A133 >> One designed according to the needs of the majority of potential > users, perhaps, rather than experts? > Well, that's how the HP49 keyboard got designed, with mainly input from > teachers ...and then someone decided to market it as a scientific, programmable, graphing calculator for professionals in math, science, and engineering (to quote the product overview)? That would explain a lot; the layout seems reasonable for educational purposes. ==== > Why stop there? Make the keys square, and you can have *four* shifted > functions around the sides. In PPCCaJ V11N1p49-50, Richard Nelson discussed how to increase the number of functions per key: (Under PPC-44 Keyboard Notes) http://library.hp41.org/LibView.cfm?Command=Document&ItemID=216&Start=52&End=53 Very interesting despite being written in 1984, that is: before the 18C softkeys. PS: BTW, folks - any advice on how to stop reading the PPC Journals and I printed and binded all of them (more than 4000 pages), I cannot read anything else! Well, until I finish printing the Key Notes ... ==== Why stop there? Make the keys square, and you can have *four* shifted > functions around the sides. In PPCCaJ V11N1p49-50, Richard Nelson discussed how to increase the number > of functions per key: (Under PPC-44 Keyboard Notes) http://library.hp41.org/LibView.cfm?Command=Document&ItemID=216&Start=52&End =53 Very interesting despite being written in 1984, that is: before the 18C > softkeys. X Multiple User Modes was the best thing that I found there! We could have only one shift key on the jeyboard if it would recycle left arrow - right arrow - both arrows (frontal slope text) - none ==== > ...and then someone decided to market it as a scientific, > programmable, graphing calculator for professionals in math, science, > and engineering (to quote the product overview)? That would explain > a lot; the layout seems reasonable for educational purposes. I dispute this concept that students needing an advanced calculator have different needs than engineers. Well, OK, business math students need something different, but they're not the target market for engineering calculators. When I was in high school and college, the HP-41C family worked just fine for me as a student, and it continued to work fine in the real world. I wouldn't have wanted a dumbed down for students calculator. And if you want educational materials that aren't needed by everyone, those can be loaded into RAM or flash. But doing things like making fewer functions easily accessible from the keyboard, or making use of fewer colors or colors with less contrast for the shift functions to make it look more friendly does NOT help either students or engineers. I don't want a calculator that tries to be my friend, and that wasn't what I wanted as a student. I wanted a calculator that had powerful capabilities to help me solve problems. The HP-41C/CX/CV, HP-28C, HP-28S, and HP-48SX have all done that for me at different times, and if I considered them friends, it was because of what they did, not because of any attempt of the designers to dumb them down for students. The HP-48GX was less useful to me due to partial colorblindness; the green and purple shift legends look too similar to me, except under bright illumination. I learned which was which with a little time and practice, but that shouldn't have been necessary. Even my friends with normal color vision agree that the choices on the G series were bad. This is what happens when you get the wrong people into marketing focus groups. The colors were chosen because some idiots thought they looked nice, not because they were practical. ==== How do I diagonolize a matrix on my hp49g? Anders ==== How do I diagonolize a matrix on my hp49g? Enter the matrix (A) and use EGV. You get the eigenvectors and the corresponding eigenvalues. Then S^(-1)AS = D where D is a diagonal matrix with the eigenvalues as diagonal elements and S is a matrix whose column vectors are the eigenvectors of A in the same order as their corresponding eigenvalues forming D. If the original array was n x n, you can enter {n n} and use DIAG-> to transform the vector of eigenvalues to an actual matrix. Theory says that this is only possible when A has n linearly independent (don't know if this is the proper english term) eigenvectors but the calc seems to check this by itself since otherwise you get an error msgbox with the text EGV Error: Matrix is not diagonalizable. When using numeric matrices beware that there are caveats to the problem of determining eigenvalues and -vectors. I don't know how good the calc's algorithm is. ==== > Enter the matrix (A) and use EGV. You get the eigenvectors and the > corresponding eigenvalues. Then S^(-1)AS = D where D is a diagonal matrix > with the eigenvalues as diagonal elements and S is a matrix whose column > vectors are the eigenvectors of A in the same order as their corresponding > eigenvalues forming D. If the original array was n x n, you can enter {n n} > and use DIAG-> to transform the vector of eigenvalues to an actual matrix. Can you make an example :-)? Eg. you wanna diagonalize: 1 -3 4 0 Anders ==== is it a beta (you know with auto-off after prgm run;-), or a production unit? Raymond I am yet to see substantial evidence that HP is returning to the > advanced calculator market. The 9G are a bad joke and it appears > the 49G's are no longer available in Australia. WElll, I thi n k tthat teh hP12 C PT that i' M holdinng inn my hhansd > (... let me put it on the table while I type) is a pretty substantial > evidence. Some people start wars with less evidence to justify them :-) Jordi > -- ==== > is it a beta (you know with auto-off after prgm run;-), > or a production unit? The latter - s/n CN313 bought at educalc.net (not the same as EduCALC ;) Good service indeed. I'm preparing a review for the next Datafile, but if you need some info before buying, just let me know. Jordi PS: That bug was fixed ... unfortunately! It would be a nice collector's item. :) ==== unfortunatly thehp site is a maze like, laberynthic site to search for any item! http://h20015.www2.hp.com/en/product.jhtml?reg=nam&cc=us&pagetype=hp49ggraph 24252&lc=en and yes the model hp 49g is no longer made and there are no trace of documents, 48GX is able because thirty party producers of blank-RAM/software-ROM cards will die if it is discontinued. (just look the ROMcard dedicated to calculate an oil tank of a oil transporter ship) bye ==== How do you type in lower case on hte 49G? I am trying to access the tetris game by typing in HpMad under the EQ box in Plot Setup. It won't pull it up when I type in HPMAD Thanxs in Advance, CID ==== [ALPHA] [LEFT-SHIFT] page 2-9 of manual Dave > How do you type in lower case on hte 49G? I am trying to access the > tetris game by typing in HpMad under the EQ box in Plot Setup. It > won't pull it up when I type in HPMAD > Thanxs in Advance, > CID > ==== > How do you type in lower case on hte 49G? I am trying to access the > tetris game by typing in HpMad under the EQ box in Plot Setup. It > won't pull it up when I type in HPMAD even try the easter-egg tetris. These are caricatures, not really games. If you like a Win-like tetris version load Tetris by D. M.9fller & Raymond Hellstern. If you like a more intelligent tetris version where you are fighting with growing complexity and not with growing speed, load TETRI by WR. It has only 2 KB while most of the others have at least 5 KB. - Wolfgang ==== I've used rpn on an HP forever. If I want to square a number I go: 12 /enter/* to get 144 I've just got an HP 48g. No manual. The first thing I noticed is that I must go: 12/enter/enter/* to get 144 Am I missing something - apart from the manual? Something to do with command line.perhaps. TIA Steven Young -- ___________________________________________________ Steven Young & Associates Limited Consulting Engineers P O Box 6168, Wellington, New Zealand Web: http://www.stevenyoung.co.nz Cell: 021 932 352 Intl Cell: 64 21 932 352 ==== the first thing is to get a user manual, which will show you how to use the 48G, and which points out the differences between classic HP RPN calculators with a four-level stack, and the HP-48 series with an unlimited stack. Please visit www.hpcalc.org for the manuals and MUCH more information and software, and maybe www.hpmuseum.org for information on even more HP calculators. Here's a direct download link for the Owner's manual as zipped PDF: http://www.hpcalc.org/hp48/docs/misc/hp48gug.zip You could even use a query to get some more: http://www.hpcalc.org/search.php?query=owner+manual&hp48=1 Raymond Steven Young schrieb im Newsbeitrag > I've used rpn on an HP forever. If I want to square a number I go: 12 /enter/* to get 144 I've just got an HP 48g. No manual. The first thing I noticed is that I must go: 12/enter/enter/* to get 144 Am I missing something - apart from the manual? Something to do with command line.perhaps. TIA > Steven Young -- > ___________________________________________________ > Steven Young & Associates Limited > Consulting Engineers > P O Box 6168, Wellington, New Zealand Web: http://www.stevenyoung.co.nz > Cell: 021 932 352 > Intl Cell: 64 21 932 352 ==== Yes, it is because of the command line. on simpler calculator (like a 12c platinum for example :-), there is no command line, and as you enter a number, it directly modifies the level 1 of the stack. the HP48 has a command line in which you can type things that might not always end up on the stack (for example: a command :-), or a number. it also allows you to modify the number you are typing, or completly change your mind and not do anything. on a simpler RPN calculator, for example, if you start typing 1, you already pushed the stack and eventualy destroy stack level 4. There is no way for you to undo it. this is not the case with a 48. in short, with extra power comes extra complexity. it's a balance. have a good day, cyrille > I've used rpn on an HP forever. If I want to square a number I go: 12 /enter/* to get 144 I've just got an HP 48g. No manual. The first thing I noticed is that I must go: 12/enter/enter/* to get 144 Am I missing something - apart from the manual? Something to do with command line.perhaps. TIA > Steven Young -- > ___________________________________________________ > Steven Young & Associates Limited > Consulting Engineers > P O Box 6168, Wellington, New Zealand Web: http://www.stevenyoung.co.nz > Cell: 021 932 352 > Intl Cell: 64 21 932 352 ==== > have a look to > ftp://ftp.math.fu-berlin.de/pub/usr/raut/hp49/ > in time/timeman Wolfgang provides another man which is > typical a synonym for a program which realy supports > the user :-) Timeman > allows doing this in a pleasant graphic environement which consist of > invoked with Timeman's most important commands Dset and Tset. These can > conveniently be toggled inside their environements and are described in > Section 1 which concerns also the 3rd command Noon displaying the actual > noon