbolic math capabilities would probably be the most important for me. Ken ---------------------------------------------------------------------- I wouldnt like to see color in the new one if it meant short battery life. But I'd be ok if the life was half what it is now. I change batteries every 3 months although they still have enough life in them at that point to play a some0 tapes in my walkman. Even changing once a month would be ok. Color would be nice but if they don't do color what I'd most like to see is a brighter high contrast screen like the newer TI model's have. Barry ---------------------------------------------------------------------- since till now many claimed a color display: I agree! A new calc should be improved in calculating purposes. I don't agree here. Keep in mind that the HP48 is a calculator! I want to use a calculator everytime and everywhere. My HP32SII runs *forever* on batteries. The HP48SX needed less batteries then the GX and I would like to have an increased battery life!!! Especially the PC-transfer eats up to much batteries :-( Sure! But that shouldn't have a high priority. Much more important are the size, battery life, cost!, ease of reading the display and last not least the capabilities of the calc! (I'm very old fashioned: If I want to play a game I grab my wooden chess board or go out and play Frisbee ;-) A higher contrast screen would be great! If the background would be brighter/lighter (what's the right word here?) that would do the job. In addition the LC (liquid cristals) should be closer to the background to avoid those very annoying shadows when the calc is viewed under a strong directed light (coming from the front and not from the point of view). Just my 0.02 Euro (I try to get used to the new currency ;-) Greetings from Cologne Peter E-Mail: karpfenteich@gmx.de _______________________________ Do you know the great Frequently Asked Questions? http://www.engr.uvic.ca/~aschoorl/faq/ and the superb HP48 Software Archive? http://www.hpcalc.org to look for *old* HP48 postings see http://www.dejanews.com ---------------------------------------------------------------------- Why not having both? -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86003 Could someone explain why my 48GX returns -195948537906 for TAN(pi / 2) and not an Infinite Result error as TAN(90) degrees would? What am I doing wrong here? Thanks in advance, ----------------------------------------------------------------- Isaac Tipton isaac@spamless.shadetreeweb.com remove spamless from address when replying Shadetree Web Design http://www.shadetreeweb.com/ PGP Public Key http://www.shadetreeweb.com/misc/itkey.htm ----------------------------------------------------------------- ---------------------------------------------------------------------- Nothing. The HP48 must convert PI/2 to its numerical value before calculating TAN - and its numerical value is NOT the same as PI/2. -195948537906 is actually the best possible 12-digit value of TAN(1.5707963268). Before you ask why SIN(PI)IS zero, and SIN(3.14159265359) is -2.0676..e-13, that's because SIN(PI) is automatically simplified - I guess the AUR contains a list of all automatic simplifications, and naturally TAN(PI/2) is not included - because it is a little hard to simplify to 'Infinite Result'. Best Regards, Werner Huysegoms Reply-To: werner.huysegoms@dgx11.cec.be remove the x before replying -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Sry good given the beam spread of the IR LED in the HP 48. Once you had that it would be a simple matter of programming. -- comp.sys.hp.mpe:54326 comp.sys.hp48:85672 Is there any way of writing into the text section of an executable on HP ? I am trying to change my executable code while the code is running - and I am getting a bus error - because of access erros ? Does anybody know how to make the text section writeable ? Thanks Pallab P.S. : Please reply directly to my email address The user's manual says to put the command as a string with and a packet type as string wih What are these commands and these packets type ? Aldiney : The user's manual says to put the command as a string with : and a packet type as string wih : What are these commands and these packets type ? Get a good Kermit reference. The one Ive found pretty good is the book by Frank deCruz Kermit: A file Transfer Protocol. There's a table in there that lists all the various forms of the command that Kermit supports. One thing I haven't seen is a list of which of these commands the HP48 supports. -- john R. Latala jrlatala@golden.net John R Latala wrote: If you have Goodies Disk #10, see PACKETS.DOC in the POSTINGS directory for the complete scoop about both HP48 Kermit packets and MS-KERMIT packets. If you don't have GD10, you can find it online here: http://www.dejanews.com/getdoc.xp?AN=109002555 My VT52 Terminal Emulator library also contains a whole variety of commands that use PKT to do useful things like getting directory listings from the remote kermit server, deleting files remotely, changing the working directory, etc. You can download it from: http://www.btinternet.com/~mark.power/hp48.htm You might find the KENCR command useful as it encodes the parameters for most of the PKT commands. Mark. aldiney@my-dejanews.com wrote: Newsgroups: comp.sys.hp48 Subject: Re: how to use the command PKT ? Date: Wed, 24 Feb 1999 16:11:46 +1100 Lines: 40 X-Newsreader: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 NNTP-Posting-Host: hpiw0285.aus.hp.com X-Trace: 24 Feb 1999 06:11:23 +0100, hpiw0285.aus.hp.com X-Disclaimer: All opinions expressed herein are of personal nature and do not reflect the opinion of third parties. 1 10 FOR A A 1 DISP2 NEXT C PKT when you are connected to a 48 in serveur mode -- A+ Cyrille de Brebisson Le Meilleur moment pour planter un arbre etait il y a 20 ans. Le Deuxiemme meilleur moment est maintenant The Best Time to plant a tree was 20 years ago. The second best moment is now. http://www.capway.com/brebisso aldiney@my-dejanews.com wrote in message My HP lose all your memory. This happen all the time when i start to play If anybody can help me, please mail me. Tanks a lot. Carlos A. Bez Birolo If you look at HP48 games collection, you may notice that it's always = the same kind of programmer who is able to write powerfull tools for = your calculator, in assembly for example. Look at the great DoomHP demo: The programmer is programming your next HP Calculator right now! So accept that games on a HP48 is a great thing not only for the fun, = but for the art programming. Could somebody who successfully transfers files between their Mac and HP48GX please take me under their wing? I had a 48GX when they first came out and could send and receive files to/from my Mac. My 48GX was stolen, and I didn't replace it for a while. Now that I have, I can't seem to get file transfers to work any more! Arg! Thanks for all your help! But i need help with the assembly programming. I will only do it* if there are some GOOD programmers willing to refine and improve the o.s., since i'm not able to do that(for now :) ). Send me an e-mail, and if there is a good feedback i'll make a page detailing the process. *Since the eprom costs something in the range 17-30 us dollars. According to the device used, not yet decided. Hm... i want to upgrade my chesna, I have the stearing wheel and a engine of a airbus. Anyone out there with experience with it ? I'm not sure, if you can replace the eprom by a flash, but it sounds possible. My stop signal is the ROM code. What is your aim ? Improve ot replace ? How do you want to improve it ? You must have the source code, but even then it was the hard work of several people over long time to fit in the chip. Cut'n'Paste some blocks off nibbles won't work, 'cause of the absolute adressing ReWrite ? Do a PowerSearch in DejaNews (www.dejanews.com) for Jean-Yves Avenard comments on the MetaKernel project. Looong work. And as he said in a posting some time ago, no one would do the job now again. Too much work. maybe i am totally wrong Jens I mean setting the processor in tristate, using a register or a pin? I know that the rom's oe pin is hardwired to ground but that is not a problem. thanks Steve variables, and Global variable names and how to makes INFORM inputs in sys -RPL? Thank you SYSRPL? J&R Computer/Music World in New York City carries HP's themselves (incl. 48GX) bit not options: www.jandr.com I believe the current price is approx. $170-200... However, personally prefer HP Direct... direct from HP and all the options, MANUALS (Advanced, regular, etc.), cables, etc. available... it's damn too bothersome to search their 800 number... sorry... I'm still a bit inept at programming my HP48G. (This is somewhat to my surprise, because I've had little trouble learning how to program anything from PCs to robots to PLCs, etc...) Anyway, an older EduCalc catalog had a list of cheap Technical Notes by Richard Nelson which sound like easy, bite-sized examples from an HP48 programming class. Unfortunately, when I called to buy them, I was told EduCalc had been sold, and the new company doesn't carry those notes. Are they available anywhere else? Does anyone know of a program for my Powerbook 3400 to comunicate with an HP48G via the IR ports? Please reply to me also (I have a hard time geting at news groups) http://www.wpi.edu/~mathew Does HP have a web site with software archives ? I'm looking for old 41 programs, preferably in barcode. Al, If someone hasn't yet steered you in this direction, go to: http://www.hpmuseum.org/ There you will find some HP-41 programs (along with programs for other historic HP calculators). More important, Dave Hicks recently completed an effort with volunteers to scan a lot of the old manuals and make them available on a CD. Many of these manuals contained barcode. Depending on the scan quality, you may be able to print from the CD and scan into your 41. Also, check out HPgene's site for more HP-41 (and some TI) programs: http://members.aol.com/hpgene/index.html Good luck! And don't get lost in the museum! -rdj Al Gerharter wrote: there some sort of rule of thumb that enables one to quickly determine an appropriate scale and point of perspective? Any help would be greatly appreciated. Kerry... I would suggest being more specific, e.g.: o When I recall my stored library (from the port menu) to the stack, level 1 says: Library nnnn: xxxxxx o After I attached my library to the HOME directory and then did right-shift LIBRARY, I did/did not see my library's name in the menu. P.S. -- did you include a $CONFIG variable, containing [this is how you can make your library auto-attaching] o After pressing the menu key with my library's name, I did/did not see my command names. What do you put in the nnnn, the library number? Thanks everyone who answered my question, but actually that´s not necessary because I´ve already fixed my problems. Does anyone have an idea how to send a fax from a hp48, when I connect it directly to a serial external faxmodem??? My guess is that there shoeld be a way to send such info from HP to modem... Tomorrow morning (25 February) I am participating in a local physics competition. The setup for my event is as follows (forgive the ascii drawing, it's been a while): /| -L- /-|------------* | | ^ | | | /| | | | / | | | | | | | H2 | | H3 | | | | | | | H1 |__| | | | | | |__| | __| -D- __| | Basically, the procedure is to release the ball (*) from height H3 (my decision on what H3 is, it needn't be the same as H2, any angle will suffice); have the ball swing down on a 40-50 cm rod (L) and be fired as the rod hits H1, which is D away from the pivot point. My task is to, given an assigned H1, H2, D, and L predict with good accuracy the point where the ball will land. Anyone have a program written (or a burning desire to write one) that can help me with this? Thanks, avi -- Brought to you by the little, green men on my shoulder. Avi Zollman......................avi.at.zollman.dot.com But an abacus *does* do trig... you just need to know how to do it. Once you know how to multiply and divide on the abacus, you can just use Taylor series... easy. I can calculate on an abacus a sin or a cos to say 4 or 5 decimal places in about, oh, 7 minutes :) But it's easy to make a mistake, so I really need to do it twice to check (14 minutes). Probably not useful on a test, huh? I'd stick with the slide rule. When I was a pup, it was log tables for physics tests - none of this electronic nonsense. (I happen to have done high school in the early 80's - cheap calculators had existed for many years, but we had a brain dead teacher who believed they stunted math learning). anyone have the formulas for calculating trig functions. I can only find lookup tables. I need to write a program for a microcontroller to calculate the length of a robot arm as it swings in an arc. Eugene Nine The Taylor expansion for trig functions can be found in most elementary calculus textbooks! sin(x) = x - x^3/3! + x^5/5! - x^7/7! + x^9/9! - .... cos(x) = 1 - x^2/2! + x^4/4! - x^6/6! + x^8/8! - .... x is in radians, of course The abacus makes a great storage register (albeit ONE storage register) for all your STO+,-,*,/ needs though, and as long as you don't 'reset' it by accidentally dropping/bumping it ;-) Great combo with a slide rule! Peter Khor Just go here, this site has full instructions: http://www.users.dircon.co.uk/~damold/soroban/index.html There are two common types of abacus, the chinese and the japanese version (known as the soroban). The soroban has one bead (worth 5) in the top and four beads (each worth 1) at the bottom - the chinese has two beads at the top (also worth 5) and 5 beads at the bottom (each worth 1). In the soroban, each column indicates a decimal place... that's because a maximum of 9 can be counted on a column (1 bead * 5 + 4 beads * 1). The chinese can handle a maximum of 15 per column (2 beads * 5 + 5 beads * 1). The soroban is well suited for earch, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-Complaints-To: usenet@news.ut.ee NNTP-Posting-Date: 6 Mar 1999 20:20:18 GMT X-Mailer: Mozilla 4.5 [en] (Win95; I) X-Accept-Language: en Xref: ionews.ionet.net comp.sys.hp48:86060 werner_huysegoms@my-dejanews.com wrote: Checked AUR. Seems that all the automatic simplifications are not included there, because there is no reference to SIN(PI) ... Best wishes from, -- Robert Tiismus http://www.physic.ut.ee/~robert ---------------------------------------------------------------------- Organization: GST Whole Earth Networks @ San Luis Obispo, CA, US Xref: ionews.ionet.net comp.sys.hp48:86036 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 werner_huysegoms@my-dejanews.com wrote in message SIN(3.14159265359) - - I naturally to I guess my question has to do with the relation of 90 degrees and PI/2 radians. For example, when I enter these two values in the TAN function on a TI86 I get the same message Error Domain, which is the same as Infinite Result, that TAN 90 is undefined. In other words, it seems the TI can understand the relationship of the two inputs and then give the same result but the HP needs to simplify PI/2 first. Is there some way to set the HP so it interperts PI/2's radian relation to 90 degress as an expression rather than its numeric value? Does this make sense or should I be looking at this differently? - ----------------------------------------------------------------- Isaac Tipton isaac@nothanx.shadetreeweb.com remove subdomain from address when replying Shadetree Web Design http://www.shadetreeweb.com/ PGP Public Key http://www.shadetreeweb.com/misc/itkey.htm - ----------------------------------------------------------------- -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.0 iQA/AwUBNuCY4RSyxevsOQAjEQKUPgCfdW9hvVBfiVVQbpZsbtqR0dR1LawAoIW6 ePP4R29O8ey1j3uu5B75aDaE =VipY -----END PGP SIGNATURE----- ---------------------------------------------------------------------- I don't know about the TI-86, I know the 92 has an 'exact' mode and an 'approximate' mode - meaning that in exact mode it doesn't calculate PI/2, but rather uses a lookup list (whan evaluating) to see that TAN(PI/2) is undefined. And of course in DEG mode 90 degrees is exact.. If the TI86 