meridian on a word map... with HTML-docu. Many thanks to Wolfgang and best wishes > Heiko ftp://ftp.math.fu-berlin.de/pub/usr/raut/HP49/time/Timeman/ Problem: I expect that the Timeman calendar gets the day of week right, but there seems to be a problem with leap years. In all years divisible by 100, the calendar shows 29 days in February. Years divisible by 100 are not leap years, unless also divisible by 400. Of course, I haven't yet made any plans for the year 2100.... Minor problem: The choose box displayed by FxT? partially covers the FxT date and time. Very minor problem: If autostarted to the Dset, Tset, or Noon displays with low batteries, then the menu is displayed, covering the bottom of the graphic display. I think it would be better if I:nfo on the Dset and Tset displays were changed to I: info Perhaps the Noon display would be more useful if the world map included the Pacific? But I don't know, I suppose that that would squeeze the shapes of the land horizontally and introduce more distortion. I wouldn't want to lose the date and time header. I like the SUNCLK application by James Elliott on Goodies Disk 5. I guess that I can always run it as a separate application; it seems to me that it should work on a 49G, as long as none of its global names duplicates any command name. I prefer Eric Postpischil's TIMEKEEP for automatic clock adjustment, even though it's a UserRPL directory. Because it calculates the adjustment on the fly instead of using a fixed daily adjustment, I can easily set the alarm to run the adjustment at whatever times and intervals I choose, or even not have it run by an alarm at all, and can simply execute KICK to have it adjust the clock immediately. But on the 49G, the lack of a built-in seconds display for the clock makes it a bit clumsy to see the exact time while adjusting the time when calibrating TIMEKEEP. I guess that I should look around for an application that accurately displays the time to the second and still lets me use the stack and VAR menu programs. I can see that even for a UserRPL application, TIMEKEEP could use a bit of optimizing, but it does work as intended. It was posted in 1990, and I suppose that we were all relatively newbies on the 48 back then, so I think that he deserves a lot of credit for this application. If you care to have a look at TIMEKEEP, see the version in the UTILS directory of Joe Horn's Goodies Disk 9, available at: http://www.hpcalc.org/hp48/compilations/horn/ (but note that the documentation is in a separate file in the root directory). The version at: http://www.hpcalc.org/hp48/utils/time/ is corrupt because he uploaded it with his calculator set up with Kermit ASCII translation option 2, so characters over 159 weren't translated, and apparently, somewhere along the way the eighth bit was lost. I notice that the Cuco alarm runs (silently, and I expect faster) even on the hours that aren't in the list. This can be somewhat disruptive when I'm trying to use the calculator. I expect that this could be improved by using a non-repeating alarm which sets a new alarm to run at the next hour at which the sound is desired. Since a control alarm puts its index on the stack before executing the alarm object, we can use it as an argument to DUP RCLALARM SWAP DELALARM to put the current alarm on the stack and delete it from the alarm catalog, then modify the alarm time and/or date to the next hour in the list that the user supplied, and then use STOALARM to set it to run again. Of course, computing the next time looks a bit tricky in UserRPL because it may be the next day, but it's certainly possible. Using SysRPL, I expect that you could simplify all of this, perhaps even directly modifying the alarm list in the hidden directory. Or perhaps using SysRPL you could use a repeating alarm but modify the rescheduling. Both the Cuco and RepA alarms are silenced (and, I expect, run faster) by using Aact, but they still run, perhaps disrupting normal use. I expect that it should be possible to have a program set them back to a previous time when we don't want them to run, and when we want them to run again, set them ahead to the next time that they should run. But this would require that the Cuco and RepA alarms be identifiable in a list that may contain other alarms. Turning the calculator off at the end of the alarm is nice for saving batteries, but a bit disconcerting when I'm using the calculator. I wonder whether there's a way to determine whether the calculator was already on when the alarm started, and if so leave it on. I don't know how much more time and effort you care to spend on Timeman, or for that matter how much it would increase the size and complexity of the library to use my ideas, but consider them as suggestions. Comments or suggestions from anyone else? James ==== > ftp://ftp.math.fu-berlin.de/pub/usr/raut/HP49/time/Timeman/ > Problem: I expect that the Timeman calendar gets the day of week right, > but there seems to be a problem with leap years. In all years divisible > by 100, the calendar shows 29 days in February. Years divisible by 100 > are not leap years, unless also divisible by 400. Of course, I haven't > yet made any plans for the year 2100.... The leap-year problem is caused by a havy bug in HP49 ROMPTR B5 A8 inherited from the HP48. This will be fixed. Please note that the bug has no influence on the number of days of februaries in the legal date setting interval from begin 1991 till end of 2090. Since Timeman allows virtual date browsing from the begin of the Gregorian calendar till 9999 such bugs become now appearant. > Minor problem: The choose box displayed by FxT? partially covers the FxT > date and time. OK, this problem only arises with your choose boxes not set in minifont. IMHO, setting flag -90 should be the default since this makes browsing (in particular flag browsing) easier. Fortunately, this was not your default, otherwise this would not have been discovered. Will be fixed. > Very minor problem: If autostarted to the Dset, Tset, or Noon displays > with low batteries, then the menu is displayed, covering the bottom of > the graphic display. Well, this is unavoidable since the low battery state creates a menu by force. Timeman should then be finished to refresh the batteries :-) > I think it would be better if I:nfo on the Dset and Tset displays were > changed to I: info Ok, accepted. > Perhaps the Noon display would be more useful if the world map > included the Pacific? But I don't know, I suppose that that would > squeeze the shapes of the land horizontally and introduce more > distortion. I wouldn't want to lose the date and time header. Including the Pacific would make California and Italy so small that one couldn't recognize them as peninsulas on the 48/49 screen :-) I know, americans living close to Pacific would prefer if the whole world map were shifted somewhat direction west. But I had to find a compromise to include Japan and Australia into the map. > I prefer Eric Postpischil's TIMEKEEP for automatic clock adjustment, > even though it's a UserRPL directory. Because it calculates the > adjustment on the fly instead of using a fixed daily adjustment, I can > easily set the alarm to run the adjustment at whatever times and > intervals I choose, or even not have it run by an alarm at all, and can > simply execute KICK to have it adjust the clock immediately. But on the > 49G, the lack of a built-in seconds display for the clock makes it a bit > clumsy to see the exact time while adjusting the time when calibrating > TIMEKEEP. I guess that I should look around for an application that > accurately displays the time to the second and still lets me use the > stack and VAR menu programs. I can see that even for a UserRPL application, TIMEKEEP could use a bit > of optimizing, but it does work as intended. It was posted in 1990, > and I suppose that we were all relatively newbies on the 48 back then, > so I think that he deserves a lot of credit for this application. May be. But I doubt whether any clock setting tools in UsrRPL could be better than the precise graphic time-setting tools of Timeman. > I notice that the Cuco alarm runs (silently, and I expect faster) even > on the hours that aren't in the list. This can be somewhat disruptive > when I'm trying to use the calculator. I expect that this could be > improved by using a non-repeating alarm which sets a new alarm to run > at the next hour at which the sound is desired. Since a control alarm > puts its index on the stack before executing the alarm object, we can > use it as an argument to DUP RCLALARM SWAP DELALARM to put the current > alarm on the stack and delete it from the alarm catalog, then modify the > alarm time and/or date to the next hour in the list that the user > supplied, and then use STOALARM to set it to run again. Of course, > computing the next time looks a bit tricky in UserRPL because it may be > the next day, but it's certainly possible. Using SysRPL, I expect that > you could simplify all of this, perhaps even directly modifying the > alarm list in the hidden directory. Or perhaps using SysRPL you could > use a repeating alarm but modify the rescheduling. This proposition is difficult to realize and may cost some 500 additioal bytes. Would that be OK? > Both the Cuco and RepA alarms are silenced (and, I expect, run faster) > by using Aact, but they still run, perhaps disrupting normal use. This is true. Most active applications keep waiting before a due alarm is executed. The main problem is the running 49-editor which does not like certain user-made control alarms. Both the Cuckoo- and the Repalarm contain the important SysRPL command AppMode? which asks whether an application mode is running. If yes, the alarm will run silently without turning the screen off. But the HP49 editor mode does not like the command AppsMode? in a control alarm and reacts very badly. Perhaps a bug in the OS. JYA may not have noticed this because he may expect that all control alarms are written in UsrRPL which does not know such a question Is another application running? As a matter of fact, UsrRPL doesn't provide any means of global control on the HP48/49. > I don't know how much more time and effort you care to spend on Timeman, > or for that matter how much it would increase the size and complexity of > the library to use my ideas, but consider them as suggestions. Comments or suggestions from anyone else? Yes, it would be nice if more people participated in testing Timeman. I worked hard on it, in particular on keeping it small. Besides you, two other 49-fans, Heiko Arnemann and Otto Praxl, spend a lot of time in testing but didn't notice some of the problems mentioned by you. Wolfgang ==== X > I know, americans living close to Pacific would prefer if the whole > world map were shifted somewhat direction west. But I had to find a > compromise to include Japan and Australia into the map. How about two maps? Or a scollable wide screen? I would prefer a