doesn't have an exact mode, than it may test the input value to see whether it equals PI/2 to 14 digits, what I believe the accuracy to be. That would be questionable, to say the least. Best Regards, Werner Huysegoms Reply-To: werner.huysegoms@dgx11.cec.be remove the x before replying -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Organization: GST Whole Earth Networks @ San Luis Obispo, CA, US Xref: ionews.ionet.net comp.sys.hp48:86115 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Can the 48GX be set to return exact values in this way? werner_huysegoms@my-dejanews.com wrote in message an PI/2, is value accuracy to be. ==---------- Own -----BEGIN PGP SIGNATURE----- Version: PGP Personal Privacy 6.0 iQA/AwUBNuN6MxSyxevsOQAjEQIt1gCfbiHcnei6cT+MENJUJ72BhlIN52cAoKnz Ef40cXNyl0L5KrKe6hTZU1E4 =7LZM -----END PGP SIGNATURE----- ---------------------------------------------------------------------- NNTP-Posting-Date: Fri, 05 Mar 1999 11:35:19 MET DST Organization: SunSITE Denmark (sunsite.auc.dk) Xref: ionews.ionet.net comp.sys.hp48:86004 How do I include calling labrary functions in SYSRPL ? Peter Michael sods@control.auc.dk ---------------------------------------------------------------------- Date: Fri, 05 Mar 1999 12:18:29 +0100 X-Mailer: Mozilla 4.5 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.sys.hp48 Subject: Whoww - 2000 hits to HPComm Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 212.254.24.67 X-Trace: 5 Mar 1999 13:16:02 +0100, 212.254.24.67 Lines: 19 Newsgroups: comp.sys.hp48 Subject: Re: Whoww - 2000 hits to HPComm Date: 6 Mar 1999 20:41:29 GMT Organization: http://home.nordnet.fr/~bdarcy Lines: 8 NNTP-Posting-Host: gate8-81.nordnet.fr Xref: ionews.ionet.net comp.sys.hp48:86062 Thanx for this free advert :-)) HP48 E-zine is a magazine related to HP48 news, with daily updates ! Enjoy it at : http://home.nordnet.fr/~bdarcy and please send feedback to bdarcy@nordnet.fr bye Benoit Darcy - HP48 E-zine : http://home.nordnet.fr/~bdarcy ---------------------------------------------------------------------- I entered that integral at www.integrals.com and it gave the following result: Log[Y] - 1/2 * Log[A^2 + Exp Y^2] Actually, the answer contained the variable X, since that site is set up to integrate wrt X, so I substituted. Give www.integrals.com a try; it's a helpful site. I'm not sure why Mathematica didn't work for you, since www.integrals.com is powered by that tool. -Dan ---------------------------------------------------------------------- halldan@REMOVETHISmail.dec.com wrote: Guess you made a typo: 1/(x*(1-Exp[-(x/A)^2])) Cannot be solved by www.integrals.com, and your solution does not derivate to the integrand. Best Regards, Werner Huysegoms Reply-To: werner.huysegoms@dgx11.cec.be remove the x before replying -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- The HP-42S cannot print bar code to the IR printer. End of story. There is no way to do this. Period. Now...regarding the HP-41. The PPC rom contains NO routines that enable or help bar code printing per se. There is a Barcode analyzer in the rom, but that only analyzes bar code scanned in by the wand...it does NOT help printing it. There is NO way to print HP-41 bar code on the dedicated 82143 thermal printer without modifications to the printer itself (I'm 90% sure of this one). There are programs that enable the HP-41 to print bar code to the 82162 HP-IL thermal printer AND to the HP-IL thinkjet. Several of these programs require the use of other plug-in modules. You can find these listed on my website at the URL below. Cheers! Gene Http://members.aol.com/hpgene -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Does anyone have any thoughts as to how the purposed breakup of HP into separate entities will effect the calculator division? Will the weaker divisions be sacrificed just to make the bottom line look better for the computer related divisions? Harold A. Climer Lab Instructor Dept.Of Physics & Astronomy U. Tennessee at Chattanooga ---------------------------------------------------------------------- calculator. Now it works back normally but aren't there any consequences. And how come that my hp turns off? ---------------------------------------------------------------------- calculator. Now it works back normally but aren't there any consequences. And how come that my hp turns off? --------------------------------------:: o a) it's broken b) the batteries are going dead c) an alarm went off with a program that told the calc to turn off. d) evil gremlins, or the dead trying to communicate with you e) quantum anomoly f) bug in some program you were running g) ??? ----------- :: o .---..-..-..-..-..-..-. . .-. .-. .-..-..-.. .-. `-' `-'`-'`-' `-' `. ^ .' `--^--'`-'`-'`-'' `--^--' Thinking Is The Enemy; Dada Your Way To Happiness! ---------------------------------------------------------------------- X-Mailer: Mozilla 4.05 [en] (WinNT; I) Xref: ionews.ionet.net comp.sys.hp48:86021 Ray W Grout wrote: ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dumb. Really dumb. X. ---------------------------------------------------------------------- Xerxes wrote: Yeah, but at least it protected him from getting a concussion. -Joe- -----------== Posted via Deja News, The Discussion Network =decimal arithmetic. The chinese abacus on the other hand is designed to handle arithmetic in powers of 16 (that's because their weights and measures system was based on powers of 16). The site above gives instructions for the soroban... you can still do decimal arithmetic on a chinese abacus, you just need to ignore 1 top bead and 1 bottom bead.. i.e. use it as a soroban. Sometimes the extra beads can come in useful as placekeepers or to mark a carry or a borrow. Anyway, speed comes through practice... so read the pages on the website and good luck! PS: The chinese abacus is well suited to do hex arithmetic... who would have thought? -- gnothi linoukon : japanese version (known as the soroban). The soroban : has one bead (worth 5) in the top and four beads (each worth 1) : at the bottom - the chinese has two beads at the top (also : worth 5) and 5 beads at the bottom (each worth 1). I haven't seen this mentioned but the Chinese one, two beads on top and five beads on the bottom, has a rather interesting 'extra' capability. You can use it for a hex calculator since each column can represent a number from 0 to 15! Many years ago I had a description of how ut use it for decimal calculations and I extended those rules to allow hex calculations. It raised more than a few eyebrews when people saw me using it next to the computer (since I'm not Chinese). -- john R. Latala jrlatala@golden.net One thing I've got to know is -- I've read it can be used as a remote control to change channels on my TV, and the thought of messing with my sister's mind is too fun to pass up. How do I program this thing to change channels? :) Thanks :) There are some programs that take that job. someone else as already built those programs, so you don't have to make it your self. Try at http://hp48.ml.org/utils/comms/ I think you'll find what you're looking for. http://www.hpcalc.org/utils/comms/default.html It isn't too easy to use but it work really well! Now, the thing is, that ROMs, being read-only by nature, refuse to write anything down at all; hence they are basically lazy, shiftless, and let's face it -- all but useless when it comes to getting any answers down on a paper napkin. But I wonder... is it legal to send a ROM from a non-working HP48GX? Just get one that has a broken screen, extricate the ROM, and there it is, already in binary (but as I said, quite useless :) Anything you can do, I can do better... (Lyrics by Irving Berlin, from Annie Get Your Gun) True; built-in UserRPL arrays support numeric elements only. Besides going the route of loading up on algebra libraries, however, you can very easily make yourself short programs to perform dot and cross products for vectors (representing the vectors as lists, which can contain symbolic elements); in this case (that's SigmaLIST), and cross I leave to you to supply :) Does anyone have an idea how to send a fax from a hp48, when I connect it directly to a serial external faxmodem??? My guess is that there shoeld be a way to send such info from HP to modem... I use to have a small IR util that made my HP48GX work as a remote control I worked fine, but I lost it... I found a lot of other utils of the same type on the net but none of them work for me I got rem34bg but it's complicated and doesn't work that great.... If anyone knows any GOOD program please let me know. How would I go about graphing a piriform y^2=x^2(2-x) on my HP 48s. The EQUATION function does not give a correct answer when plotted because this is a function where y is implicitly defined by x. 4 You could graph the functions y = x*sqrt(2-x) y = -x*sqrt(2-x) together by storing them both in a list in the EQ variable. Posted and Emailed The question was: The convention for FUNCTION plotting in the HP48 is (quoting from User's Guide): For equations whose left-hand side consists *only* of the name of the dependent variable, only the right-hand side expression is plotted. [Otherwise] the left-hand and right-hand expressions are *both* [independently] plotted It would be hard for the calculator to do otherwise than stated above, because if you have not solved for (i.e. isolated on one side of a formula) one variable as an explicit function of the other variable, then you are expecting the calculator to figure out how to make such a solution. Sometimes (as above), there is an algebraic solution that the calculator might be able to isolate for itself, but in general there might not be such a solution, nor in general might there be any unique numerical solution, nor would the calculator know what starting guesses you might want to try in the numeric solver, if that was the only way to solve the equation. So, to plot a function, you must solve the equation yourself (or supply a program which uses the numeric-solver ROOT function). In the above case, take the square root of both sides; if you want to see both possible Y values plotted for each X, then you will need to specify two separate expressions (one for each sign of the square root) in a list, so that the HP48 can plot each separately. When you have an equation to plot which is a conic (not true in the above case), you can use a CONIC plot; other cases may be more amenable to POLAR or PARAMETRIC plot types, etc. There don't seem to be enough megabytes yet in calculators for any more Artificial Intelligence programs to sort out and choose the most appropriate solution or type of plot; even the HP48, however, has quite a lot of IQ (derived from its designers) for its size and price. Conic plotting is more powerful than you think! In fact, CONIC _does_ plot the above equation without any trouble--try it! CONIC can plot any equation in which the independent variable (y, most of the cases) appears as a quadratic. In other words, it plots: f(x)*Y^2+g(x)*y+h(x) for any function f, g, and h. I use CONIC for elliptic curves. I am looking into getting an expansion RAM card in either the 1M or 2M size. I checked the listed companies at hpcalc.org and am leaning towards Cynox. I would like some advice on whether it is a good idea and what the chance is that it will destroy my GX and such. I definately don't have the $300 for a hp-aprooved card. I just received my Cynox card yesterday and I've installed it and it's working just fine. I was a little dissapointed at the look of the card at first. It's not encased in metal. It has only a sheet of plastic covering it on either side and that sheet doesn't cover the whole thing. But it goes in the calc easilly and comes out easilly so I can't imagine any reason to have it in a metal shell. No real force is needed. I'm very happy with it so far. Time will tell me more. In a month or so I'll probably get a second one. Assuming I can find good use for this much room. :) I'm having a small problem with the Invalid Card Data error after resetting, but it seems to go on fine and nothing is lost. I'm pretty sure this isnt a problem with the card since I've been having the same problem with other cards in my other calc and in this one. I think it's something to do with how I uninstall libraries but I don't know what yet. Some of the older versions, such as the version M that I have, have a bug in their STO and PINIT commands. There is a STOFIX library which has replacement commands to avoid the bug. It is available from http://www.hpcalc.org/ -- Virgil vmhjr@frii.com Barry On Fri, 26 Feb 1999 17:58:55 -0700, vmhjr@frii.com (Virgil) wrote: is a bit less than 413403, in fact Maple gives a = 413402.99999959684214515417352335955337731525998541. Our HP48GX calculates a = 413403.000001. Now I did some logarithmic calculations, namely a = 10^(log(2 + sqrt(3))*10 - log(3 - sqrt(3))) = 413402.999992, whereas a = e^(ln(2 + sqrt(3))*10 - ln(3 - sqrt(3)) = 413403.000001. Any explanation for this phenomenon? Just for fun I used an old program Derive 2.57 for dos. In the exact mode of calculations, derive simplifies the expression to 355*sqrt(12204867)/6 + 413403/2 this evaluates to 91410821595489670188673247153837203008152371199724303 ------------------------------------------------------*10^5 22111794446479298801612855176505411647312854320180000 or approximates to 4.13402999999596842145154173523359553377315259985352648834989958421977476293 7154390918997516391210806*10^5 to 100 digits. http://chem.lsu.edu/bz/bz.html | You, by receiving my comments, advice or opinions, agree to study other sources of information and you furthermore agree to make your own decisions. Any use of any information I provide is understood to be 'at your own risk' and you agree to hold me blameless and protect me from any consequences for any injuries or liabilities that you may incur through any use of ideas or information that I may supply. Fight Spam! Join CAUCE! == http://www.cauce.org/ * BEWARE: I will never buy anything from companies associated with * inappropriate online advertising (unsolicited commercial email, * excessive multiposting etc.), and discourage others from doing so too! --likewise companies involved in telephone solicitation. I believe that Maple is incorrect, _ in the last two digits_. Your computations are also incorrect. Using a SGI R5000 180MHz Indy running SGI Irix 6.2 with the Dec 1998 patch set and using bc -l with the following program: scale=256 m=2+sqrt(3) m n=m*m n o=n*n o p=o*o p q=n*p q r=3-sqrt(3) r s=q/r s t=e(l(2+sqrt(3))*10-l(3-sqrt(3))) t s-t quit I receive the following results: # bc -l < /tmp/v 06280558069794519330169088000370811461867572485756756261414154067030 29969945094998952478811655512094373648528093231902305582067974820101 08467492326501531234326690332288665067225466892183797122704713166036 78 23227917807732067635200148324584747028994302702504565661626812119879 78037999580991524662204837749459411237292760922232827189928040433869 96930600612493730676132915466026890186756873518849081885266414709 12519084930824894689280207654418645840592023783506391926277536967831 69253199413388134527086772849243175732209865291125958065899256607417 957028408574912229465860816524376462614596229263887146393729805850 98287024765800295697203602849572172930748526140002400336978421717593 48351206861972980982548339327531760920487138664784358647844557818390 83663511263532972516376998405729033747231668477194106400383582305318 89248890274869638657198641097071639535982547693304521441368067568293 22119948614932838644654680722430006769554785292714561976778784157286 70688769057002533774743205916433122887482576834454191863774320120376 5 9371944193020548066983091199962918853813242751424324373858584593296=---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86024 How did you accomplish this? I have tried using my laptop (which is also a Toshiba Satellite) but have been unsuccessful. Richard Alimi richard@ralimi.hypermart.net HTMLSoftware AOL IM: RichAA31 ICQ#: 17843183 ----------------------------------------------- Want great free software? Go to HTMLSoftware's site at http://ralimi.hypermart.net/ news:7bdeeo$100$1@alto.univ-mlv.fr... ---------------------------------------------------------------------- Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Newsreader: Forte Agent i1.5/32.451 Xref: ionews.ionet.net comp.sys.hp48:86025 Does anyone know a quick way (program ) to have an object copied to the stack multiple times. For example I need to have 5.343 entered 50 times, but I don't want to have hit the enter key 50 times. Thanks ---------------------------------------------------------------------- do the trick. I always do that when I need multiple copies of a object - it doesn't take more than a couple of seconds and surely beats hitting ENTER many times. If you find yourself doing this a lot of times, you can just write a small (that program takes an object in level 2, a real number N at level 1 and returns N copies of the object on the stack). You could add it to your CST menu if you like. Ice Brad skrev i meddelelsen <575A16056B3AFD17.B6EC5E29CF0826CC.94EEDE73E82F8D18@library-proxy.airnews.ne ---------------------------------------------------------------------- Date: Fri, 05 Mar 1999 15:32:27 -0800 Organization: Geotel Communications X-Mailer: Mozilla 4.5 [en] (Win98; I) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.sys.hp48 Subject: Re: copying stack arguments Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 209.180.204.101 X-Trace: 5 Mar 1999 17:30:05 +0600, 209.180.204.101 Lines: 11 X-Report: Report abuse to abuse@uswest.net. Subject: Re: copying stack arguments X-Newsreader: MT-NewsWatcher 2.4.4 Lines: 19 Date: Fri, 05 Mar 1999 16:17:07 -0700 NNTP-Posting-Host: 216.17.134.158 X-Complaints-To: abuse@frii.net X-Trace: news.frii.net 920675828 216.17.134.158 (Fri, 05 Mar 1999 16:17:08 MST) NNTP-Posting-Date: Fri, 05 Mar 1999 16:17:08 MST Organization: Front Range Internet, Inc. (800.935.6527) Xref: ionews.ionet.net comp.sys.hp48:86030 In article stang@airmail.net (Brad) wrote: with y in position 2 on the stack and n in position 1, will leave you with n copies of y in positions 1 to n on the stack. -- Virgil vmhjr@frii.com ---------------------------------------------------------------------- this seems to be a silly question. What is it good for? OK. Here is my USR-RPL-solution: This gives You : 4: 5343 3: 5343 2: 5343 1: 5343 Easy, isn[LeftGuillemet]t it? Bye. Joachim Stump Brad schrieb in Nachricht <575A16056B3AFD17.B6EC5E29CF0826CC.94EEDE73E82F8D18@library-proxy.airnews.ne ---------------------------------------------------------------------- I've prepared a circuit simulator for those begginer students that are starting to know circuits. It is extremely easy to use and very user friendly. It's name is Assistant II and it is based in the Assistant and powered by Per Stenius' CSim. Get it at HPCALC www.hpcalc.org, in Electrica Engineering area. If you wish a more advanced circuit simulator, try ZAC or CSim for numeric simulators and SVF and SCF for symbolic simulators. - Roberto Perez-Franco http://pagina.de/Perez-Franco icq# 14607303 -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86034 I've tried to install erable about 20 times using setup. In the past I've had no problems but in the last couple of days I've had no success. It frequently generates an error Too many retries, then when I go to check my ports I find that port1 has automatically merged with port0. Have no idea what's going on but is driving me nuts. Any help would be greatly appreciated. Thx Terry Bowman ---------------------------------------------------------------------- X-Trace: typhoon-sf.pbi.net 920734454 206.170.209.16 (Sat, 06 Mar 1999 07:34:14 PDT) NNTP-Posting-Date: Sat, 06 Mar 1999 07:34:14 PDT Organization: SBC Internet Services Xref: ionews.ionet.net comp.sys.hp48:86050 I don't like the automatic installation if Erable, I do it manually. But first you need a working comm program. I am using HP Comm found at http://over.to/hpcomm it is more flexible than Kermit. My user memory (0 port) stays empty when downloading Erable. My port 1 must be empty (clean). Then I download Erable1 or Erable (from the Absolute version) to the stack. Then I do the install thing to port1 purging the variable left in the stack. Then I download the other needed components (setup, gxkeys). Once I have SETUP and GXKEYS as variables in the stack I can install Erable. Before that, I put UFL in a different port since it will work from anywhere. I do install Java in port 1 after Erable since it will run from port 1 too. After finishing all that hard work, I do a complete backup of user memory with that wonderful utility if problems occur. The latest beta release of Erable seems very stable, but RainEQ is not which I also use. I also make sure my port1 is read only after I complete the installation. J.R. Martinez anadigit@pacbell.net jmartin@calstatela.edu news:36E08A72.D1781787@worldnet.att.net... ---------------------------------------------------------------------- ideas of the program structure, mnemonics etc. What I really need is more information about using the memory, storing of objects(lists,matrix,etc), algorithmics for data compressiom and some built-in sub-routines like -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Thanks Bel216n ---------------------------------------------------------------------- Bel216n, dame tu email y te mando la versi227n en espa226ol. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- thanx! ----------- :: o .---..-..-..-..-..-..-. . .-. .-. .-..-..-.. .-. `-' `-'`-'`-' `-' `. ^ .' `--^--'`-'`-'`-'' `--^--' Thinking Is The Enemy; Dada Your Way To Happiness! ---------------------------------------------------------------------- X-Mailer: Mozilla 4.5 [fr9 70030054905001047521188344487905626351471906768097694417932025179898 91532507673498468765673309667711334932774533107816202877295286833963 22 98995842197747629371543909189975163912108064731616069473012310067742 16060162624896943172924337491392373022062175278962426737250518466942 01446677539862285186186800523819017978643574708621259782153071815673 8 33595533773152599853526488349899584219774762937154390918997516391210 80647316160694730123100677421606016262489694317292433749139237302206 21752789624267372505184669420144667753986228518618680052381901797864 35747086212597821530717388710 00000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000768028 The expontential and non-expontential forms of the computations are the same for 250 digits. I attribute the differences to the point at which the series expansions for the expontential and natural logarithm were terminated by bc. The bc makes that determination based on the magnitude of the last term used. The computations took about 7 and 2/3 seconds of cpu time. Randolph J. Herber, herber@dcdrjh.fnal.gov, +1 630 840 2966, CD/CDFTF PK-149F, Mail Stop 318, Fermilab, Kirk & Pine Rds., PO Box 500, Batavia, IL 60510-0500, USA. (Speaking for myself and not for US, US DOE, FNAL nor URA.) (Product, trade, or service marks herein belong to their respective owners.) Michael_Hoppe@k2.maus.de (Michael Hoppe) wrote: that is 413403 to 12 digits, the precision of the 48 Roundoff, of course. SQRT(3) rounded to 12 digits is slightly larger than the exact value of SQRT(3) - thus (3-SQRT(3)) is slightly smaller - resulting in the extra .000001. Nothing to be done about that, save using higher precision, with the LONGFLOAT library, for instance. The fact that the error in 10^(..) is larger than in e^(..) is logical: The roundoff error of the exponent is magnified to a larger degree when performing 10^x as when performing e^x, and the direction of the roundoff was different in the two cases. It should be said that the 48 uses unbiased rounding, which guarantees for instance that -1 <= x/sqrt(x^2 + y^2) <= 1, for real x and y even after 5 rounding errors (^2, ^2, +, sqrt, /). Yet this does not hold for any arbitrary formula... Best Regards, Werner Huysegoms Reply-To: werner.huysegoms@dgx11.cec.be remove the x before replying How about EXP(Pi*Sqrt(163)), which is approximately 262537412640768743.999999999999... ? (well, is it an exact integer or not?) How about (9/5)*(7/5+2/(1+(3/7)*5^(3/2))) = 3.14159265... The above results were discovered by Srinivasa Ramanujan, a well-known mathematical prodigy of enormous originality, who died more than 50 years before the first portable calculator was born. So, for an even greater mystery, how might Ramanujan have discovered these things? ----------------------------------------------------------- It is not. The very next digit in the decimal expansion is a 2. It is interesting just how sensitive the computation is to the number of digits past the decimal point are retained in the computation: scale=8 e(4*a(1)*sqrt(163)) 262537362461336331.38060249 scale=16 e(4*a(1)*sqrt(163)) 262537412640768545.6923434076537637 scale=32 e(4*a(1)*sqrt(163)) 262537412640768743.99999999999917129722249900550496 scale=64 e(4*a(1)*sqrt(163)) 262537412640768743.9999999999992500725971981856888793538563373358960 531355776306657 scale=128 e(4*a(1)*sqrt(163)) 262537412640768743.9999999999992500725971981856888793538563373369908 62707537410378210647910118607312951181346186064504193083887914305031 21845341259 scale=256 e(4*a(1)*sqrt(163)) 262537412640768743.9999999999992500725971981856888793538563373369908 62707537410378210647910118607312951181346186064504193083887949753864 04490572871447719681485232243203911647829148864228272013117831706501 04522268780144484177034696946335570768172388768100086467049237899569 461 scale=512 e(4*a(1)*sqrt(163)) 262537412640768743.9999999999992500725971981856888793538563373369908 62707537410378210647910118607312951181346186064504193083887949753864 04490572871447719681485232243203911647829148864228272013117831706501 04522268780144484177034696946335570768172388768100092370653951938650 63627576578885582239481142769121008308866511072847106234658112981830 12459132836100064982665923651726178830863710786452195528154274665109 61100147250209790463938177871257500980365779223064312165113108738059 9298242335584945612399567699978435964246954593336937751 $ bc -l scale=8 (9/5)*(7/5+2/(1+(3/7)*e(l(5)*(3/2)))) 3.14159266 scale=16 (9/5)*(7/5+2/(1+(3/7)*e(l(5)*(3/2)))) 3.1415926538056883 scale=32 (9/5)*(7/5+2/(1+(3/7)*e(l(5)*(3/2)))) 3.14159265380568820189839000630152 quit $ bc -l scale=1024 4*a(1) 3.141592653589793238462643383279502884197169399375105820974944592307 81640628620899862803482534211706798214808651328230664709384460955058 22317253594081284811174502841027019385211055596446229489549303819644 28810975665933446128475648233786783165271201909145648566923460348610 45432664821339360726024914127372458700660631558817488152092096282925 40917153643678925903600113305305488204665213841469519415116094330572 70365759591953092186117381932611793105118548074462379962749567351885 75272489122793818301194912983367336244065664308602139494639522473719 07021798609437027705392171762931767523846748184676694051320005681271 45263560827785771342757789609173637178721468440901224953430146549585 37105079227968925892354201995611212902196086403441815981362977477130 99605187072113499999983729780499510597317328160963185950244594553469 08302642522308253344685035261931188171010003137838752886587533208381 42061717766914730359825349042875546873115956286388235378759375195778 18577805321712268066130019278766111959092164201989380952572010654858 632788 quit which is correct to the last, truncated digit. Randolph J. Herber, herber@dcdrjh.fnal.gov, +1 630 840 2966, CD/CDFTF PK-149F, Mail Stop 318, Fermilab, Kirk & Pine Rds., PO Box 500, Batavia, IL 60510-0500, USA. (Speaking for myself and not for US, US DOE, FNAL nor URA.) (Product, trade, or service marks herein belong to their respective owners.) Of course I'm aware of roundoffs, but actually my question is why the log- computation gives a better result than the ln-computation -- Whereas the 10^x-computation gives the better result ... So again: any explanations for this log-ln-phenomenon? Does a log-computation generally increase precision compared to the ln-computation? Michael -- -= Key fingerprint = 74 FD 0A E3 8B 2A 79 82 25 D0 AD 2B 75 6A AE 63 -= PGP public key available on request. =--------------------------- Michael_Hoppe@k2.maus.de (Michael Hoppe) wrote: Part of your original post : Look again. The 10^ result is definitely less accurate than the e^ result. absolute error: 10^result : abs(a - 413402.999992) = 7.6e-6 e^ result : abs(a - 413403.000001) = 1.4e-6 relative error: 10^result : abs(a - 413402.999992)/a = 1.84e-11 e^ result : abs(a - 413403.000001)/a = 3.40e-12 Ln, log, exp and alog are as accurate as they can get, but save for the FFT algorithm, there are few miracles in numerical computations. If you raise y to a power (x + e), with e the roundoff error then naturally the error y^e on the result increases as y increases, and the power has been calculated with about the same absolute error e *in these two cases*. (Actually, part of it is sheer bad luck. The power of 10 is 5.616... and the power of e is 12.932... yet the power of 10 is calculated with an absolute error of 8.5e-12, and the power of e with an abs. err of 3.4e-12 (verified with LONGFLOAT). Usually, the power of 10 is smaller and the absolute error is likewise smaller - but not in this case. Roundoff error is unpredictable.. only the (often unrealistic) 'max' error can be predicted) Best Regards, Werner Huysegoms Reply-To: werner.huysegoms@dgx11.cec.be remove the x before replying Michael_Hoppe@k2.maus.de (Michael Hoppe) wrote: When retaining only user precision between operations, different original arguments will vary as to whether log or ln will produce the more accurate result: Calculators based on decimal digits have a mantissa range which varies over a factor of 10; correspondingly, a given amount of error in the last digit represents a percentage error which also varies by a factor of 10. It may be regarded as a matter of chance, or something which varies with each set of input, that can cause the final error to vary, depending upon which base is used for logarithms, even if every result for log or ln is returned as the most precise answer that can be given in the fixed number of digits available. I believe that you can readily construct examples for y^x which will produce better results with ln as opposed to log, but other cases may give the opposite result; there is no ideal base for logarithms which will be better in all cases. As an example, there are quite a few older HP calculators (e.g. HP3xE/C) which give inaccurate results for the no-brainer function 10^x HP prefers to use natural logs, and that starting just above EXP(100), a little bit of rounding throws off the results. BTW, I believe, based upon observations of the time it takes to perform the operations on old Casio calcs, Casio seemed to be favoring base-10 logs as the inherent fundamental internal log function; by doing so, they eliminated the above embarrassment found in older HP calcs, even though in general, Casio calcs were never as accurate overall as HP. BTW, I posted how Casio (at least used to) hide its inaccuracies, in the following article: Unfortunately, no. Only the CKn&Dispatch words perform list processing. The other dispatch routines are specifically checked for and weeded out. It is important to note that automatic list processing (on a whole program basis) works *only* for *SysRPL* programs (just as do most of the user commands in HP48 ROM libraries). For such SysRPL programs, the *system* re-executes the entire program for each individual argument in one or more lists, and the results will be correct no matter what commands or operators the SysRPL program uses to perform its computations. There is *no* such whole-program automatic list-processing for UserRPL programs, because user programs are not structured to announce their required number of arguments and argument types up-front, which is what the system needs to automate the list-processing. Instead, if you submit arguments in lists to UserRPL programs, the user program is executed only *once*, and the results depend on what each individual command or operator in the program may do with any list argument(s). In the above particular case, you could replace + with ADD as you noted, but in general we can not count on user programs to deal with lists by themselves. For guaranteed results with UserRPL programs and arguments in lists, use the