scrollable widescreen map! X > This proposition is difficult to realize and may cost some 500 additioal > bytes. Would that be OK? You utilities for the huge 256KB 49G RAM are so small that for better usability less than 0.5 KB sounds ridiculous. For the HP 48GX situation may be different...you just have to load X > Comments or suggestions from anyone else? Yes, it would be nice if more people participated in testing Timeman. I > worked hard on it, in particular on keeping it small. Besides you, two > other 49-fans, Heiko Arnemann and Otto Praxl, spend a lot of time in > testing but didn't notice some of the problems mentioned by you. Bummer! I didn't notice anything! PS: Any changes of getting a special version of the KeyMan where HP 41 Assignment identification and nullifying is duplicated? Shift&Hold looong would just recall the 49G OS shi&hold assignment (or show on status) double click would do the same on normal displays I'm sure you know what I mean. *OTHERS* feeling that this Key41 would be a nice addition? ??? ==== James M. Prange schrieb > I like the SUNCLK application by James Elliott on Goodies Disk 5. I ... > I prefer Eric Postpischil's TIMEKEEP for automatic clock adjustment, I appreciate your comments, as a developer of time keeping tools. There seem to be a lot more to explore dealing with clock adjustments. best wishes Heiko ==== > Both the Cuco and RepA alarms are silenced (and, I expect, run faster) > by using Aact, but they still run, perhaps disrupting normal use. I > expect that it should be possible to have a program set them back to a > previous time when we don't want them to run, and when we want them to > run again, set them ahead to the next time that they should run. But > this would require that the Cuco and RepA alarms be identifiable in a > list that may contain other alarms. The identification of a single alarm is no problem, e.g. by its CRC. The problem is to identify a whole class of alarms. To avoid this problem, Cuco is running every hour, but silently and extremely fast with nearly no power consumption at not wanted hours. The only alarm which has to be identified is the automated adjustment alarm AAA for clock calibration. This is readily done by its execution time 3:14:15AM because it's highly unlikely that somebody sets an alarm in the night at pi o'clock. > Turning the calculator off at the end of the alarm is nice for saving > batteries, but a bit disconcerting when I'm using the calculator. I > wonder whether there's a way to determine whether the calculator was > already on when the alarm started, and if so leave it on. The real problem is not whether the calculator is off or on, but whether the user is doing something useful on the calc in the very moment when the alarm starts. In other words, the alarm itself *must* know whether some application is running. Good examples of being in an application mode is being in the interactive stack or in the filer. In these cases the command AppsMode? inside the alarm program yields this information and hence may run empty without disturbing the application. That works excellent in all existing applications, except the edit mode. A serious handycap. Perhaps JYA points a way out of the problem. Funny enough, for message only alarms the editor behaves correctly, i.e., the alarm anounces itself in time and keeps waiting. You then have the choice to carry it out immediately or not without affecting the current command line. - Wolfgang ==== > I am doing a proyect for my college, and i need to transmit and > receive some non-kermit information beetwen the serial port of the > HP48G and a PC. I have lots of information about the UART (registers, > address, etc.), but i don't have detailed information about the > procedures or entry points to acces the 255-buffer, also i didn't find > source codes or examples. The buffer is at #80319 on the G series, its size is 256 bytes. #80519 holds the number of available chars (2 nibbles), #8051B holds any error code (1 nibble). #8051C holds where the first available character resides (2 nibbles). So you should take the byte at #8051C, multiply it by two, add it to #80319, and read (#80519) bytes of data, then substract the number of bytes you read from #80519. You should also disable interrupts while reading #80519, substracting, and writing back. For sending, I don't think any ROM routine will help, but writing into UART registers is fine : wait until (=TCS) is 0, then write char on =TBR. Samuel Thibault ==== > CALC for the 49G! Who is the first to try? CHPC member #2: http://hrastprogrammer.tripod.com/HP71X/ CHPC #9 :) ==== WAU! BUT I was hoping for a HP 49G Command line integration of CALC Something like shift&hold ENTRY, which would start CALC Actually while occationally using the ALGebraic Mode I wouldn't mind it being the default Command Line Environment CALC for the 49G! Who is the first to try? CHPC member #2: http://hrastprogrammer.tripod.com/HP71X/ CHPC #9 :) ==== I've seen an ancient 'Root-Locus' question that was related to this, but no answer. My HP 49 has fw version 1.19-6, flags: { #120018685018FF4h #0h #809000400A020818h #0 } It looks like the plotting function jumps ahead to the decision that a function result is a complex number and tag it as 'undefined'. Try for example to plot the function: 1+RE(SQRT(X)), using the default plotting windor values. (it's a silly one, but the minimum necessary to see the problem)(SQRT is V/, but can be ^.5, the result is the same) Although the result of this function is always a real value, the plot only shows up for positive X values. If you look at the value table (Lshift+F6), you'll see 'undef.' for negative Xs. My conclusion is that the plot routines see a imaginary result for the intermediate value SQRT(X) function, and just jumps to the next iteration, although the final result will be a Real. Plotting 'IM(X*i)' works fine, so it seems like the problem is triggered by particular functions only, not by the presence of a complex value alone. I did browse this NG for similar cases, and already tried -3, -119, and other flags changes, and QUOTE() the function. Nothing helped. Is this a bug, or is it just right but beyond my comprehension? Joao ==== J.Manrique Lopez de la Fuente a .8ecrit dans le > See this post in the Museum Forum: > > http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/forum.cgi?read=33334 And of course, the news in new HP Calculators Webzone: > http://www.hp-calculators.com/company/news/index.phtml There you can read this from Fred Valdez: Later in the year, look for > powerful new offerings in our engineering and scientific models, which > will include graphing, expanded memory for storing complex equations, > greater programmability and connectivity. These models will be offered at > several different price points in order to give our customers more options > and more value. So we should wait and see... What I see is that they don't even mention the HP48 and HP49 on that site > (except on the comparison chart). http://hpstore.ht.com.au/Scripts/xworks.exe?XwsSrvID=H,CAT:HHV#Tof ==== Remember this old post: http://groups.google.com/groups?q=%2212c+platinum%22&hl=en&lr=lang_en&ie=UTF -8&oe=UTF-8&selm=49ed4c.0301100724.469b0ccf%40posting.google.com&rnum=2 It said: With regard to 19BII, aprox. in Julio a new version will come. And in April the new version of 17BII is expected. And a 12C Platinum also comes, for May aprox. As for 49G with Spanish manuals, it is expected that a special production arrives in May. !!** The one that will replace to 49G, aprox will come for August **!! The post was correct RE 12c. Maybe there *is* a 49g replacement after all? I hope so... Al ==== With regard to 19BII, aprox. in Julio a new version will come. Will see And in April the new version of 17BII is expected. April passed and we didn't see a 17BII And a 12C Platinum also comes, for May aprox. This one was true. As for 49G with Spanish manuals, it is expected that a special > production arrives in May. Doesn't have much time left for this one to be verified. !!** The one that will replace to 49G, aprox will come for August **!! > Great! ==== > http://hpstore.ht.com.au/Scripts/xworks.exe?XwsSrvID=H,CAT:HHV#Tof On that website, you'll also find a rara avis: the F1908A, a pack of five coloured bezels for the 30S - first referred to in the 30S press release: http://www.exrom.com/hp_30s_press_rel.htm It seems to be only available through a few sites, which will only deliver Jordi ==== > As for 49G with Spanish manuals, it is expected that a special > production arrives in May. Doesn't have much time left for this one to be verified. Busy? You should have a rest! Ok, I'll verify it for you ;-) But, if you come here, you'll be welcome! You should take a rest in August ;-) !!** The one that will replace to 49G, aprox will come for August **!! Great! If true, that would be really great! --- J.Manrique Lopez Users Club from Gij.97n 1077 HPCC Member ==== I'm presently taking a course that is very strongly geared towards the TI-83. I would nonetheless like to try doing it on my HP48. One of the problems I have come up with is finding the vertexes of parabolas. Using the equation '-2x^2-3x+9', they tell me to use the max/min functions of my TI to find the vertex. Using the EXTR function of my HP48, I get the answer: (10.152739778, (angle)94.236394799). Using a TI's MAX function, I get: (-.7500004, 10.125). The latter is the correct answer. What am I doing wrong / how can I get the latter type of answer from my HP? Steve. ==== Steve, Your calc is in polar mode. Just enter RECT to set the rectangular coordinate mode. Jordi -- ==== Change from Degrees to Radians to get the desired answer This can be done when you start the PLOT or separately from MODES I'm presently taking a course that is very strongly geared towards the > TI-83. I would nonetheless like to try doing it on my HP48. One of the > problems I have come up with is finding the vertexes of parabolas. > Using the equation '-2x^2-3x+9', they tell me to use the max/min functions > of my TI to find the vertex. Using the EXTR function of my HP48, I get > the answer: (10.152739778, (angle)94.236394799). Using a TI's MAX > function, I get: (-.7500004, 10.125). The latter is the correct answer. What am I doing wrong / how can I get the latter type of answer from my > HP? Steve. ==== The HP48 answer is right, but it is in polar notation. Change Coord System in mode menu to rectangular and you get the same answer as you TI. Dave I'm presently taking a course that is very strongly geared towards the > TI-83. I would nonetheless like to try doing it on my HP48. One of the > problems I have come up with is finding the vertexes of parabolas. > Using the equation '-2x^2-3x+9', they tell me to use the max/min functions > of my TI to find the vertex. Using the EXTR function of my HP48, I get > the answer: (10.152739778, (angle)94.236394799). Using a TI's MAX > function, I get: (-.7500004, 10.125). The latter is the correct answer. What am I doing wrong / how can I get the latter type of answer from my > HP? Steve. > ==== I have nothing against BASIC programs but I ussually look for ASM programs if I have the choice. Most of the BASIC programs I use I have written. I think BASIC is better suited for when you need to write a program quickly and you dont have access to a computer. As you mentioned, the fact that anyone can put anything they want in the ticalc archives leads to such contributions as This is my first game, please bear with me, its just a blob that moves across the screen. When you wade through all of that stuff you can find some pretty nice software. I have heard in several places that you are only permitted 2 builds per project. I will try to confirm this on the TIFS support board. Many programs require the hw2patch if you have a hardware version 2 calc and use a 2.xx AMS. The hw2patch has not yet been upgraded to be compatible with AMS 2.08 so many ASM programs will not work. As I mentioned before I like 1.05 because no patching is required. With the new AMS you get a clock, date, some new trig functions, and an application desktop. All of this takes up about 120k of your archive space. Its simply not worth it when you consider that the application desktop does not support ASM or BASIC programs, only FLASH APPS. Also, you can have a clock using a third party TSR that takes up only 1k of RAM. You have to ask yourself, are 6 trig functions and a picture menu really worth 1/6 of my storage space? ==== Evidently you didn't do a newsgroup search about this subject. Wars have been started on this TI vs HP topic. As a fellow student I will give you this advice - A calculator is just a calculator it won't make or break you. I do agree with what some of the others here have said - Give both of them a test drive, try them out, download the emulators, and see which one you like best. Both are excellent calculators. Where the 89 seems to look better and work faster (and is some ways it is), the 49 can be personalized more to suit your needs. There are plenty won't go into detail. That being said, the TI has one big advantage. TI still supports the TI89, where the HP49 seemed to have been dropped by HP like a hot potato. I do not own the TI89, but from what I've read the documentation is pretty good. Whereas, the documentation for the 49 is total crap. If I wasn't a previous owner of HP calcs (HP48G in particular) I would have been totally lost with the 49. To take advantage of the real power of the 49G you have to read this newsgroup and download documents from sites like hpcalc.org. And while these people that support this forum provide excellent information, It's a pain in the ass to have to go online for a question that should be answered in the documentation. Don't get me wrong I love my 49 to death, but If I didn't have any previous experience with HP calculators I would not own a HP49. I would either 1) Buy one the expandable calcs in the HP48G series 2) Buy a TI89 3) or wait for HP to redeem itself with a new professional line of calculators. Sorry to offend any die hard HP fans, but the truth must be told. Dave > electroniacal engineering. I was wondering if buy a HP 49G or a TI 89, > which are the two options that I'm considering. I have used both of > them and the only difference that with my huge ignorance I could > detect were that the TI 89 has more resolution and is faster in many > operations, because I've found an equation writer for the TI 89. And > with graphing capabilities I think the TI has a little more options. I > beg you help to tell me, according with my career, what calculator > would suit me better, considering the functions that the calculators > have. ==== X > the 89 seems to look better and work faster (and is some ways it is), ********************************************************** TI 89 Faster? Have you tried to invert a numeric matrix of, say numbers between -9. and 9. (everything in Real Mode, Approx. Mode) using RANM with { 16. 16. } (remember to check off Step-by-Step) INV TEVAL in my unspeeded 49G using the latest possible ROM and whatever stuff I got there (other flags unknown) 16x16 matrix takes up 256x8 bytes = 2K+the anser the same => 4K 16x16 => s:15.86, then INV back again => s:15.89 new RANM => s:16.01, INV back => 15.77 to make it easier let's say it takes 16 seconds OK, this time I did MEM DROP TEVAL: (memory 16K) 32x32 => s:100.74 or 1min 40s, INV back => s:99.94 or 1min 40s Time to check some other flags: -54 on: Use tiny element -110 on: Large matrices, seems reasonable, another RANM => s:100.495 or 1min 40.5s, INV back => s:100.39 or 1min 40s Let's just say it takes 100 seconds 1min 40s Now this the poor TI 89 can't do because of silly memory limitations It's wimpy and everybody should know it (64K memory for) Going get's ruff, but the tuff get going! 64x64 => s:665.7 or 11min 5.7s, INV back => s:660.76 or 11min 1s new RANM => s:666.29 or 11min 6s, INV => s:661.1 or 11mikn 1.1s Let's say 11min 4 s 128x128 Matrix will take more than hour in a HP 49G so I leave this one out until either TI, HP, Casio, Sharp, Canon or somebody else brings on a faster, better calculator (or SDA) ********************************************************* > the 49 can be personalized more to suit your needs. There are plenty > won't go into detail. That being said, the TI has one big advantage. TI still supports the > TI89, where the HP49 seemed to have been dropped by HP like a hot X And I thought people could read? http://www.hp-calculators.com/company/news/index.phtml ... Later in the year, look for powerful new offerings in our engineering and scientific models, which will include graphing, expanded memory for storing complex equations, greater programmability and connectivity. These models will be offered at several different price points in order to give our customers more options and more value. Another financial model will be released later this year, as well. ... The bottom line is that HP calculators are here to stay and they are going to be better than ever, giving our customers more than ever. Sincerely, Fred A. Valdez General Manager, HP Calculator Division, PSG Big-Brother-Peter (I'm watching you! - or...just getting fatter) ==== First of all, I would like to say that none of my next statements are meant to be disrespectful to you. I have read and searched through this newsgroup for 5 years (off and on) and I know that you are major contributor to this newsgroup. Your posts have helped me countless times. And you don't have to sell HP to me I've been a faithful user for over 10 years (HP28S, HP42S, HP48G, and HP49G). > the 89 seems to look better and work faster (and is some ways it is), > ********************************************************** > TI 89 Faster? Yes, if you use look-up tables over algorithms in general you will get your answer faster. And in a classroom environment the TI's are faster, that's from my experience with a TI83 and HP49 in Pre-Calculus last semester (The TI83 is currently listed on eBay so I won't be able to give my opinion on TIs and HPs in Calculus). Algorithms make the HPs more capable, but that's another flame war. That being said, the TI has one big advantage. TI still supports the > TI89, where the HP49 seemed to have been dropped by HP like a hot > X > And I thought people could read? http://www.hp-calculators.com/company/news/index.phtml > ... And I thought you could too (respectfully, of course). I did not see the HP49 mentioned anywhere in your link. I know HP still makes calculators. However, since the HP49 they haven't made anything worth buying IMHO. When they do I will be one of the first people in line to buy one. And I go back to my statement in the previous post. A CALCULATOR is just a DUMB OLD CALCULATOR! Choosing one over the other is not some life altering event. I saw my first graphing calculator in 1989 in AP Calculus in high school (I didn't start college until recently, but that's irrelevant to the story). I believe it was a Casio. Anyway, one of the students in my class got it and I thought it was the coolest thing. But, it didn't help him much. He got a C in the class and failed the AP exam. I got a B in the class and passed the AP exam with a regular scientific calc. NO CALCULATOR will MAKE you into an A student or a top notch engineer. Its only a TOOL, and when it has as many bells and whistles as TI89 and HP49 it almost becomes a TOY. This time around I plan on making an A in Calculus, and I could do that using a SLIDE RULE if I had to.The Best Calculator will never take the place of the human brain (not in my lifetime I hope). I would like to preach some more but I have to go over the Calculus Marathon that I just a good Day! David aka Dave aka dsrome aka whoever the user is on the computer I'm using ==== > TI 89 Faster? Yes, if you use look-up tables over algorithms in general you will get > your answer faster. And in a classroom environment the TI's are faster, > that's from my experience with a TI83 and HP49 in Pre-Calculus last semester > (The TI83 is currently listed on eBay so I won't be able to give my opinion > on TIs and HPs in Calculus). Algorithms make the HPs more capable, but > that's another flame war. Sad, but true! HP seems to sleep on this speed issue. We need a tool that is best in all cases! AND thus if the TI 89 look-up tables beat the HP risch then we need to have a very fast Saturn Turbo III+ > > That being said, the TI has one big advantage. TI still supports the > > TI89, where the HP49 seemed to have been dropped by HP like a hot > X > And I thought people could read? http://www.hp-calculators.com/company/news/index.phtml > ... And I thought you could too (respectfully, of course). I did not see the > HP49 mentioned anywhere in your link. I know HP still makes calculators. > However, since the HP49 they haven't made anything worth buying IMHO. When > they do I will be one of the first people in line to buy one. http://hpstore.ht.com.au/Scripts/xworks.exe?XwsSrvID=H,CAT:HHV#Tof > DUMB OLD CALCULATOR! Choosing one over the other is not some life altering NOOOOOO! It has a soul and good calculators go to calc-heaven. (-; RPN has changed my life. (no smiley here) X > has as many bells and whistles as TI89 and HP49 it almost becomes a TOY. Yes - fascinating math toys they are... X > preach some more but I have to go over the Calculus Marathon that I just Oh! I forgot that all together Brother-Peter PS: Despite your warnings I did not see any disrespect in any of your writings not even a beginning of a flame war, just your opinions (an good such) ==== X > So please, write to HP Argentina. Let them hear what we have to say. > www.hp.com an choose argentina. > servicehpa@hp.com But I can't read a thing there?! Would you like to try Finland so that you understand what I mean... I would gladly write to HP Argentina and verify that I have personally repaired one calculator with a friend, nut do you think that