DOLIST command, which properly extends the convenience of list processing to all user programs. Summary: SysRPL functions: System re-executes whole function separately for each argument, assembles individual results into a list. User functions: System executes program only once; individual commands within program may or may not work with lists. User functions with DOLIST: DOLIST re-executes whole user program separately for each argument, and assembles individual results into a list, assuring correct results, just as with SysRPL functions. ----------------------------------------------------------- HPShell 3.12 Integrated Developing Environment FREEWARE for all HP48 on DOS PCs. ==================================================== * You program your HP48 and have never seen a real developing environment ? * You look for an easy tool for file transfer ? * You need someone managing your backups ? * You would like somebody's doing all the stupid char conversion stuff ? * You don't want to spend money ? * And you want it all in one ? Well, have a look on the HPShell ! After 5 years of continuous development it includes now a huge list of features one would like to have while programming the HP48 or simply using it. This is a (not complete) list of it's features: ----------------------------------------------- * Multi functional Editor with Syntax highlighting, Line Wrapping, HP48 Displays, ... * File Transfer (Kermit included, ANY other protocol is also useable!) * Backup Management * DOS and HP48 Directory Management * Macros, Hotkeys, Toolbar * free defineable Toolprograms * and much more !!! * IT IS FREEWARE ! The HPShell can be found online on the Web at Here you'll find a more complete list of features, screen shots and a list of download-links (including previous versions) spread all over the world. I have also collected a huge list of HP48 related links on the internet. Go and check it out ! Differences to the previous verison (3.11): ------------------------------------------- This release is a pure bug fix. Source Code of the HPShell: --------------------------- With this version the source code of the HPShell is released and for more infos. Regards, Tom. -- Tom Wellige http://www.wellige.com http://hpshell.wellige.com Newsgroups: comp.sys.hp48 Subject: InForm in SysRpl, autoupdate? Date: Fri, 26 Feb 1999 11:21:41 +0100 Organization: Technical University Berlin, Germany Lines: 20 NNTP-Posting-Host: p-164-114.zrz.tu-berlin.de X-Newsreader: Microsoft Outlook Express 4.72.3110.1 X-Mimeole: Produced By Microsoft MimeOLE V4.72.3110.3 advice, but its a litte bit vage on this subject. Thank you very much for your answers . Sincerely Joachim Stump. First of all, this can be done in SysRpl and I believe it has nothing to do with the POL or hardkey handler. The plot inputform seems to redraw itself each time you choose a new function type. I am therefore half convinced that it restarts itself each time. A loop around the inputform code would easily accomplish this. Test flags could be used to set the appropriate title, labels and fields. The inputform would then respond to the user inputs and redraw itself as required. For instance, in the plot inputform, choosing a new function would set the desired flags, then exit prompting an 'until' loop to continue. The inputform would then be redrawn according to the new data selected by the flags. To totally exit the inputform, a 'true' flag should be sent to the 'until' loop. This method is also rather concise as you only need to code for one inputform. Loops and flags change all the other data. The desired effect could also probably be achieved using inputform messages and specific null-named variables that are used by the inputform engine. However, I only know a limited amount of messages and variables; not enough to perform the required task. And I don't know where to find what all the others are. If someone knows where complete documentation on all the characteristics of the inputform can be found, please post!! I would therefore recommend the loop method. It's simple, relatively efficient, and avoids many of the internal labyrinthine workings of the SysRpl inputform. Good luck. Steve Just got my HP48 and i have been reading some of the posts in this newsgroups and have checked out www.hpcalc.org, this brings me to my question of what kinda things do u recommend me getting for my calculator?? or dont i need to.. eg. shells, java, games.. and if i loaded them onto my hp would they kill my hp? is there a way to backup the memory?? Mark. - Remove the [nospam] to reply - I have finished a (very) simple game in assembly language. The source however, contains subroutines to deal with a custom interrupt handler. This makes for easy grayscale programming. web: http://www.ite.mh.se/~danli97/hp48.html email: danli97@ite.mh.se /Daniel You can find in ZeldaHP source section a great custom interrupt handler for grayscale programming. It comes from HPGRAAL's HPfool programmer and seems to be powerfull. This is available in Main_s.html web page: http://www.chez.com/sunhp/zeldahp/sources/zeldahp_s.html I have both HP42S and HP48GX. It is found that the speed (calculation, display and its reponse) of HP48GX is lower than that of a older model HP42S in general calculation, say + - * / and arithmetic algebra. Is my HP48GX normal? I have seen that some web sites show the way to make RAM card for HP48GX and increase the speed of HP42S. Anyone can tell me how to increase the speed of 48GX? It's an illusion, caused by the fact that in the HP48, the entire screen must be updated and re-displayed after calculations have completed. To help you see the most recent result as soon as possible, the stack levels are displayed first, starting with level 1; when these are finished being interpreted and displayed, then the status area (top) and menu key labels (bottom) are finally displayed; then, finally, the hourglass turns off. You may feel that it was the calculation that was slow, but actually, any arithmetic + - * / takes only about .001 or .002 seconds, which you could not possibly notice; all the rest is due to the fancier and larger screen display, and to all the variety of object types which need to be decompiled for display. Another fact is that if you continue to press more keys, the screen display is bypassed entirely, until processing has caught up with keystroke actions; thus you need not wait for the screen to finish displaying. You have to load down the calc with some pretty hard work to fill up the 15-character type-ahead buffer, so don't be afraid to keep typing :) Not really; it's superior :) Throw it harder or drop it from higher :) Use command menus in preference to input form interface screens. Use faster techniques in program design. John H Meyers wrote: This delay is even more noticeable if you are running a stack replacement like Java. I've just received a cynox ramcard (256kb with cover) and looks working very well with my 48gx. After my post about having bought a ram card for hp48gx, I received some messages from italians about it. I wish to reply (in italian) to all them: really is an excellent editor. Inmediately I transfered it to my calc and began using it. I thought it would be a nice tool for User-RPL programming so I made a small program to test it. Right after I pressed ENTER, the program compiled but there were labels changed. A CHOOSE command for example was changed by a GRIDMAP command, and if I tried to edit the program again it became worst. So I didn't want to destroy my programs but I also didn't like the idea of deleting such a wonderful library. I began my testing with the Win95 version of EMU48, with an exact configuration of my calculator. I installed EDEN and tried to edit the same program it tried in my calc. It Worked OK!. I still don't know why it doesn't work that way in my calc. The only solution I got, was to use the Java stack replacement with the ML decomp routine. Amazingly this routine got the compilation ok. But 32k is too much for a library. I was happy with HPSauce anyway. I don't know if someone else noticed this bug, I don't read this newsgroup since a lot time. Please tell me if there's something I'm missing or if it really is a bug. My calc is an HP48GX with a rom rev R (the same rom I transfered to EMU48), without expansion cards. Who is HPFox, anyway?. I would be glad if someone answers me these questions. They've been bothering me since a long time. what soft are u using ... none of mine can handle the com5 port emulated by the tp560 .... even win's hyperterminal cannot handle it Ok, I agree too. But wouldn´t it be great if we had such a good program to do that? I´ve calculated the domain of functions always with the classic method (not HP, in fact no calculator at all) and sometimes is hard. Nothing else, Last day I downloaded from www.hpcalc.org the file Programming in system RPL (PDF) by E. Kalinowsky but when I try to open it, my Adobe Reader tells me that cannot open the file because there´s some problem. Is there any bug in that version of the document? Have anyone knowledge about it? bigcookie@earthling.net wrote: The document requires Adobe Acrobat Reader version 3.0 or higher (or any other PDF 2.0-compatible reader.) Your problem should be solved if you get a newer version of Adobe Acrobat Reader (go to http://www.adobe.com/prodindex/acrobat/readstep.html ). If you already have Acrobat Reader 3.x or that still doesn´t work, try downloading the file again --- it might have been corrupted in the transfer. : Hi Robert. I too have had many problems attempting to read .pdf versions of the tutorial, as a matter of fact, I still am not able to do so. Unfortunately, I think it is only possible for you to use MS Word, if you have it, or a MS Word reader program. And still these solutions might not work unless you have a gargantuan amount of free memory in your computer. For me, I will wait until the tutorials have been properly converted to PS or TeX format and split into manageable chapters before I waste any more time trying to read them. In case you still don´t know, there IS a PostScript version of the document, which was made available at the same time as the PS version. No plans for TeX, but maybe a DVI file, if there is a PS or PDF converter to DVI. If you can´t read the PDF file, see the message I wrote You can download this game on the great eric's hpcalc website at: http://www.hpcalc.org Or get this program on the author's web page: http://www.chez.com/sunhp Ouups it is me :) Your demo looks very good. How much memory do you think the whole game is going to take? About the language, it would be kind ou your part if you could make it in english. You would reach a much greater nunber of people. By the way, I'm Brazilian, and I can understand only Portuguese and English... Ricardo P. Jasinski. Your demo looks very good. How much memory do you think the whole game is going to take? About the language, it would be kind ou your part if you could make it in english. You would reach a much greater nunber of people. By the way, I'm Brazilian, and I can understand only Portuguese and English... Ricardo P. Jasinski. Sure you can't damage the ROM (read ONLY memory) even if you run a buggy assembly code. You certainly damage the RAM though .. Regards, Julien Meyer cbez@unisul.rct-sc.br a 216crit dans le message or Birolo I own an HP48G (love the thing), I purchased it about 3 years ago. I used it the first year and didn't need it anymore. So it sat there for 2 years, until now. I put new batteries in it, turned it on. Restore from Memory? No. Worked fine. Later it began to lock up a lot. I did a memory reset (3 buttons), worked fine. Then a few days ago, I turned it off and now it won't turn on anymore. New batteries hard reset (rubber boot), nothing!!!! I didn't do anything to this calculator, it just died. I called HP, they said to return it (no warranty). The cost is more than purchasing a new one. Can anyone please help me get this great calculator back in working condition? It was working fine for 3 weeks. I don't want to get stuck with a TI92! Thank you for your input. -- First law of computer security: Don’t buy a computer. Second law: If you ever buy a computer, don’t turn it on. Ease up on quoting copyright laws, bro... its just a fucking calculator p.s. some of us actually have the calculator, and no cable to xfer the roms. at: I could not read this message and not respond. We designed alot of important functions into the HP48. However, the use you suggest is not one of them. If you have designed this function into your personal HP, then the machine is one heck of a lot more flexible than even I imagined. Please do NOT post the source code. Is your purpose in getting a copy of the ROM into your computer is so that it will allow your favorite functions to run faster and with more processing power? I suggest you log off right now and go get some professional help before you seriously injure yourself. Or did they take away the cable when they confiscated your shoe laces? Anyway, thanks for standing up with such boldness and eloquence, supporting Hewlett-Packard's claims to it intellectual property. Those on the 'net who hope to someday sell their ideas - and that's all Engineers and Scientists really do - may be grateful for these laws ] (Win98; I) X-Accept-Language: fr Xref: ionews.ionet.net comp.sys.hp48:86045 Salut 210 tous, Je vends plusieurs accesoires pour l'hp48 : - Livre HP 48 Fa224tes vos jeux en assembleur (216dition DUNOD) = 150 F - Livre HP 48 Math216matiques en pr216pa (216dition DUNOD) = 100 F - C211ble dans sa bo224te + son logiciel = 200 F - Explications + puce 128ko pour G = 50 F - idem pour GX mais pour passer de 128ko 210 256ko = 60 F Pour tous renseignements : dumaisp@club-internet.fr Richard ---------------------------------------------------------------------- How do I install it, since it has not enough memory to copy it to port 0 ? -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Try this: Press VAR and them press the button corresponding to your library name: The library will be pushed to the stack. Purge your library from the memory Now the memory is free and your library is on the stack. Enter 0 then STO to store it normaly. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- original variable from the calculator. For example if the library is called BIG, you would enter 'BIG', then PURGE it. Now enter the port number and store it, and turn the calc on then off. Your in business!! Dennis ---------------------------------------------------------------------- Hi, perhaps a stupid question, but I own my HP 48G since a few days. During a program I want to show a provisional result on the display only for two seconds. Then the calculator should continue the program itself without any key stroke. How to program? Thanks Diethard ---------------------------------------------------------------------- X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Cache-Post-Path: isis.esoterica.pt!unknown@por244.esoterica.pt X-Cache: nntpcache 2.3.3 (see http://www.nntpcache.org/) Xref: ionews.ionet.net comp.sys.hp48:86066 Use the comand WAIT, found in [PRG][IN] Greetings Jo213o Pedro P220go ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86056 On 6 Mar 1999, Diethard Pruefer wrote: This is the code you need. Copy in a file and transfer to your hp. %%HP: T(3)A(R)F(.); << @ ... YOUR PROGRAM HERE THIS CALCULATOR WILL SELF-DESTROY WITHIN 2 SECONDS... @ YOUR MESSAGE HERE 1 DISP @ DISPLAY MESSAGE FROM ROW #1 2 WAIT @ WAITS 2 SECONDS @ ... YOUR PROGRAM HERE In order to learn the syntax of these commands, and many more, please refer to AUR (HP 48G Series Advanced User's Reference Manual), hp part no. 00048-90136. Browse http://www.hpcalc.org to find a list of international vendors of hp48 products. ciao enrico. ---------------------------------------------------------------------- Hi, has anybody noticed the small image at http://www.hewlett-packard.de/kaufen.html which shows two calculators that you'll get for free if you web-order during CeBit time? If my eyes don't cheat me it's the HP logo in the upper left corner of these little - obviously solar driven - calcs... Any more specific infos available? Stefan. ---------------------------------------------------------------------- I wonder if it's an HP original, or just a re-badged unit ... Peter Khor ---------------------------------------------------------------------- it's a new calculator. It's the HP6S, and is available in blue or silver, with either battery power or dual (solar+battery) power. Apparently it's a compact scientific calculator aimed at students, and it does not seem to use RPN (though I hope I'm wrong). I'd be interested in hearing more about it as well. Hopefully this will be a sub-$25 calculator to compete with TI's 30 series. Regards, Eric Rechlin Bismarck, ND eric@ hpcalc.org http://www.hpcalc.org/ ---------------------------------------------------------------------- X-Accept-Language: en Xref: ionews.ionet.net comp.sys.hp48:86119 Eric Rechlin wrote: No, there's no official press release yet so I guess HP-Germany decided to leak the information ahead of time to drum-up support for CeBIT. Why on earth have the option of battery or battery+solar? Next to no one is going to buy the battery-only version (except that it seems to be a nicer colour - the impression I got from the web page is that the battery-only one is the blue one, the solar+battery is the silver one). It just ensures that HP will have totally unnecesary, self-inflicted manufacturing and distribution headaches. Doesn't look like it has RPN. Would be nice to have included as an optional mode - even if not the default. It's a pity that HP don't seem to realise that RPN is their Unique Selling Point that distinguishes them from the rest of a very crowded and competitive market. Regards, -- Bruce Horrocks (...speaking for myself) EASAMS Ltd, Waters Edge, Riverside Way (Watchmoor Park) Camberley, Surrey GU15 3PD. Email: Bruce.Horrocks@gecm.com GNET: 832 3032 Tel: 01276 686777 Fax: 01276 686623 ---------------------------------------------------------------------- Judging by the photograph, there *is* no battery-only version. The blue one clearly has the same solar panel in the top-right as the silver one. I think it's solar-only (blue) or dual-power (silver). -- Rick ---------------------------------------------------------------------- X-Accept-Language: en Xref: ionews.ionet.net comp.sys.hp48:86161 rick wrote: Duh... [slaps forehead with hand] ...of course. I've always considered solar-only as about as much use as a chocolate teapot and so the thought never occurred to me. Regards, -- Bruce Horrocks (...speaking for myself) EASAMS Ltd, Waters Edge, Riverside Way (Watchmoor Park) Camberley, Surrey GU15 3PD. Email: Bruce.Horrocks@gecm.com GNET: 832 3032 Tel: 01276 686777 Fax: 01276 686623 ---------------------------------------------------------------------- Don't be too harsh on yourself - the web site does *say* the blue one is battery-powered, after all. You're right about solar-only, though; I bought a teeny TI for about 4 quid for the amusement factor. It needs quite strong light to work. -- Rick Hellicar Somewhere in Basingstoke ---------------------------------------------------------------------- X-Accept-Language: en Xref: ionews.ionet.net comp.sys.hp48:86221 rick wrote: [snip] It has been suggested to me by a reputable source (external to HP though) that: - the blue calc in the picture is a pre-production dummy and that the final version won't have a solar panel that is shown - these calculators were indeed designed by HP-Australia. - confirmed as algebraic only Regards, -- Bruce Horrocks (...speaking for myself) EASAMS Ltd, Waters Edge, Riverside Way (Watchmoor Park) Camberley, Surrey GU15 3PD. Email: Bruce.Horrocks@gecm.com GNET: 832 3032 Tel: 01276 686777 Fax: 01276 686623 ---------------------------------------------------------------------- That's a good question. Maybe the point was to make people choose between a nice color and a useful feature. :) There could be a legitimate reason not to have a solar cell, but I don't know what. (The solar cell makes the calculator flakier? You live somewhere that has no sun?) As someone pointed out (not sure who), it's entirely possible that HP didn't make this calculator and is only selling it. Personally, I looked at the photo and thought, Nah, this can't be made by HP. Or if it is, HP's standards just went down. This is an ironic development. I've always wondered why HP never made solar-powered calculators (it seems pretty logical to me). I've always wondered why they keep their prices so high. *Now* comes the answer to my questions, and I and not likely to buy it! (That's why I put answer in quotation marks.) I wonder how good the keyboard is? -- Derek ---------------------------------------------------------------------- X-Accept-Language: en Xref: ionews.ionet.net comp.sys.hp48:86160 Derek Peschel wrote: This is almost certainly a made-to-order calc from a no-name Taiwanese/Korean/somewhere else Asian manufacturer. No doubt an analysis of the rounding errors and trig. accuracy versus a proper HP will be illuminating. Regards, -- Bruce Horrocks (...speaking for myself) EASAMS Ltd, Waters Edge, Riverside Way (Watchmoor Park) Camberley, Surrey GU15 3PD. Email: Bruce.Horrocks@gecm.com GNET: 832 3032 Tel: 01276 686777 Fax: 01276 686623 ---------------------------------------------------------------------- X-Newsreader: knews 1.0b.0 Xref: ionews.ionet.net comp.sys.hp48:86057 I'm rather sure it is: the text says that you get one of them for free if you order at the CeBit and that it is designed for use in school. Sounds not very expensive. CU Stefan ---------------------------------------------------------------------- Hello! This calculator shown in the german site is not similar to previous HP calcs, specialy the keyboard. I think a third party firm is making the calculators and HP pasting the name HP6S on it. It seems to be a model for general purpose in high and elementray school, maybe also for some promotion a way the firm is giving it for free if you order a product. ================= The write I don't speak for HP when I post here. It really surprises me that people think that they go out and spend about $200 of electronics and yet you treat it like an anvil. I've owned HP's since 1979 and in all that time I have treated these things with respect. I've never even gotten a scratch on any of these screens. HP's are not TI's that you go out and buy one every time something happens because they are so cheap. One thing I've always known is that if you respect it, it will treat you well. Sorry you think your HP is just another cheap TI. Just go buy another one. One other thing HP's are well known for sturdiness, and reliability. 1 GND 2 TX 3 RX 4 Shield What is the function of the 4th? Shield? i think is full functionally with inly 3 pins The shield protects the other three conductors from RF interference. If it is not used the signals traveling through the cable could be altered thus corrupting your data. I've made a couple of cables and none of them have the fourth wire. You might as well hook it up while you're at it though, just in case. The reason I never did was because I found some really cool shielded wire that was really flexible and everything but it only had three wires in it. The bottom line is that with or without the wire, it will work. - http://eng.utoledo.edu/~bgarrets bgarrets@eng.utoledo.edu (Blake T. Garretson) writes: Surely, if it was *shielded* wire, then you should be connecting the 4th wire to the shield. That's kind of what it's for. If it claimed to be shielded but had no connection to the shield then it probably wasn't actually shielded. USRLIB and what is the function of that?, because in the manual says not enough to understand the function of that variable, please somebody replyme For detailed information about performing I/O on the HP48, see http://www.hpcalc.org/docs/programming/ioguide.zip - Converting GROBs to different picture-formats - More file-management functions for the HP (rename, copy, better moving etc.) - Library-management (if makeable...) - Auto-mirroring. This means auto-update of the whole HP-content - Multi-language support - many many more features So here are my ideas, now I'm waiting to hear yours!!! Take the chance, to co-develop an application YOU will use. And please report any bug you found. Even it is a small app, it's impossible for me to detect all kind of errors.... Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit program. For this reason I ask you all: What do you expect from a good, simple HP to PC transfer program? What kind of features you would like to see? What bugs did you find etc.... moving etc.) report any bug you found. Even it is a small app, it's impossible for me to detect all kind of errors.... I managed some years ago to make a cable to connect my HP48 to a PC. It is still working well. I would like now to connect to a MAC. I found any kind of usefull diagrams on Netscape but it doesn't work, the HP constantly displaying : Invalid Server Cmd.. Could someone give me some hint, please ? I just put this up, check your pinouts and check how you set up your connections: http://www.bme.unc.edu/~hope/linx/mac/mac-hp48.html HTH! - Joni Here's the correct pin mapping, taken from the cable that I got with my Mac connection kit. ---. ,--- /// / // SHIELD / | +A +B +C | | | 0 1 2 3 | | ,-----------------------. | +D +E +F | | ** ** ** ** | Front View | | | ** ** ** ** | | | `-----------------------' _ +G +H _/ | | ._______________________. /// | SHIELD | --------- | | .---------------------------. | | | | Top View -------------- | | -- Brian Stone stone@StoneEntertainment.com From: spamless@nil.nil Subject: Re: hp48 to mac cable Newsgroups: comp.sys.hp48 Lines: 21 X-Newsreader: TIN [UNIX 1.3 unoff BETA release 961022] NNTP-Posting-Host: 207.240.140.100 X-NNTP-Posting-Host: 207.240.140.100 Date: 27 Feb 99 16:18:18 GMT Organization: The Internet Channel ... heck ... ASCII does not specify special values, such as EOL markers). Check your settings (do NOT monitor the CD line: use software flow control (XON/XOFF) instead of hardware: use XMODEM or Kermit: try changing configuration parameters in the Mac software). reaction How ? If you know the answer please let me know. Thanks already chemical Have a look at ChemLab. http://www.geog.ubc.ca/~amoy/ These claim to do so: Maybe we could replace this whole newsgroup with a message board at hpcalc.org ? I think HP should pay Eric for running it (and subsidize the CD-ROMS :) ----------------------------------------------------------- Can XModem be used to IR transfer data from HP to HP? I've seem it used only between HP to PC transfers... Thanx a lot! _________ Rising his wings, Hiryuu can feel the cold morning breeze, can smell the far away scent of the spices mankind so loves... And enjoys it... But men is blind to this beauty of nature and magic... Pursuing a fake glory, men strive to kill Hiryuu, and everything else in their way... Can XModem be used to IR transfer data from HP to HP? I've seem it used only between HP to PC transfers... Thanx a lot! _________ Rising his wings, Hiryuu can feel the cold morning breeze, can smell the far away scent of the spices mankind so loves... And enjoys it... But men is blind to this beauty of nature and magic... Pursuing a fake glory, men strive to kill Hiryuu, and everything else in their way... The pros use Kermit and the cons use XModem :) Okay, let's compare: XModem: G-series only, Binary transfer only, faster, no checksum. FXRECV program on receiving calc (never use it on rom R). Kermit: Binary or Ascii transfers (ascii means UserRPL text only), slower, *can* check each packet's checksum (if enabled at each end). Glitch: If you send a file from HP48 (any G version) using XModem, then transfer file to another HP48 (rom A thru P) using Kermit, you will get a string which must be fixed with FIXIT or OBJFIX (see the FAQ). Kermit in rom R was fixed, can receive files using Kermit which had originally been sent with XModem. Sure, if both are G series; the physical carrier (light or wires) is unrelated to the data content (protocol); just be sure that both calcs agree as to which of each they are using. Do not use the Send to HP48/Get from HP48 G-series applications for this, since those applications are hard-wired to use Kermit. ----------------------------------------------------------- Unless there's something I'm missing I believe the XMODEM protocol has a 1 byte checksum at the end of each block of data as follows: ...my hp goes down irreperably!!! I have store a library in my hp on the '0' port and then i saw that the hp 48 sx doesn't work anymore. I have disarded either the battery and the memory card, and reinsert them. The hp is on stall. Hi, i'm looking for a good editor for hp-programming, the one i have is for dos, HPShell, but it doesn't work well with my codepage, even if i've changed it... So, windows95 is my O.S. and i would like to have an editor. answers in my mbx, thx!! I've been doing some more programming (with appropriate apologies to the family!) 1) I have learned a few of the ins and outs of the PAROUTERLOOP, but I would like to make as much memory available to the calculator to limit garbage collection, etc. on the 48G I hope to be able to make it work on. My preliminary idea uses a series of menus, in which up to 3 loops could be nested before the actual choice of programs is run. How much memory does each loop use in temp memory? RPLMAN says it is possible to use the PAR utilities to run the loops consecutively provided error checking is provided. How much memory is saved, compared to the extra programming required to provide it? 2) Are there any memory savings in using GLOBAL as opposed to compiled local variables? Donnely says (page 94) SAFESTO keeps a copy of the object in temporary memory (as opposed to temp ob for STO, what the heck is that?!) Does this mean under some conditions global variables do not use temp memory, and if so when? Here's what it says on its body: IBM Armonk, NY NOM 9.6V 2.8AH P/N 41H8165 FRU P/N 41H7438 OPTION P/N 38H6304 NICKEL-METAL-HYDRIDE and the bottom: P/N 41H8136... was in a new IBM ThinkPad 365X. I want $55 plus $5 shipping as the new BTI costs $110, and a genuine IBM as this would be even more expensive). E-mail to Stanis@prodigy.net I've done $1,200 in Internet deals over the past year and will provide references if required, if for any reason not satisfied, return the battery and get your money back 100% less ATWJ44A@prodigy.com Selling since my ThinkPad365X is constantly powered off AC, and use another ThinkPad560 as a mobile. Usage: been a store demo for 6 months before i bought it, no usage since then (on AC power), however did notice lower on-time comparing to specs... apprx 40 mins as opposed to specified 2 -2.5(?) hours probably due to Maximum settings at the time, i now use Minimum (min clock speed, brightness, HDD and LCD turn-off times, etc.) should be over 2 hours OK but too lazy to install the battery and check the runtime again. These instructions are solely for re-arranging the Solve equation application (input form) fields, as we recently discussed. The list which you specify does not get saved into the EQ variable, which is the only permanent place where it might have been kept, had the application programmer elected to do so. Even if you insert your own list, as instructed on the next page of the User's Guide, the application seems to ignore it anyway, so the opportunity for a feature was lost in both places. Sit, Rover! Stay! Good Dog! Immediately following in the User's Guide, on the same page you referenced, is an alternate way to do so; you simply trade-in the full-screen form for a menu-based interface; then you can tailor that menu in any way you like (order the variable menu keys, add other menu keys, etc.) As an extra added bonus, you even get some increased speed :) Same benefit occurs when you trade in Windows interfaces for well-designed commands and scripts, although the users little suspect it ('scuse me, The solver normally displays the variables in the order in which they appear in EQ. symbols, then start your program with a list of variables in the order you want them and then drop them with DROPN, the variables will always appear in the order listed at the beginning of your program. You can even introduce