they believe? I am already sending this capasitor problem knowledge together with Argentina problem to other authorities in HP I hope that one day there is a real HP in Argentina, too. In Finland the support nad distribution is done by www.radixoy.com and it seems to be the only serving company left in Finland. They are patient with clients to the extreme and I personally get supriced positively year after another. ==== > >>> >>> > >>> > Is a slide rule worth a 41CX? >>> >>> Mine is a Pickett & Eckel Deci Log Log with a brown leather belt case. >>> The principal use for it was in my last job before retiring. Sometimes >>> when the biology-types were getting to uppity, some of us engineers >>> would stride in with our slide rules strapped - there is a way of >>> walking to make them be noticed. >> >> I didn't see this mentioned ..... >> Ebay has a few slide rules. One can get some sense of worth from >> looking at completed auctions. >> >> Any decent last generation (made in the 70s) log-log rule in good condition >> will cost 50-100 USD. Rarer, or more popular, models easily reach 200-300 >> USD. I'm not talking of rare old collector specimens (well... depends or >> your definitions...), those will get yet another zero digit. >> >> /Lennart I have an In-Law who collects circular sliderules (circlerules?). >These are rare birds and not easy to find, I gather. Every Estate sale >I go to I look for good specimens. I bought an Otis King Cylindrical slide rule (equiv. to a normal slide rule about 1m long) in the 60's for next to nothing. Last one I saw on ebay went for about 200 USD. I've still got mine, hardly ever been used. Sean B ==== >I bought an Otis King Cylindrical slide rule (equiv. to a >normal slide rule about 1m long) in the 60's for next >to nothing. Last one I saw on ebay went for about >200 USD. I've still got mine, hardly ever been used. Sean B There's a good description and photo's with this one on ebay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3221965185&category=414 Sean B ==== Greetings. [Edited for size] >I have an AlgFX 2.0+ and a TI-89 and almost always use the 89. Try getting >imaginary roots of an equation from the MAT screen on an AFX! First of all, although the RUN mode of later model Casio calculators has subsumed the Matrix editor (MAT mode), IMHO it is still called the RUN or RUN-MAT mode, not the MAT mode. Pedantics aside, I don't think it's fair to fault the Algebra FX's CAS mode for not being able to work in RUN (aka RUN-MAT, or, if you insist, MAT) mode, just as I don't think it's fair to fault the TI-92+'s CAS mode for not working in Var-Link mode. I've also heard that the HP-4x calculators do very poorly when in the off mode, yet I will not hold this point against them either. For who knows what reason, Casio calculators feature several distinct operating modes. If you like this arrangement (as I sort of), you can defend it by point out that it gives you two or three calculators in one package, for one price. For example, I was recently using my FX's CAS mode to work on one problem, when I wanted to work on another. I switched to its RUN mode (i.e. non-CAS scientific calculator mode), did my calculation(s), and then switched back to the CAS mode. Absolutely everything was as I had left it. Swell, don't you think? Of course, I can see how the variety of modes might pose difficulties for those utterly without any deductive reasoning abilities, and for those who simply cannot RT(F)M (which is included free with the Casio calculators). ... and list names all start with LIST. For a guy who can't keep track of what mode his calculator is in, I'd think you'd appreciate the hint. BTW, in CAS or Algebra modes lists, matrices, and vectors are all assigned to single letter variables, just like scaler or complex quantities, and without the LIST or MAT prefix. (FYI: Algebra mode is a separate CAS mode. It is designed (IMHO) to be a canvas for manual equation tinkering, rather than assisting or supplanting it as CAS does. Algebra mode lacks auto-simplification of answers, and supports an expurgated set of commands.) >There are a number of other annoyances as >well. The ClassPad seems to handle all my concerns with the AFX. Tom Lake > Cordially, Richard Kanarek ==== >I have an AlgFX 2.0+ and a TI-89 and almost always use the 89. Try getting >imaginary roots of an equation from the MAT screen on an AFX! > First of all, although the RUN mode of later model Casio calculators > has subsumed the Matrix editor (MAT mode), IMHO it is still called > the RUN or RUN-MAT mode, not the MAT mode. Pedantics aside, I don't think it's fair to fault the Algebra FX's CAS > mode for not being able to work in RUN (aka RUN-MAT, or, if you > insist, MAT) mode, just as I don't think it's fair to fault the > TI-92+'s CAS mode for not working in Var-Link mode. I've also heard > that the HP-4x calculators do very poorly when in the off mode, yet > I will not hold this point against them either. Var-Link is not a calculation mode. No one would expect it to calculate anything in that mode and the Catalog isn't needed. The Catalog would be VERY useful in CAS or Equation modes but it isn't available. My HP does much better in Off mode than my AFX does in MAT mode! Since the TI-89 has no problem at all using CAS in any *CALCULATION* mode, it's not unreasonable to expect the Casio to do the same. In fact, as I stated, Casio admitted that limitation of the AFX and has fixed it in the ClassPad. For who knows what reason, Casio calculators feature several > distinct operating modes. If you like this arrangement (as I sort of), > you can defend it by point out that it gives you two or three > calculators in one package, for one price. For example, I was recently > using my FX's CAS mode to work on one problem, when I wanted to work > on another. I switched to its RUN mode (i.e. non-CAS scientific > calculator mode), did my calculation(s), and then switched back to the > CAS mode. Absolutely everything was as I had left it. Swell, don't you > think? > You must not be a male if you can work on more than one thing at a time! ;-) I'm not saying that multi-mode is a bad thing but rather that all features of any calculation mode should be available in any other calculation mode. Casio and Saltire (creators of Casio's CAS) seem to agree since that's how the ClassPad works. > Of course, I can see how the variety of modes might pose difficulties > for those utterly without any deductive reasoning abilities, and for > those who simply cannot RT(F)M (which is included free with the Casio > calculators). In programming, you're limited to single letter variable names,... > [Algebra FX] And two Greek letters, for a total of 28. Further, > functions, written in traditional syntax (i.e. f(x)), are only > slightly supported in Graph mode. ... and list names all start with LIST. > For a guy who can't keep track of what mode his calculator is in, I'd > think you'd appreciate the hint. BTW, in CAS or Algebra modes lists, matrices, and vectors are all > assigned to single letter variables, just like scaler or complex > quantities, and without the LIST or MAT prefix. (FYI: Algebra mode is > a separate CAS mode. It is designed (IMHO) to be a canvas for manual > equation tinkering, rather than assisting or supplanting it as CAS > does. Algebra mode lacks auto-simplification of answers, and supports > an expurgated set of commands.) Just another source of confusion to call the same data items by a different name in a different mode. The HPs and TIs are so far out in front of this one thing in defense of the Casio AFX, though. It's a DOS machine and can run MS-DOS programs. I've written programs in 80286 assembler, GW-BASIC, C and even a FORTRAN and a COBOL program that all run on the Casio. It's easy to program for. Tom Lake ==== Regarding your recent post: My shots are not cheap; I spend a great deal of time and effort on them. I (continue to) disagree that the failure of a command to work where it is not meant to work represents a deficiency. Look at these poor HP calculator users; several bug fixes ago, they would have been happy if their calculator's (de mortius nil nisi bonum) functions functioned anywhere, at any time! You do raise -- or at least skirt around -- a valid point: although the FX series of calculators are flash upgradable, Casio doesn't seem to have any intention of releasing any flash upgrades (although they have released a few flash applications). While the Algebra FX 2.0+ is apparently physically identical to the FX 2.0 (and FX 1.0?), the only way to upgrade is to replace the entire calculator. They also seem to have no intention of releasing anything close to the low-level programming information available for the TIs or HPs, even though one could not possibly ask for a more fertile programming field than that provided by the DOS-turbo-XT-computer-pretending-to-be-a-calculator Algebra FX. And, since you appear to have some knowledge of low-level Algebra FX programming, shouldn't you be off writing an FAQ rather than bantering with me? AFAIK, the only Algebra FX programming FAQ that exists is in French! Cordially, Richard Kanarek ==== Regarding your recent post: My shots are not cheap; I spend a great deal of time and effort on > them. I (continue to) disagree that the failure of a command to work where > it is not meant to work represents a deficiency. Look at these poor HP > calculator users; several bug fixes ago, they would have been happy if > their calculator's (de mortius nil nisi bonum) functions functioned > anywhere, at any time! X de mortius = death? nil nisi bonum = does not do good (get us a bonus) Please translate... PS: The calculator finally works good enough since 1.19-5 ==== >> Regarding your recent post: >> My shots are not cheap; I spend a great deal of time and effort on >> them. I (continue to) disagree that the failure of a command to work where >> it is not meant to work represents a deficiency. Look at these poor HP >> calculator users; several bug fixes ago, they would have been happy if >> their calculator's (de mortius nil nisi bonum) functions functioned >> anywhere, at any time! de mortius = death? >nil nisi bonum = does not do good (get us a bonus) >Please translate... de mortuus nil nisi bonum of the dead, nothing except good (literal) = Don't speak ill of the dead. -- john ==== How about copying all files from the Emu48 directory to the other PC, too... UCHOA schrieb im Newsbeitrag > I have EMU48 on my computer. I would like to run the EMU48 in another > computer with the same programs used in the first computer. When a try > to load, in the second computer, the file with extension .E48, > appears the message This file is missing or already loaded in another > instance of Emu48. I have already put in the second computer the > romdump of my calculator HP 48GX used in the first computer. > What I have to do to use the same programs of the HP 48GX in > differents computers? ==== AFAIK Emu48.ini normally resides in the Windows directory... Raymond Heiko Arnemann schrieb im Newsbeitrag Raymond Del Tondo schrieb > How about copying all files from the Emu48 directory to the other PC, > too... There is a *.ini File which need to be taken into the copy-procedure. Search for emu48.ini and copy it, too and locate it to the new > correct place on the new PC. ..Heiko > ==== > I have EMU48 on my computer. I would like to run the EMU48 in another > computer with the same programs used in the first computer. When a try > to load, in the second computer, the file with extension .E48, > appears the message This file is missing or already loaded in another > instance of Emu48. I have already put in the second computer the > romdump of my calculator HP 48GX used in the first computer. > What I have to do to use the same programs of the HP 48GX in > differents computers? Could this also mean that an instance of emu48 is running and therefore locking out certain files which are in the set being copied? ==== UCHOA schrieb im Newsbeitrag > I have EMU48 on my computer. I would like to run the EMU48 in another > computer with the same programs used in the first computer. When a try > to load, in the second computer, the file with extension .E48, > appears the message This file is missing or already loaded in another > instance of Emu48. I have already put in the second computer the > romdump of my calculator HP 48GX used in the first computer. > What I have to do to use the same programs of the HP 48GX in > differents computers? The problem is that you are want to use the _same_ state file (with register/memory content) in two or more instances of Emu48. This isn't possible, this will cause a file sharing voilation, because both instances want to _write_ to the same file. Solution: Make a copy of you state file (*.E48 file) and start the 2nd instance of Emu48 with the state file copy. Article about How to run multiple instances of Emu48 at: http://membres.lycos.fr/ekalin/view.php?code=f575b431cf11cf3d5aa59a256502611 8 Christoph ==== The program is cool. But i had a Problem with the Hpcomm prog, is not a real Problem. After i transfer a file to the Hp 49 the HPcpmm open windows with Hf1 is a Verzeichnis and so on . Ok i can close this windows but is a little disturb. Can you solve this Problem? Greetings Achim Andreas Moeller schrieb: those of you who are interested in letting your 49G (ROM 1.19-6 only) >almost completly speak another language may want to try 'Deutsche >Meldungen 1.0' available on www.hpcalc.org. Creating another language is easy but laborious: Just split the lib >and replace all messages with your own. >Greetings, >Andreas > > ==== WD-40 ! The WD = Water Displacement Formula 40. It is not electrically conductive. Is great for cell phones dropped in the toilet. Fill it up through any open hole (battery compartment?). Then use the sock to get the oil out. You may have to wash your hands after balancing your checkbook for a while, the buttons might feel funny afterwards, but boy will they be silent! John E (I also don't assume responsibility if this doesn't work. I haven't squirted WD40 into any calculator yet. This is all theoretical.) > I think it's too late for that. > Maybe one could sink it into alcohol and when the sugar-coffee > is off (after a minute?or 10) then use the (t)rusty sock-method... Beware of security holes in your system - you may crash your HP !! PS: I don't take any responsibility if decide to follow any advice > OR not to follow it... updated version 1.0 ;) > just put it in a *sock* and spin it around > PS: the circuitry inside my head must be rusting ==== >WD-40 ! The WD = Water Displacement Formula 40. It is not electrically >conductive. Is great for cell phones dropped in the toilet. >Fill it up through any open hole (battery compartment?). >Then use the sock to get the oil out. >You may have to wash your hands after balancing your checkbook for a while, >the buttons might feel funny afterwards, but boy will they be silent! John E (I also don't assume responsibility if this doesn't work. I haven't squirted >WD40 into any calculator yet. This is all theoretical.) > We used to get two way radios at Icom America where the owner sprayed the unit with WD-40. We just sent them back un repaired. WD-40 makes a real mess of electronics. It is hard to clean off the circuit board for any needed repairs, sometimes swells plastic and rubber parts. I would not recommend doing this. Best to remove any batteries as quick as possible, then flush, flush, flush with clean water, distilled is best. If you can open the unit that is the very best way. Liquids like coffee, colas, dirty water are very corrosive and need to be removed quickly. Once air gets into the unit with the liquid corrosion starts and its all down hill from there. Gary K8IZ ==== You gave me the right tip. You make only one fault. Veli-Pekka Nousiainen schrieb: >s*C2*(Uc-Ua)=Ua/R2 >----- >s*C1*Uc=I1-I2 >[ I1= -(Uc-Ue)/R1 I2=Ua/R2 ] >SUBST => @ you may also substitute one at a time >s*C1*Uc=-(Uc-Ue)/R1-Ua/R2 >finally you make a vector from those s*... >and another vector [Ua Ue] and use LINSOLVE >[ s*C2*(Uc-Ua)=Ua/R2 s*C1*Uc=-(Uc-Ue)/R1-Ua/R2] >[ Ua Ue ] >LINSOLVE => @ take a brake! Read the Bible! >.... > I think this is a fault - not the reading of the bible, I think linsolve is the fault. I my opinion you must solve one of this equation to Uc and then substitute the Uc in the other equation and then you have only one equation without Uc, I2 and I1. yeah, that is it. :-) And now i solve the equation to Ua and Uc. >it seems that your system is under determined (or I lack math skills) >since Uc is still there...sorry. >Anyone with more brains, skill and patient out there? > And now i have the next Problem. After i expand the solution, i become this: (s*Ue*R2*C2) Ua= ------------------------------------------------------------ (sî*R2*R1*C2+s*R1)*C1+(s*R1+s*R2)*C2+1 The first Problem with this is i want to eliminate the brackets. And the second Problem is i want R1*C1 substitute with T1 and R2*C2 substitute with T2. Can i do this??? Achim ==== You gave me the right tip. You make only one fault. Veli-Pekka Nousiainen schrieb: X > And now i have the next Problem. > After i expand the solution, i become this: (s*Ue*R2*C2) > Ua= ------------------------------------------------------------ > (sî*R2*R1*C2+s*R1)*C1+(s*R1+s*R2)*C2+1 The first Problem with this is i want to eliminate the brackets. > And the second Problem is i want R1*C1 substitute with T1 and R2*C2 > substitute with T2. > Can i do this??? Sure (beware of mistakes I make without Jolt Cola) 1) That EQ in Stack press down arrow to start the EQuation Writer Select individually the lower part first term and FACTOR then second and FACTOR (you may also apply FACTOR to the +1 if you wish) 2) 'R2*C2=T2' SUBST and then go again to FACTOR the two pieces 'R1*C1=T1' SUBST and then go one more time to FACTOR but...oh no! since there is a term R1*C2 in your orginal equation you cant simplify it more, there will always be a C2/C1 term. T2*Ue*s Ua= ------------------------------------------------------------ s*(T2*C1+T1*C2) T1*s*(s*T2+1) + ---------------------- + 1 C1 ==== Veli-Pekka Nousiainen schrieb: >> (s*Ue*R2*C2) >>Ua= ------------------------------------------------------------ >> (sî*R2*R1*C2+s*R1)*C1+(s*R1+s*R2)*C2+1 >> >Sure (beware of mistakes I make without Jolt Cola) 1) That EQ in Stack press down arrow to start the EQuation Writer >Select individually the lower part first term and FACTOR then second >and FACTOR (you may also apply FACTOR to the +1 if you wish) > > ok i do this, but the C1 by the term (sî*R2*R1*C2+s*R1)*C1 are still out of the bracket.C2 by the next term too. >2) >'R2*C2=T2' SUBST and then go again to FACTOR the two pieces >'R1*C1=T1' SUBST and then go one more time to FACTOR >but...oh no! since there is a term R1*C2 in your orginal equation >you cant simplify it more, there will always be a C2/C1 term. > Oh, i do this yesterday and nothing happens, but at this morning it is going. I think i was to tired and my caffeine level was very low.:-) I forget to say that R1*C2=T12!!! But I substitute first R2*C2=T2, then substitute R1*C1=T1 and now is i want to substitute R1*C2=T12 but ... no R1*C2 term left over. oh noooooo. Is not a great Problem because i can substitute this on the Paper, but it want to be nice i can do this with the HP. ( i know bad grammar ;-) ) Achim > > ==== Veli-Pekka Nousiainen schrieb: > (s*Ue*R2*C2) >>Ua= ------------------------------------------------------------ >> (sî*R2*R1*C2+s*R1)*C1+(s*R1+s*R2)*C2+1 >Sure (beware of mistakes I make without Jolt Cola) 1) That EQ in Stack press down arrow to start the EQuation Writer >Select individually the lower part first term and FACTOR then second >and FACTOR (you may also apply FACTOR to the +1 if you wish) > ok i do this, but the C1 by the term (sî*R2*R1*C2+s*R1)*C1 are still > out of the bracket.C2 by the next term too. 2) >'R2*C2=T2' SUBST and then go again to FACTOR the two pieces >'R1*C1=T1' SUBST and then go one more time to FACTOR >but...oh no! since there is a term R1*C2 in your orginal equation >you cant simplify it more, there will always be a C2/C1 term. Oh, i do this yesterday and nothing happens, but at this morning it is > going. > I think i was to tired and my caffeine level was very low.:-) > I forget to say that R1*C2=T12!!! > But I substitute first R2*C2=T2, then substitute R1*C1=T1 and now is i > want to substitute R1*C2=T12 > but ... no R1*C2 term left over. oh noooooo. > Is not a great Problem because i can substitute this on the Paper, but > it want to be nice i can do this with the HP. > ( i know bad grammar ;-) ) > They *are* useful (in spite of errors) if you learn how to use the EQW Now back to the problem: (s*Ue*R2*C2) Ua= ------------------------------------------------------------ (sî*R2*R1*C2+s*R1)*C1+(s*R1+s*R2)*C2+1 1) I use the 'R2*C2=T2' SUBST and then EVAL to make it simple s*Ue*T2 Ua= ---------------------------------------------- (sî*T2+s)*R1*C1+s*R1*C2+s*T2+1 2) Then I put the 'R1*c1=T1' on stack ready for use and SWAP the Ua=...into the first level and press [Down-Arrow] to go to the EQW 3) On the EQW I press [Right-Shift] [D-A] and then [Right-A] four times then [Up-A] 5 times to highlight the term (sî*T2+s)*R1*C1 4) Now I press [SYMB] |ALG| |SUBST| then [HIST] |ECHO| (the stack is shown and the 'R1*c1=T1' is selected) Then [L-S] [U-A] [EVAL] [ENTER] [EVAL] s*Ue*T2 Ua= ----------------------------------------- s*R1*C2+(sî*T2+s)*T1+s*T2+1 I think you know how to proceed.... 