irrelevant variables if you like. ON-D Short pins 2-3 PROG U-LB OK observed When the pins are shorted through the old mouse cable I receive the message U-LB 20000. Any ideas on what this means ? Or where I can find out ? Thanks Novice 48G'er Bryan Are there any hp42s newsgroups? I need to change the tolerance/step for integral graphing on my HP48SX. i tried to change the RES in the PPAR variable to #2, as suggested in the comp.sys.hp48 FAQ with no visible speed increase. my friend with a GX said that his PPAR variable contained a STEP object that he could change to speed up integrals, however, the SX doesn't seem to have it. is there any way to speed up graphing on the SX??? panicking before major test, sorry but i have a GX .... but I'm intresting about changing the RES in the PPAR; can you help me ....can you tell me how your friend has done ?? When I set an alarm on my HP 48 G+ I don't get a BEEP when it gets active. Although flags -57 and -56 are both cleared. In the manual I can't find nothing els about it. I would like to use an editor that use a codepage for some characters, the codepage is 437, i am using the cp 850 and i tried to change it in the cp 437, my pc still not recognizes the new cp and so i can't use the editor. If you have an easy editor, without any problems to visualize the characters of my hp-48sx send me a copy in my mbx, i will very glad to receive it and i need it very soon. If you are talking about the HPShell you can of course use the Editor in *ANY* codepage. It is just, that it can display the most amount of mathematical characters in codepage 437 only. This is a DOS regulation and not an own definition by HPShell. I also use the 850 codepage and be happy with it. Just press the Don't check anymore button when getting the codepage error message. Again: THE HPSHELL WORKS FINE IN ANY CODEPAGE ! http://www.wellige.com http://hpshell.wellige.com I find you program usefull but.. have you tried the HPdev program ? (available at: http://www.inforoute.capway.com/brebisso/hpdev.zip ) This tool is a complete HP development environnement for those who want to use the HP supported syntax (I mean HP tools syntax). It seems to be quite hard to start with this program but it seems to be one of the best too. I have had a look on that program. You're right, when intending to write HP48 programs in assembly language or SysRPL this program should be the first choice. For simple UserPRL programs it might be to difficult i.e. to confusing. I am not sure if the HPShell does a better job nowadays where most people are only able to use Windows programs. But some time ago I had decided that this isn't my problem and stopped porting the program to Windows and released the HPShell as Freeware. http://www.wellige.com http://hpshell.wellige.com is it possible to use HPShell with a customized character set ? There is a program named 48b changing the character set of the computer to a perfect 48 set, but after starting HPshell, Dos-Word 5.5 or Turbo Pascal 5.5, the characters have changed back to their original state! The only editor which changes not the set is that of Norton Commander, although not very comfortable. Printing programs with a 48 set is no problem for me, I have written a printing program (simple minded in its basic features) which emulates the 48 set by exploiting several special sets of my printer. It is dependend on a special hardware (needs a HP Deskjet xxx with a VERY OLD AND RARE Prestige-Elite font cartridge). Therefore it is not of general interest here. (?) At all, it would be very nice to use HPShell with 48b and that printing program. I would be gratefull for any hints to do than above is my opinion olny. I dont know nothing of official about these new calcs. Stefan.Ehlen@saw.rwth-aachen.de wrote: Carlos Marangon HP48 for beginners! http://www.geocities.com/~hpfb http://members.xoom.com/hp48fb -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- The following URL http://www.hp-shop.de:80/hp/gratis.asp?mscssid=169199 shows a bigger picture and names the model as a HP 6S (scientific non-RPN model with two solar or dual-power versions) I found nothing about this at www.hp.com, does anybody know how old this model is ?, or its price ? Bye ---------------------------------------------------------------------- I search for a cheap 128k RAM card for a hp48SX. Could someone help me? JM Ps: i'd like to find it in France if possible. ---------------------------------------------------------------------- Strange. Can't believe that there was no official announcement from HP telling that they introduced a new calculator model. Must be brand new - all official calculator web pages at HP don't have a link to the 6S ... From the pictures the two models look rather cheap - hopefully HP will produce a HP-48 successor in the known HP quality! What do *you* think? Stefan. (Have a look at the new HP-6S at HP's German Web site at http://www.hp-shop.de:80/hp/gratis.asp?mscssid=169199) ---------------------------------------------------------------------- Wouldn't it be sad if that was the only new HP calculaor they have in mind? Barry ---------------------------------------------------------------------- Date: Sun, 07 Mar 1999 01:14:37 +0000 Organization: UpUnet-S X-Mailer: Mozilla 4.5 [en] (X11; I; Linux 2.0.31 i586) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.sys.hp48 Subject: Spectral factorization Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: regulus.its.uu.se X-Trace: 7 Mar 1999 02:07:03 +0100, regulus.its.uu.se Lines: 7 Lines: 8 NNTP-Posting-Host: annex3-21.cc.umanitoba.ca X-Trace: canopus.cc.umanitoba.ca 920776218 28582 130.179.153.133 (7 Mar 1999 03:10:18 GMT) X-Complaints-To: Postmaster@cc.umanitoba.ca NNTP-Posting-Date: 7 Mar 1999 03:10:18 GMT X-Newsreader: Microsoft Outlook Express 4.72.3110.1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Xref: ionews.ionet.net comp.sys.hp48:86071 just out of curiosity, does anyone know what microprocessor is used in the hp 48g? thanks kapil ---------------------------------------------------------------------- X-Trace: wwproxy.vcd.hp.com 920924685 13332 15.36.131.112 (8 Mar 1999 20:24:45 GMT) X-Complaints-To: news@news.vcd.hp.com NNTP-Posting-Date: 8 Mar 1999 20:24:45 GMT X-Mailer: Mozilla 3.01C (WinNT; I) Xref: ionews.ionet.net comp.sys.hp48:86226 Kapil Sakariya wrote: Hello, Kapil (and the denizens of comp.sys.hp48). Two responses were close but not quite right. One said it was an NEC Saturn CPU. One said it was a Saturn CPU manufactured by HP. The HP48 uses the Saturn CPU, as someone correctly stated without elaboration. HP designed the Saturn CPU specifically for use in calculators. The chips that contain the Saturn CPU and other logic blocks were originally manufactured at HP's integrated circuit facilities in Corvallis Oregon and elsewhere. The particular IC used in the HP48 is manufactured by NEC, and contains the CPU core along with other circuitry. Good Day! Dave. ------ I don't speak for HP when I post here. ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86134 On Sat, 6 Mar 1999 21:03:22 -0600, Kapil Sakariya Benoit is right... Apologies Topshape ---------------------------------------------------------------------- It's a NEC Saturn cpu at 4Mhz 210+ Benoit Darcy (zdar on IRC) - HP48 E-zine, PCteam, Performance Calcul. ____________________________________________________________________ HP48 E-zine, le premier magazine 216lectronique des passionn216s de HP48 L'info HP48, mise 210 jour quotidienne http://hp48ezine.tsx.org [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OS lash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] ---------------------------------------------------------------------- Newsgroups: comp.sys.hp48 Subject: Re: what microprocessor is in the hp48g? Date: Wed, 10 Mar 1999 16:21:55 +1100 Lines: 38 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.0810.800 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.0810.800 NNTP-Posting-Host: hpiw0272.aus.hp.com X-Trace: 10 Mar 1999 06:21:52 +0100, hpiw0272.aus.hp.com X-Disclaimer: All opinions expressed herein are of personal nature and do not reflect the opinion of third parties. It's a 64/8/4 bits which means: the internal registers are one 64 bits. The external bus is an 8 bits bus. The internal bus is 4 bits. The main advantage of the Saturn CPU, is that it has a very low power consumption and is very efficient on BCD calculation. Jean-Yves news:36e2b68b.26385120@news.nordnet.fr... ---------------------------------------------------------------------- What's BCD calculation? ---------------------------------------------------------------------- Jemfinch02 wrote: Binary Coded Decimal: The representation of a decimal number (base 10, 0 through 9) by means of a 4 bit binary nibble. Here's the difference between binary and BCD: BINARY: 153d = 99h = 10011001b which is stored in memory in 4-bit chunks called nibbles (or nybbles), like this: ... --+------+------+ ... | 1001 | 1001 | ... --+------+------+ BCD: ... --+------+------+------+ ... | 0001 | 0101 | 0011 | ... --+------+------+------+ Thus each decimal digit occupies precisely one nibble of memory. Many CPU's have a BCD mode in which arithmetic is performed not in strict hex (in which 9+1=A) but in decimal (9+1=10). This allows BCD math to run very fast since it's implemented in the microcode. BCD math fits HP's philosophy of what you see is what you *got*. Unlike most computers and most other calculator brands, HP never lies to you and tells you that the answer is something other than what it got (unless you *want* it to lie, by putting it into FIX 2 mode or the like). Such honesty is difficult for a non-BCD calculator, since not all binary or analog results can be exactly represented in the small number of decimal digits of a calculator display. Tt. Here's what it says on its body: IBM Armonk, NY NOM 9.6V 2.8AH P/N 41H8165 FRU P/N 41H7438 OPTION P/N 38H6304 NICKEL-METAL-HYDRIDE and the bottom: P/N 41H8136... was in a new IBM ThinkPad 365X. I want $55 plus $5 shipping as the new BTI costs $110, and a genuine IBM as this would be even more expensive). E-mail to Stanis@prodigy.net I've done $1,200 in Internet deals over the past year and will provide references if required, if for any reason not satisfied, return the battery and get your money back 100% less ATWJ44A@prodigy.com Selling since my ThinkPad365X is constantly powered off AC, and use another ThinkPad560 as a mobile. Usage: been a store demo for 6 months before i bought it, no usage since then (on AC power), however did notice lower on-time comparing to specs... apprx 40 mins as opposed to specified 2 -2.5(?) hours probably due to Maximum settings at the time, i now use Minimum (min clock speed, brightness, HDD and LCD turn-off times, etc.) should be over 2 hours OK but too lazy to install the battery and check the runtime again. Stanislav Starinski Call me undisciplined, but I don't bother to format C code as I write. I use INDENT periodically as I go. ( It's actually a good way to catch bugs as you see how the code is interpreted.) User RPL is less structured, so it's not really a big issue. But what's annoying is when you start a program in HPShell, modify it on the HP, and upload it back to the PC - it's a mess. Is there something like INDENT for the HP? The closest I found was STR80, which does not work for source code or do any formatting. -- edDELfasula@bigfoot.com Remove the 3 letters DEL to mail me. After months of messing with my COM port settings in windows and playing with jumpers on my modem I finally got disgusted enough to build another cable, and sure enough, I figured out that my *HP Cable* has an intermittent problem. But my purpose here is to exclaim how easy it was to build a new cable. I heard some mice have the right connector (here), and I was lucky enough to have an old mouse that I could just pull the cover off and pull out a perfect 4 pin HP style connector. I cut the PC end off the mouse cable, it didn't have the pins I needed. I cut one end off of an old serial cable and spliced the two cables together following the wiring diagram from http://www.hpcalc.org/docs/faq/48faq-12.html (I used a flashlight battery and bulb to find the wire that corresponded to the pin I needed.) OK, so in 20 minutes I have the set of 4 wires twisted together and soldered into a 10 foot HP cable. The best part is this: I read posts from people who used epoxy at the HP end to protect the wire connections and make it fit in the slot just right. Well, since I had my old HP cable, I took a clump of my Boy's Play-Doh and pressed the connector into it. Then I put the little mouse connector in the same spot and added some 60 second flexible epoxy from Ace hardware. It bonded to the outside of the mouse cable and the little connector, and made a perfect form of the official HP connector. It even has the 3 little grip ribs! I didn't get everything precisely placed, but with a little easy filing and trimming with a razor while the epoxy was still soft, I got it to fit just like the official cable. I was amazed. The only thing I wonder is, if my HP cable died, how long will this one last? The mouse connector may not be designed for all the in and out action. On the other hand, it appears that this type of connector has no 'spring', the pin just slides into the slot, not susceptible to wear. Which makes me think that my HP cable may simple be dirty in the receptacle. I tried soaking it in vinegar to no avail. Can anyone comment on these points? The values of variables must be real in the solver. It chokes on complex values. -- I'd suggest solvesys by Sune Bredahl. It is small and fast and can deal with complex numbers. You can find it at http://www.gbar.dtu.dk/~c947086/hp48.html I succeed with my notebook (TOSHIBA Satellite 200) using Hyperterminal (in Windows/Accessories group). It seems that 2400 bauds is the right rate to use (I tried more but it doesn't work). i am using everything you suggest except String Writer 4.4. could you explain the advantages of using this with the other two programmes? String-Writer is a old but powerful string editor much better then the built-it provided by HP. This editor is nice but takes lot of place though. That's why you may want to use Miniwriter or Eden instead. This is not necessarily for you to use a string editor but if you have to write a lot of things, get it. :) Ps: By the way the 4.3 version of String-Writer is much more fast than the 4.4 Maybe they are libraries, so you have to store them to the port 0: - Put the game into the stack (by pressing the corresponding variable button) - Turn your HP48 off and on - Type: shift-right 2 Then you see the menu with all libraries installed. This works like the normal variable menu. If you need more help, just ask. bye, Sven http://beam.to/hp48network You may read the help about game's installation on a HP48G(X) available at Eric's HPcalc website: http://www.hpcalc.org The section I'm talking here is: http://www.hpcalc.org/install.html I dont know, what does this program do? If the variable contains a directory, then use PGDIR instead of PURGE. You can program in your own calculation, of course, but there is a built in TVM command which sets up a money calculation in the current directory. You can do separate calculations in separate directories and keep the results of as many as you have memory for. Your manuals should explain the TVM command. TVM stands for the Time Value of Money. If you are used to these calculations and to the SOLVER, you can probably figure out how to use it without instructions. I wrote a little program in system rpl and used rplcomp to compile it in to a .a file. I sent that .a file to my hp and it happened to be a string version of my program, but not an actual compiled binary. How do I actually compile my program with rplcomp? I compiled the source file with rplcomp, then created the object file with sasm, then made the supposed binary with sload. transferring the binary to the hp (gx) yields another string. i can't actually get the program to run. Are you sure you inserted ASSEMBLE NIBASC /HPHP48-X/ RPL in the beginning of your program? (For details, and what this means, see RPLMAN.DOC) http://move.to/hp48g My solution involves using a basic stamp and a DS1620. Its not the most ideal(cheap) solution but it works. Check it out here: http://www.geog.ubc.ca/~amoy/ Hi, i'm seeking the program DMPTOMEM for PC, to use the captured text of my HP48 ROM. thanks! ----------------------------------------------------------- are allowed in High School Advanced Placement tests and on the SAT, please be advised that the list in your official booklet from The College Board is *obsolete*. Be sure to check out the current list on their website; some lists have added the TI-89 (and perhaps others) since the booklet was published. Go to http://www.collegeboard.org/bin/iaquery and search for calculators, or go to http://www.collegeboard.org/ap/students/subjects.html and then go to the subject of your choice. Those subjects which allow or require a graphics calculator include the HP 48 series and the HP 38G in their lists of allowed calculators. No mention of the HP 58. :-( That's the hypothetical name used by the readership of this newsgroup for the hypothetical successor to the HP48. Whether or not there will actually be a sucessor at all, and furthermore what its name will be (especially considering today's announcement of the breakup of Hewlett Packard into two separate companies) is known only to those who are prevented from talking about it by company policy. In other words, if anybody knows, they won't tell. Conversely, if anybody tells, they're just blowing smoke. HP employees have been known to cackle uproariously or to give a silent stare when asked about such things. It's all part of the game. Thank you for playing. it's great, but it has the same limitation my real HP48GX has--only 128k of ram. How do I add a ram card so that i can run all the programs i'd like to? more than a year. I am currently taking AP Calculus BC (which is equivalent to college calculus 1 and 2) and AP Physics. I need to know what algebra system (s) is the best for my situation. It seems I should use Alg48 or Erable, but I don't know whether to use just Erable (seems good, more complete than Alg48, but I have no idea what the side libs are for ie. prep.lib, geo.lib...) or use Alg48 and some combination of other programs. I'm mostly concerned with finding a good symbolic integration utility (I need to show up all the TI-89 fans at my school). Currently I have only the 128k of ram that comes with the GX, but I hope soon to buy a Cynox 1 mb ram card. Until then, though, what algebra systems would be best for me? For your situation I would probably recommend Erable. ALG48 is better (mostly faster) for algebraic manipulation, and for stuff like the AHSME and stuff, it's usually a slightly better choice, but erable is significantly better when you are doing hard-core calculus work. If I were you, until you get more memory, I would go for ALG48. If you try to load both it and ERABLE with only the memory you have, you won't have enough memory for many complicated calculations, and the learning curve for ERABLE is much worse than that for ALG48. -- does anyone know where I can buy a 48GX for really cheap. Is there any place in the US I can find it for about $100 to $150. www.jandr.com HP calculators, but no options Best source is HP Direct themselves, I've used them for Advanced manual and cables, but misplaced their phone# ... too lazy to search,ask someone else Ack! make a search at completed auctions (you can do this every now and then) for 48GX, and list them out by ascending price - you regularly don't save more than $10-$20 over a new calc ($175+). Great if you want to get rid of you '48, not too smart if you want to buy one. Just make sure you keep tab on your bid limit. ionews.ionet.net comp.sys.hp48:85856 hi, I want to create a formula to calculate the angle between two vectors. the formula is angle=arcos[vectorA DOT vectorB / abs(vectorA)*abs(vectorB)]. 'VecAng(a,b)=arcos( a dot b / abs(a)*abs(b) )' or thelike doesn't work. unfortunately I am unable to integrate the DOT (In MATH/VECTR) into the above formula. Can anybody figure out how to solve my problem? greetings, jan In the HP48, DOT is classified as a command, rather than an algebraic function, hence you can't include it in a formula. You can, however, write your VecAng function as an RPL program instead; if you want your program to be accepted as a function in other algebraic formulas, structure it as Then store this program in a variable named 'VecAng' See Local Variables and User-Defined Functions in Chapter 29 of your HP48 G-series User's Guide (near page 29-18) You can't use vectors in equations in that way. But you can access to elements of a vector using brackets: a(1) gives the first element of a. You have to expand the DOT and ABS function: 'arccos((a(1)*b(1)+a(2)*b(2))/((SQ(a(1))+SQ(a(2)))^0.5*(SQ(b(1))+SQ(b(2)))^0 http://beam.to/hp48network I also noticed that Logitech mice have 6 pin 2 mm connectors, which could also be adapted. No soldering or crimping here! Well, I got a Logitech Cable... but I have a doubt. It has a 6 pin connector, that I can cut the 2 two out for it to fit)... experiences out there? Also, is this thing Y2K compliant? Thanks :) I also noticed that Logitech mice have 6 pin 2 mm connectors, which could also be adapted. No soldering or crimping here! But I have not found out any info about which 3 of the 6 pins are really it here, so that someone may have a use for it in the future... and I hope someone put this on the HP48 FAQ, for it is a valuable resource to many... Logitech Pin Layout: PC End (RS232-9) Mouse End (6 pin connector) pin 5 pin 1 ------------- pin 6 _ _ pin 1 | o o o o o | __| |___| |__ o o o o / | o o o o o o | --------- --------------- pin 9 pin 6 HP to PC Cable goes like this: HP48 | RS232-9 | 6 pin connector -----+---------+---------------- 1 | - | - 2 | 2 | 2 (Black) 3 | 3 | 4 (Brown) 4 | 5 | 1 (Orange) You can take the pins out of the Mouse End with a needle or some other thing to lift the plastic cover WITH NO DAMAGE TO IT, SO YOU CAN USE IT LATER, since they are locked with a hook like this: MMMMMMMMMMMMMMMMMMMMMMM MMMM MMM Plastic Cover MMM | MMMM MMMMMMMMMMMMMMMMMMMMMMM | MMMM _________________________| ___ | Pin | -------------------------------- MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM After you took out all the pinhus BCD is a good choice for calculator math. Hope this helps. -Joe- -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-Complaints-To: usenet@smithers.eaglequest.com NNTP-Posting-Date: 10 Mar 1999 22:40:12 GMT X-Mailer: Mozilla 4.5 [en] (WinNT; I) X-Accept-Language: en,pl Xref: ionews.ionet.net comp.sys.hp48:86257 joehorn@usa.net wrote: This is incorrect. BCD number can be converted to binary of the same memory footprint without accuracy loss. Actually BCD number requires more memory for the same accuracy so in a long chain of calculations it has more round - off error than binary. BCD in reality is not only less accurate but also is a waste of memory. The only advantage of BCD is that it is simpler to format for display and that is precisely why it is used in outdated calculators. Jack ---------------------------------------------------------------------- HP, TI, Casio.. all use BCD math: all outdated? The 'simpler to format' may be true, but is not the reason: HP has had a few calculators displaying polar numbers *in the display* while for the human eye not to notice. Now, I *would* like to see a new object type 'IEEE-754' single and double precision in 'the new HP'. IEEE-754 double precision takes 64 bits (the same as a BCD real on the 48), but offers almost 16 digits of precision, be it with a slightly reduced exponent range. Best Regards, Werner Huysegoms Reply-To: werner.huysegoms@dgx11.cec.be remove the x before replying -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-Complaints-To: usenet@smithers.eaglequest.com NNTP-Posting-Date: 11 Mar 1999 23:03:28 GMT X-Mailer: Mozilla 4.5 [en] (WinNT; I) X-Accept-Language: en,pl Xref: ionews.ionet.net comp.sys.hp48:86314 werner_huysegoms@my-dejanews.com wrote: Yep. Wasting memory and speed is today outdated :-) In case of TI89/92 it is actually a CRIME :-) Check specs of Motorola 68000 - TI92 CPU to compare power and speed for BCD versus binary coding speed and you will know why. Today many CPU either ignore BCD or implement very slow, primitive subset of BASIC BCD operations for die hard users. The delay of HP display is highly visible to the user even with BCD :-) True, conversion is fast in reality but it does take time and memory. I suspect, that BCD is dinosaur of the old calculator era, when every byte of memory counted. HP28 - 48 had enough power to be binary but it's designers probably just went the old way. Jack ---------------------------------------------------------------------- Jacek Marchel wrote: Nope. 0.3 in BCD takes very little space, and is exact. In binary it's infinitely long and/or inexact: 0.3d = 0.01001100110011001100110011001100110011001100110011...b There are, of course, infinitely many such examples. True. But that's a different philosophical goal. If the goal is what you see is what you got, then BCD is appropriate, as shown above. -Joe- -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- X-Complaints-To: usenet@smithers.eaglequest.com NNTP-Posting-Date: 11 Mar 1999 22:57:01 GMT X-Mailer: Mozilla 4.5 [en] (WinNT; I) X-Accept-Language: en,pl Xref: ionews.ionet.net comp.sys.hp48:86313 joehorn@usa.net wrote: That is general opinion but untrue. The example, you have shown is true for most of the binary computer codings because they use exponent of 2 instead of 10. That is in fact recommended coding for most computers but not the only one possible. You can use binary mantissa that is matched with binary coded decimal mantissa. It is still way more efficient than BCD in memory footprint and in accuracy matches exactly BCD coding (actually eceedes BCD because within same memory it stores more data) as a WYSWYG. Jack -- +-------------------------------------------------------+ | Anna i Jacek Marchel | | | | e-mail: marchel@eaglequest.com | | WWW: http://www.eaglequest.com/~marchel | +-------------------------------------------------------+ ---------------------------------------------------------------------- X-Complaints-To: usenet@smithers.eaglequest.com NNTP-Posting-Date: 11 Mar 1999 23:06:05 GMT X-Mailer: Mozilla 4.5 [en] (WinNT; I) X-Accept-Language: en,pl Xref: ionews.ionet.net comp.sys.hp48:86315 Jacek Marchel wrote: Sorry for the typo. -------- Should be: binary coded DECIMAL EXPONENT. Jack ---------------------------------------------------------------------- X-Sender: 024138139-0001@t-online.de X-Mailer: Mozilla 4.5 [de] (Win98; I) X-Accept-Language: de-DE,en Xref: ionews.ionet.net comp.sys.hp48:86231 Jemfinch02 schrieb: It describes the way you store information in a Nibble and calculate with them. If you only use the decimal numbers from 0 to 9 instead of 0 to 15 in one Nibble. ( BCD = Binary Counted Digit. The Nibble are only 4 Bits.) # Example: BCD: 27 + 34 = 61 ----------------- 0010 0111 + 0011 0011 = 0110 0001 |||| |||+- 1 ||+-- 2 |+--- 4 +---- 8 7 = 1+2+4 HEX: 27 + 34 = 61 ----------------- 0001 1011 + 0010 0010 = 0011 1101 |||| |||| |||| |||+- 1 |||| ||+-- 2 |||| |+--- 4 |||| +---- 8 |||| |||+------ 16 ||+------- 32 |+-------- 64 +--------- 128 27 = 1+2+8+16 # Table: ------ BCD: 0000 = 0 0001 = 1 0010 = 2 0011 = 3 0100 = 4 0101 = 5 0110 = 6 0111 = 7 1000 = 8 1001 = 9 ------ HEXadecimal: 1010 = 10 A 1011 = 11 B 1100 = 12 C 1101 = 13 D 1110 = 14 E 1111 = 15 F ---- |||| weight |||+------ 1 ||+------- 2 |+-------- 4 +--------- 8 Michael ---------------------------------------------------------------------- them. Nibble. I believe BCD is the acronym for Binary Coded Decimal. Barry ---------------------------------------------------------------------- X-Sender: 024138139-0001@t-online.de X-Mailer: Mozilla 4.5 [de] (Win98; I) X-Accept-Language: de-DE,en Xref: ionews.ionet.net comp.sys.hp48:86318 Barry Marks schrieb: Yes! :-) Michael ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86090 On Sat, 6 Mar 1999 21:03:22 -0600, Kapil Sakariya It is a Saturn processor, manufactured by HP.... Topshape ---------------------------------------------------------------------- The microprocessor used in the Hp48g is the Saturn microprocessor. If you wish more technical information about it, just e-mail me at: shoyo@intervista.com.br and I will see what I can find about it. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own ---------------------------------------------------------------------- Xref: ionews.ionet.net comp.sys.hp48:86075 On 1 Mar 1999 23:40:53 GMT, dst12345@aol.com (DST12345) wrote: The intern program of the TI is very nice..... I think it is better than the HPs progz..... CU ---------------------------------------------------------------------- Talmente semplice che 217 come un gioco, un gioco fantastico che pu230 per230 avere il potere di cambiare la vita, la nostra vita, che 217 preziosa! Il tempo perso non si pu230 pi235 recuperare! Per ci230 quando mi 217 arrivato questo messaggio ho pensato: e[AHat] l'occasione che aspettavo! Vuoi saperne di pi235? Rispondi Subito !!! ---------------------------------------------------------------------- My new e-mail address is: sunhp@via.ecp.fr Bye, Julien ---------------------------------------------------------------------- (but http://home.nordnet.fr/~bdarcy works always fine) 210+ Benoit Darcy (zdar on IRC) - HP48 E-zine, PCteam, Performance Calcul. ____________________________________________________________________ HP48 E-zine, le premier magazine 216lectronique des passionn216s de HP48 L'info HP48, mise 210 jour quotidienne http://hp48ezine.tsx.org [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OS lash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] ---------------------------------------------------------------------- This project requires all your attention !!!! I've made a banner in order to put in your WWW pages with this link : http://www.multimania.com/shellos Thanx to put this in your page and please send me feedback about this at : bdarcy@nordnet.fr 210+ Benoit Darcy (zdar on IRC) - HP48 E-zine, PCteam, Performance Calcul. ____________________________________________________________________ HP48 E-zine, le premier magazine 216lectronique des passionn216s de HP48 L'info HP48, mise 210 jour quotidienne http://hp48ezine.tsx.org [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OS lash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] [OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSl ash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash][OSlash] ---------------------------------------------------------------------- Newsgroups: comp.sys.hp48 Subject: Transfering files via the IR port Date: Sun, 7 Mar 1999 13:09:24 -0500 Organization: newsread.com ISP News Reading Service (http://www.newsread.com) Lines: 18 NNTP-Posting-Host: hd-ts02-05.iconn.net X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.0810.800 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.0810.800 Xref: ionews.ionet.net comp.sys.hp48:86083 I have a Toshiba Satellite laptop with an IR port. I would like it up so that I can transfer files between my HP48 and the laptop. I have already installed the drivers for the IR port on the Toshiba, but it doesn't recognize when the calculator is within range of the IR port (a detection utility that does this is included with the drivers). Does anyone have any ideas on what I am doing wrons, you can cut out the ones you won't use. If you want, you may cut the plastic shell into a 4 pin plastic shell, so that it fits your HP. The way you will cut it is up to you (!), but take good care of it, or it may be destroyed... Then, it's only put the 3 useful pins back in the right position to get a Thanks for comp.sys.hp48 for all support! Written by Hiryuu - Wagner Volanin Bicalho - ICQ 9851103 _________________________ Raising his wings, Hiryuu could feel the cold morning breeze, could smell the far away scent of the spices mankind so loves... and enjoy it. But men were blind to this beauty of nature and magic. Pursuing a false glory, men strived to kill Hiryuu, and everything else in their way... Palmtop PCs and HP 48 Connecter / Adapter Kit