'R1*C2=T12' can be now easily SUBSTituted directly on the stack. s*Ue*T2 Ua= -------------------------------------- s*T12+(sî*T2+s)*T1+s*T2+1 ==== > Do you mean that 4 years ago there was an HP49 model with: > -The 48 case > -The 48 keyboard > -The 48 screen It's using the same screen as the HP49.. > -The 48 colors > -The 48 IR port > -The 48GX expansion slots > I sure wish I'd known about it, because I'd certainly have bought one, > rather than vowing never to buy a 49 under any circumstances! Your bad really... Some people swear never to buy the atest porsche because it doesn't look enough like the 1968 model ==== > You have forgotten a higher resolution grayscale levels screen(262*128 > for compatibility mode),much more advanced plotting abilities,etc... > I don't think that the HP49Gii will have all that unfortunately :-( > Well, a better screen would be okay too. Perhaps I worded my original wish poorly. I should have said, the things I'd like changed on future HP48. Actually, I'm easy to please. Just crank the 48 up to 500mhz and that'll be enough. Oh, speed up the UART also. Wishful thinking, J ==== > You have forgotten a higher resolution grayscale levels screen(262*128 > for compatibility mode),much more advanced plotting abilities,etc... > I don't think that the HP49Gii will have all that unfortunately :-( > Well, a better screen would be okay too. Perhaps I worded my original wish poorly. I should have said, the > things I'd like changed on future HP48. Actually, I'm easy to please. Just crank the 48 up to 500mhz and > that'll be enough. Oh, speed up the UART also. Wishful thinking, Not at all! HP is going to release a new model HP 58GX Turbo just before Xmas It is not a 500MHz, but a 5GHz machine! The 90nm Prescott or was it Tejas The only problem is: it works on AC only eg. wall outlet of 110V or 230V. (-; ==== > Do you mean that 4 years ago there was an HP49 model with: > -The 48 case > -The 48 keyboard > -The 48 screen It's using the same screen as the HP49.. -The 48 colors > -The 48 IR port > -The 48GX expansion slots I sure wish I'd known about it, because I'd certainly have bought one, > rather than vowing never to buy a 49 under any circumstances! Your bad really... Some people swear never to buy the atest porsche because > it doesn't look enough like the 1968 model Well, mine is a 1980, and it looks plenty good for me (but I will never buy the latest models, they are too round) :-) ==== What is this HP 58GX about??? You *can't* just drop a bomb like that on us and not give any extra info to sate our thirst!!! Where did you learn about it? Any info on the web? Eduardo > > You have forgotten a higher resolution grayscale levels screen(262*128 > > for compatibility mode),much more advanced plotting abilities,etc... > > I don't think that the HP49Gii will have all that unfortunately :-( > > Well, a better screen would be okay too. Perhaps I worded my original wish poorly. I should have said, the > things I'd like changed on future HP48. Actually, I'm easy to please. Just crank the 48 up to 500mhz and > that'll be enough. Oh, speed up the UART also. Wishful thinking, > Not at all! > HP is going to release a new model HP 58GX Turbo just before Xmas > It is not a 500MHz, but a 5GHz machine! The 90nm Prescott or was it Tejas > The only problem is: it works on AC only eg. wall outlet of 110V or 230V. > (-; ==== > What is this HP 58GX about??? You *can't* just drop a bomb like that on us > and not give any extra info to sate our thirst!!! Where did you learn about > it? Any info on the web? hypothetical dream calculator. Unfortunately, I think it never will be more than a dream. I don't believe the new HP has either the talent or the imagination to produce a really good calculator. It will surprise me greatly if we ever see anything worthwhile come out of HP again. -- Wayne Brown | When your tail's in a crack, you improvise fwbrown@bellsouth.net | if you're good enough. Otherwise you give | your pelt to the trapper. e^(i*pi) = -1 -- Euler | -- John Myers Myers, Silverlock ==== What is this HP 58GX about??? You *can't* just drop a bomb like that on us > and not give any extra info to sate our thirst!!! Where did you learn about > it? Any info on the web? Eduardo A desktop computer, dear Eduardo...or, as some call it: a PC You can download a HP 49G emulator to your current PC here: http://www.hpcalc.org/details.php?id=3644 SORRY about the confusion! I thought that everybody would guess right away! I'm just sick and tired with all this talk about new calculators and without.... and not give any extra info to sate our thirst!!! Where did you learn about it? Any info on the web? like you just put it, Eduardo THAT was my point !!! If you talk the talk you have to walk the walk, too. Otherwise you are a m...erh...joker? Veli-Pekka Nousiainen PS: Intel & HP had the Itanium-baby together. So it's natural to think that HP woulg get the Prescott/Tejas early. (again: for their desktop PC, which I called the HP 58GX) (it uses the new nVidia GX Graphical FX processor NV40) There is no such thing at all AND that CPU surely needs more than 100 000 mW for operation. (+ the other PC HW) How long will 3*AAA last on, say, 350W/230V ? PPS: The only problem is: it works on AC only eg. wall outlet of 110V or 230V. > (-; See the text, it's not a battery operated thing! SEE THE SMILEY !!! it was a joke! > > You have forgotten a higher resolution grayscale levels screen(262*128 > > for compatibility mode),much more advanced plotting abilities,etc... > > I don't think that the HP49Gii will have all that unfortunately :-( > > Well, a better screen would be okay too. > > Perhaps I worded my original wish poorly. I should have said, the > > things I'd like changed on future HP48. > > Actually, I'm easy to please. Just crank the 48 up to 500mhz and > > that'll be enough. Oh, speed up the UART also. > > Wishful thinking, > Not at all! > HP is going to release a new model HP 58GX Turbo just before Xmas > It is not a 500MHz, but a 5GHz machine! The 90nm Prescott or was it Tejas > The only problem is: it works on AC only eg. wall outlet of 110V or 230V. > (-; ==== I *really* wanted (or perhaps needed) to believe you. I'd rather be embarrassed than miss out on the latest gossip... I, too, want a 58GX!!! Eduardo > SEE THE SMILEY !!! it was a joke! ==== > I *really* wanted (or perhaps needed) to believe you. I'd rather be embarrassed than miss out on the latest gossip... I, too, want a 58GX!!! You mean: a PC with a 5GHz T-slot CPU that I described? (with which you can run your emulator really faaaast) ??? PS: I guess you a mean the new super-duper HP 48GX on steroids with turbo from the good-old-days of the past: http://www.magpage.com/~jakes/1998/design.pdf PPS: Thnx, jsmanrique !! > Eduardo SEE THE SMILEY !!! it was a joke! > o:&GgwJPOI(If2ww^eJK>q(*!z ==== I want a smaller case. Thinner. Shrink it lengthways by eliminating space immediately above and below the display. > All I want in a future HP48 is more memory, more speed, and perhaps > seperate buttons for arrows. That's all. Coming soon? -- Ed Straker, Harlington-Straker LLC ==== I've noticed that whenever I graph two equations in two seperate sessions it keeps the zoom from the first session. I always have to go to zoom auto. Is there any way to make the 49G automatically zoom everytime instead of hitting the zoom softkey? Thanxs in Advance, CID ==== Andrzeju - widziañem na ebay HP48G sprzedawany za 1$ na cz.90.a6ci - LCD na pewno sprawny - autor wspomina., Ëe kalkulator nie chce si.90 wñ±czy.be. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3024323356&category=20335 pzdr LN ==== X > As to the ENTER key, a double wide central ENTER key would be very welcomed Z? Where are you going to put Z on the ALPHA keyboard? You just can't use the wide [ENTER] and ALPHA cursor keys at the same time. AND when you have [ENTER] in it's original place you need both Y and Z replaced because you need that [ENTER] function in ALPHA mode... Maybe if you loose the direct [ X ] letter and shift down the [ ] key (the small ENTER is gone) you gain the Y back and can have [EEX] and [+/-] besides [ENTER] now, but hey! Where is X now ?? It's hopeless! )-: PS: If anybody says we should have yet another row of keys, my answer would be: Yes! Function keys [F7] ... [F12] THEN we could have all the alphabet, big [ENTER] and even the [ ' ] tick back plus CHARS available in ALPHA, etc... ==== > X > As to the ENTER key, a double wide central ENTER key would be very > welcomed > Where are you going to put Z on the ALPHA keyboard? > You just can't use the wide [ENTER] and ALPHA cursor keys at the same time. > AND > when you have [ENTER] in it's original place you need both Y and Z replaced > because you need that [ENTER] function in ALPHA mode... > Maybe if you loose the direct [ X ] letter and shift down the [ ] key > (the small ENTER is gone) you gain the Y back and can have > [EEX] and [+/-] besides [ENTER] now, but hey! Where is X now ?? > It's hopeless! > )-: > PS: If anybody says we should have yet another row of keys, > my answer would be: Yes! Function keys [F7] ... [F12] > THEN we could have all the alphabet, big [ENTER] > and even the [ ' ] tick back plus CHARS available in ALPHA, etc... > Why do all keys have to be on the front of the calculator? They could be on the sides or top. I can imagine having a large Enter key on the left hand side or an Escape on the right. Or how about a scroll wheel for the menus? This would bring more digits into use and perhaps speed up operation. There must be a better way to organise the keyboard. ed ==== > It's hopeless! > If anybody says we should have yet another row of keys, > my answer would be: Yes! This goes in the wrong direction. In the contrary, one should try to return to the 9-row keyboard of the HP48 with slightly bigger keys, even with a double-spaced ENTER key, and the HP49-design of the Arrow keys (without letters), with shift-hold supported. Only few people have that clumpsy fingers unable to distinguish shifthold or non-shifthold (as for prominent places. For EQW a shift is good enough (although JYA certainly invested much effort on it :-). Furthermore, why not making a direct key TRIG which sets a menu of all trigonometric functions? That would save a lot on the keyboard. As mentioned already, the righshift editor ommands BEGIN, END, COPY, CUT, PASTE have clearly to be present on a modern high-quality calc, with some additional useful tasks outside edit mode. - Wolfgang ==== > It's hopeless! > If anybody says we should have yet another row of keys, > my answer would be: Yes! This goes in the wrong direction. In the contrary, one should try to > return to the 9-row keyboard of the HP48 with slightly bigger keys, even > with a double-spaced ENTER key, and the HP49-design of the Arrow keys > (without letters), with shift-hold supported. Only few people have that > clumpsy fingers unable to distinguish shifthold or non-shifthold (as for > prominent places. For EQW a shift is good enough (although JYA certainly > invested much effort on it :-). Furthermore, why not making a direct key > TRIG which sets a menu of all trigonometric functions? That would save a > lot on the keyboard. As mentioned already, the righshift editor ommands > BEGIN, END, COPY, CUT, PASTE have clearly to be present on a modern > high-quality calc, with some additional useful tasks