Contains 4 adapters to connect Palmtop PCs to Desktop PCs, modems and printers. (Three 9 to 25 pin for printers, PCs and modems, and one 9 to 9 pin Null modem cable) NEW $20 plus shipping what this means for the calculator division. Will calc go with the test equipment and instrumentation group or the computer group? Also, the 48 line has been around for a few years now. Is there any work being done on a next generation? What're Bill Wickes and his buddies up to? - imo, since HP had booted out calculators from their T&M catalog 3(?) years ago, I might imagine that the calc division would come under the umbrella of Personal Systems Group (of the 4 groups mentioned in the press release). *sigh* my thots on this (reorg) wrt to re-naming the T&M division? It's diluting the strength of the HP name-brand - at least for those who smile fondly that their calculator, HPC, PPC, PC, or whatever shares the same (perceived?) heritage (and robustness) of their $60k spectrum analyzer, atomic clock, etc. Ironically (but to no surprise), the PC division's hijacking the HP name made famous by their T&M products (at least that's the first thing that comes to mind when you pop the HP name to me). Peter Khor That's interesting; I didn't know they had reorganized. A regular here may know more. OTOH a post by Dave Arnett did a nice job of explaining why the people who know (can't / won't / don't have to) say anything. Have you checked HP's site for press releases? By now this topic is pretty fruitless. The work's being done in Australia. The Crovallis group disbanded. I'm not sure if Bill is even involved these days. That's all I know. Unfortunately that's about all you'll hear on this group (except for speculation and wish lists). If you're frustrated, you're not alone. But this is apparently the way it is. Just heard this morning on CNBC, and confirmed at HP's web site, that HP is planning to split up into two companies: one devoted to PC/Printing/Imaging, and the other to legacy business such as test equipment/medical equipment/etc. No mention of the calculator division was made, but since this was indeed a legacy product line, my guess is that calculators will be folded into the new measurement company. The name Hewlett-Packard will be retained by the (much larger) PC division, with the measurement company having to find a new name--therefore, any calculators coming out of this new company will *no longer* be called HP, but something else!! Very sad that the products that Messrs. Hewlett and Packard first made, and that gave rise to HP as a company, will now be stripped of the HP name... PCN There have been rumors about such change for a while, with very specific articles in the financial press for the last day or so. This change was formally reported to employees via a company-wide broadcast at 9:30 (PST) this morning. It was not clear from the material I heard and have read whether the Australian Calculator Operation will be part of Hewlett-Packard or the newly-formed and to-be-named company. (Packard-Hewlett? Hewie II? Bill-Dave?) I spoke with folks in ACO's North American Marketing Center, and their place in the Great Divide was not clear to them either. I think it is a simplistic reading of the announcements to say that 'legacy' is the deciding characteristic for which product lines end up in which company. I am looking forward to further details on this (very significant) decision by the Board. Calculators haven't been a part of TMO (Test & Measurements Operation) for many years but are like pocket - and other - computers. So they'll still be HP. As you say, though, the market that created the company will be served by TMO under a new name. Maybe Bill And Dave's COmpany, or BADCO. (Insert standard smiley emoticon here) Or maybe they'll pretend the famous nickel landed the other way and be Packard-Hewlett? entry etc - since I have used HP. On a whim I purchased TI89 thinking the KB problems has to be fixed by now. Only some things i life get better. I have an iMac which has an IrDA port. Does anyone know how to get the HP to communicate with the computer? I've tried Apple works but as far as I can tell there hasn't been much support added to use this port in other programs. In Apple works I'm given many options but I'm not sure how to change them to make them work. Jason Hmm, look inside your own HP48 S/SX. Must be soldered to the main board somewhere... :-) My GX has 50k left on it.......But Calculus III is coming.... Do you all have RAM cards to run Erable? Erable 3.2 (absolute address version), the PREP library for it (still don't know what it does...anyone have some sort of english documentation on it?) and EQstack installed, and I have 22.6k left. After some not-so extensive testing, I think erable is better for high school calc (1 and 2) than Alg48. Will this printer work with an hp42s? the Thaddeus Computing Palmtop Paper site, and I noticed that they and it works GREAT with my 128K upgraded HP48G. I just thought folks might want to know... I built a cable using a soundcard cable and a DB9 connector, and I must say that I prefer the cable I paid $10 for... :-) Here's the URL... On the left, click on the Connectivity link under ACCESSORIES, and you'll see the listing for the cable on the page that pops up: http://www.palmtoppaper.com/ == From In[109]:= abc t I have bought an HP49G and when I booted it for the first time I receive this message: Try to recover memory? I answered yes and now every time I booted the calc (ON-D and after Q) I receice a warning Invalid card data. Also, the full rom test failed (the calc says me there is an object with bad CRC). However the calc seems to work correctly. I don't know if this is a serious problem and what I have to do. Does someone can help me?!? Thank you, Best regards Francesco Uras The first time you start the HP49G, you will get the message: 'Try to recover memory' as the memory is in a corrupted state. You have to press NO (since there's nothing to recover anyway). If you press NO, the HP49 will run the command PINIT automatically. If you answer YES, the calculator will parse the whole memory in order to recover some lost objects. But the Extended RAM won't be initialized. So you will always get the message: Invalid Card Data. To fix this problem, simply run the command PINIT. Jean-Yves ---------------------------------------------------------------------- I do not know why you would be missing WS2_32.dll since I downloaded that a little before you posted the message, and it told me some message about KERNEL32.dll. It turns out that when I deleted the dll you're apparently missing, it started working on my Win2k machine. So for the person who was saying it wasn't working on their NT machine, try deleting that, it might help. And try re-extracting calc.exe. If it doesn't help, you're not out too much, it doesn't catch mouse-clicks very well, and it's rom is VERY old. According to version it is B-D I'm guessing that to be Beta-D ---------------------------------------------------------------------- The application is certainly looking for WS2_32.dll (as well?), as after temporarily removing it, it came up with an error trying to look for the missing dll (WS2_32 is to do with windows sockets, so I am not sure what it has to do with the emulator - unless there is a URL link built-in). Did that (with WiZ instead of the self-extractor). No difference. I hope the one on the free CD is better behaved :-) - and works with standard .flash roms (or however one gets them from the calc). BTW, anyone else noticed that the ROM image included (at least I assume that is what rom.E49 is) is 4M - when the real thing is only 1M! Actually, I can't even find out where SetHandleContext is meant to be defined - it doesn't seem to be listed in the MSDN references (did an online search and on a new-ish CD copy) - any ideas? ---------------------------------------------------------------------- The real thing is 2 Mbytes, although about 1 Mbyte is reserved for the user (port 2). The emulator obviously has to emulate all 2 Mbytes. Inspection of the file reveals that YORKEM only stores one nibble (four bits) per byte, hence half of the file is effectively wasted. This would make sense for the in-memory format for maximum performance, but I'm astonished that the author didn't have the emulator simply expand the file when it is read, to reduce disk requirements and make it work better with other development tools. ---------------------------------------------------------------------- Sorry about the three postings. My email software reported the send had failed twice before I remembered that my ISP had recently changed their email SMTP server address. I them updated the address and the post was successful. Apparently the two prior sends did work after all. All this had nothing to do with the Windows Socket 2 update I performed to make the HP49 emulator to work. : ---------------------------------------------------------------------- But under NT4, there is still a problem, as WS2_32.DLL is installed, but the undefined link error persists (by the look of it the orginal version, 4.00). BTW, tried this on several NT4 systems with the same result. Anyone know of a reference on MS's site to any updates for NT to solve this probem? ---------------------------------------------------------------------- calculator. Please note that altough the author of the two emulators is the same (Sebastien Carlier), they have nothing to do, they are two distict programs. Right-clicking on the emulator's window opens a menu, where you can save/load the state, send files to the emulator and do some other things. ---------------------------------------------------------------------- Well, it would seem reasonable wouldn't it ? But I see one advantage to that behaviour : you may create several status files for different modes or types of work that you do, and you don't have to change the flags to go from, say, simple arithmetics to CAS to SysRPL, etc. -- Thierry Hautem-Morissette thmorissette@videotron.ca o0SC3.15$v96.579@news.callamer.com... ---------------------------------------------------------------------- that types say, This could also be done even if the last state was loaded at startup. The emulator for the 48 loaded the last state and allowed one to load and save different states as well. After reading similar posts to mine, I believe there is simply a bug that needs correcting. -- ---------------------------------------------------------------------- ---------------------------------------------------------------------- Why does the HP 49G emulator need Winsock? I wouldn't have expected it to open or use any internet connections. Is it reporting information on the user back to HP? Yes, I know I'm paranoid. It's not that I think HP is out to get me; I've just found too many programs that do this kind of thing. Nowdays I actually have my firewall set up to block outgoing connections that are suspicious. ---------------------------------------------------------------------- I have no idea why the HP49 emulator requires a Windows Socket 2 update. I suspect it has something to do with a library call within this DLL and nothing to so with Sockets functionality itself. Sincerely, Steve Simpkin Eric Smith wrote: ---------------------------------------------------------------------- ??? -- would you care to name just one program that establishes subrepticious connections and tries to send data unbeknownst to you? Melissa doesn't count. ---------------------------------------------------------------------- The new version of the emulator will be available soon on the HP web site. The actual version requires winsock to run. The reason is that this emulator open a telnet interface in order to be driven by an external program. With this interface you can simulate key-press, download programs etc (perfect for automatic testing purposes)... It will also integrate the latest ROM v1.10 and not an early beta B.D This should be available tomorrow or Thursday Sorry for the inconvenience. ---------------------------------------------------------------------- emulator With (perfect Mind telling us more about that? How to access that server, its commands, etc? -- Eduardo M Kalinowski mailto:ekalin@iname.com http://move.to/hp48g ICQ 10944368 Sent via Deja.com http://www.deja.com/ Share what you know. Learn what you don't. ---------------------------------------------------------------------- I was joking, but have you used windows update under win98? While you're updating your computer, microsoft opens a new browser which says windows will tell you what updates apply to your machine's configuration while no information about your computer is being sent to Microsoft. Now tell me, how is it that they know which programs are on your machine and which aren't if you aren't sending them any information? I know for a fact that just in order to register for this service, a value within your registry is set to 1... but they don't tell you this. In fact, they take it one step further and lie to your face. ---------------------------------------------------------------------- And I'd love to know when they are going to release an ELF, a.out, or compilable source! ---------- I also encountered the error message missing WS2_32.DLL when attempting to run the HP49 emulator. The HP49 emulator requires Microsoft's implementation of the Winsock 2 programming interface. Winsock 2 is a separate, add-on component not included with basic Windows 95. It is part of Windows/NT 4.0, but I believe that you must have the TCP/IP network components installed to have winsock 2 support. You can fix this problem by downloading the Windows Socket 2 Update from Microsoft at: http://www.microsoft.com/windows95/downloads/contents/wuadmintools/s_wunetwo rkingtools/w95sockets2/default.asp NOTE: The above update is for Windows 95 ONLY! I assume Windows 98 comes with this DLL. After installing this update and re-booting my computer, the HP49 emulator ran OK. It appears that when you exit the emulator and re-start it, it performs a memory clear. You can right click anywhere on the calculator to bring up a menu which, along with other choices, will allow you to save the state of the machine. When saving the state of the machine, ignore the fact that the dialog box is labeled Open. Just type in a name and save it. Sincerely, ---------------------------------------------------------------------- You may want to try J and R- http://www.jandr.com/ I believe they have the 49G in stock (check on the web or call them to verify). Dave Baum ---------------------------------------------------------------------- I tried out the HP49G at my local university bookstore. I absolutly did not like the feel of the keys. They were stiff. It took a good amount of pressure to depress the keys. They do not have the feel of my old HP41CV that I really like. I was looking forward to the new 49G but I have decided not to buy it because of the keys. Rh. ---------------------------------------------------------------------- Will any larger system fonts be available for the 49? My eyesight is not that great, even with glasses( Astigmatism) and larger fonts would be great. Also is there any way to get a four level stack and larger fonts size in RPN mode? ---------------------------------------------------------------------- ---------------------------------------------------------------------- reason you That's what was said. But since the supported DID change, something that goes contrary to the above, from the HP48 to the HP49, I was asking if at least in the HP49G they would remain constant. The entries in that released list HAVE changed from the ROM that is shipped with that emulator. That ROM is old, though, and was not released to the public. ---------------------------------------------------------------------- points OK, the supported entry points have changed from the HP48 to the HP49G. But considering only the HP49G, what does supported means? Will these addresses remain constant in all ROM versions of the HP49G or will they change with every new ROM upgrade? ---------------------------------------------------------------------- points It seems there is a minor error in that table. The entries for the x