outside edit mode. X Sounds, good, but now, as I look at the HP 48GX keyboard, I don't seem to be able to put the letters K, P, Q, and R anywhere else as directly on the arrow keys. Hmm. rearranging...The nuber keys would have to go on the primary alpha keyboard to put all the letters back. No Wolfgang! I'm sorry, you can'.8at go back to 48 design (or would you rather have a HP 41CX design, 34C, then, 15C,) Maybe we shoulg go back to HP 28S, but have a full screen on the right hand side together with a pen-input for graphics like Sharp has. I'm confused to the edge....faaaalllliiiinnng... ==== > IMO, as far as keystroke accuracy, the HP49 with keyclick on is just > as good as the 48. The problem with the 49 keypad is that the rubber keys have too much friction with the plastic case when pressed at an angle. When pressed straight down, it's fine, but when doing fast calculations, it's difficult to press straight. If the keys had a plastic ring around the edge, or if they were completely plastic, I think they would work better. However, I still think the 48 keypad is the best. Derek ==== > TRIG which sets a menu of all trigonometric functions? That would save a > lot on the keyboard. A good idea, which I would prefer. Since you need two keystrokes for asin anyway, you wouldn't be that worse off. However, I'm sure HP won't have it. Sales would plummet if consumers looked at the product and didn't see sin or cos on any of the keys. Derek ==== > The calculator keyboard should not be the original HP48 keyboard, > but also not the chaotic HP49-keyboard. IMHO, a group of experts > should discus the keyboard question seriously. To reduce the number > of necessary keys somewhat, at least shift-hold should work. And what would be a better keyboard layout? One designed according to the needs of the majority of potential users, perhaps, rather than experts? <7fcf10a1.0305130857.4f371115@posting.google.com> <3EC2036A.4F4561EC@math.fu-berlin.de> ==== In message <3EC2036A.4F4561EC@math.fu-berlin.de>, Wolfgang Rautenberg >> It's hopeless! >> If anybody says we should have yet another row of keys, >> my answer would be: Yes! This goes in the wrong direction. In the contrary, one should try to >return to the 9-row keyboard of the HP48 with slightly bigger keys, >even with a double-spaced ENTER key, and the HP49-design of the Arrow >keys [Snip] What about having *triangular* keys. Then you can have a function on the key itself plus 3 shifted functions around the sides, accessed through f, g and h shift keys. If you have the keys facing up and down alternately then they fill a neat rectangular row, just like the current keys. -- Bruce Horrocks Hampshire England bh@granby.demon.co.uk ==== > What about having *triangular* keys. Then you can have a function on > the key itself plus 3 shifted functions around the sides, accessed > through f, g and h shift keys. If you have the keys facing up and down > alternately then they fill a neat rectangular row, just like the > current keys. Why stop there? Make the keys square, and you can have *four* shifted functions around the sides. Hexagonal keys, anyone? Using f, g, h, i, j, and k shifts? If you were to use traditional HP RPN, I suppose you might want to skip i as a shift since it is normally used for indirect access. ==== Ok, make round keys, so you can have virtually limitless key assignments, depending on the angle you press them. Seriously, more than 2 shift levels are senseless (IMHO), or do we talk about Casios? Raymond Eric Smith schrieb im Newsbeitrag > What about having *triangular* keys. Then you can have a function on > the key itself plus 3 shifted functions around the sides, accessed > through f, g and h shift keys. If you have the keys facing up and down > alternately then they fill a neat rectangular row, just like the > current keys. Why stop there? Make the keys square, and you can have *four* shifted > functions around the sides. Hexagonal keys, anyone? Using f, g, h, i, j, and k shifts? If you > were to use traditional HP RPN, I suppose you might want to skip i as > a shift since it is normally used for indirect access. > ==== > This goes in the wrong direction. In the contrary, one should try to > return to the 9-row keyboard of the HP48 with slightly bigger keys, even But the HP49 has bigger keys than the HP48! > with a double-spaced ENTER key, and the HP49-design of the Arrow keys > (without letters), with shift-hold supported. Only few people have that > clumpsy fingers unable to distinguish shifthold or non-shifthold (as for If you look at TI, none of the menu keys are actually located on a direct key. All shifted. Millions of users are okay with that! > prominent places. For EQW a shift is good enough (although JYA certainly > invested much effort on it :-). Furthermore, why not making a direct key I agree there Problem is, if you want to keep the HP49 keyboard, it's pretty hard to make many changes. Having ' and EVAL on a direct key is a must IMO (for a RPN calculator) > TRIG which sets a menu of all trigonometric functions? That would save a > lot on the keyboard. As mentioned already, the righshift editor ommands I disagree there, having trig commands in a sub-menu is a pain, and that's why I never liked the HP28 much ==== >> One designed according to the needs of the majority of potential > users, perhaps, rather than experts? > Well, that's how the HP49 keyboard got designed, with mainly input from teachers ==== a top half of a dodekahedron has more facets... > In message <3EC2036A.4F4561EC@math.fu-berlin.de>, Wolfgang Rautenberg >> It's hopeless! >> If anybody says we should have yet another row of keys, >> my answer would be: Yes! This goes in the wrong direction. In the contrary, one should try to >return to the 9-row keyboard of the HP48 with slightly bigger keys, >even with a double-spaced ENTER key, and the HP49-design of the Arrow >keys > [Snip] What about having *triangular* keys. Then you can have a function on the > key itself plus 3 shifted functions around the sides, accessed through > f, g and h shift keys. If you have the keys facing up and down > alternately then they fill a neat rectangular row, just like the current > keys. > -- > Bruce Horrocks > Hampshire > England > bh@granby.demon.co.uk ==== A mil-spec model with pentagonal keys? ==== I prefer sex-agonal keys, pentagon-al keys remainds me too much of a satanic symbol. (-: Veli-Pekka PS: Have you heard the latest rumors, Eduardo? HP is going to release a math tool with triangular keys after all SORRY but these models have already been released in the last millenium so quite old stuff... PPS: There is a new Graphical calculator with not only LN, LOG, nthRoot hyperbolic, conversions, bin, hex, trig, etc, but also *fractional* calculus AND the programming has been enhanced so that you have like ten (10) different calculator plus the plotting has naturally zoom, and models are LIN, LOG, PWR, e^, INV, QUAD, with automatic labeling. There are at least functions and histograms. You may trace a graph. PLUS The internal precision is up to 24 digits! It also has a constants library prefixes like G for Giga are accepted (FIX, SCI, ENG, ALL) and more than 20 annuciators. the editor can undo a DEL and ther is a history stack plus Arrays can accept even negative indexes There are 14 precedense levels, MAX and MIN can handle several numbers There are labels and error messages and user text messages and subroutine levels and - contrary to certain TI models - *closing* parenthesis (like in all good HP) can be omitted when there is a multiple nesting parenthesis present. It even has a Degrees Minutes Seconds display format. Random numbers can be selected from a range, there is 3rd root and X^3, Statistical fn includes: Capability accuracy of the x and y values, Potential Capability Precision of the x and y values, ppm = Parts per million defection opportunuities and Cpkx, Cpky which I did not even understand. C-like LANGUAGE pre or post test incr/decr options. You can SWAP variable contents and pressing esc *asks* if you really want to stop a program and if an error happens, after 5 seconds it set the cursor to blink on the error location, inaturally you can Trace step by step. SORRY That models exists also... > A mil-spec model with pentagonal keys? > ==== Good point. I don't believe so. >>>Surely the easiest way to do it is via a saved state file. >> Will using different state files allow one to run more than one instance of > emu48 at a time? Robert ==== Colin Croft schrieb im Newsbeitrag > Good point. I don't believe so. but I believe. emu only share the general settings of the Emu48.ini file, the port2 file and in the HP49 case when using the same KML file the ROM image with the flash memory content. It's only _important_ using different state files, just try it. Christoph >>>Surely the easiest way to do it is via a saved state file. > > Will using different state files allow one to run more than one instance of > emu48 at a time? Robert > ==== >but I believe. And now I do to. Robert >>>Surely the easiest way to do it is via a saved state file. > > Will using different state files allow one to run more than one instance of > emu48 at a time? Robert Good point. I don't believe so. ==== > Good point. I don't believe so. Well, I do it everyday. I have a HP49 emulator and a HP39 emulator running at the same time on my PC right now >> Will using different state files allow one to run more than one instance of >> emu48 at a time? >> >> Robert > ==== I have a question about my infrared port: Is there an avaliable software to install in my notebook (which has also an infrared port) to get communicated with my HP48? If someone can post me a link or guide me to achieve this... GTampierB. ==== What is this the trademark, model and serial number of your Notebook?. Miguel Angel CAPORALINI HERK (M.A.C.H.) **************************************************************************** **** > I have a question about my infrared port: Is there an avaliable software to install in my notebook (which has > also an infrared port) to get communicated with my HP48? > If someone can post me a link or guide me to achieve this... GTampierB. ==== Timit.8e Hassan schrieb im Newsbeitrag > What would be its advantages over the actual HP49G ? > A better keyboard ? yes! And a documentation, comparable with the HP48G - Series is rqd. This is a must, IMO. More memory and a faster CPU and higher resulution belongs together but it would be something I won't pay that much attention for it. For sure the the competition should be beaten in terms of speed, but nice screen colors is not realy a serious requirement for a handheld. More important is functionality, efficiency, robustness and quality, this is what I assosiate with *HP*. best wishes Heiko ==== > More memory and a faster CPU and higher resulution belongs together > but it would be something I won't pay that much attention for it. > For sure the the competition should be beaten in terms of speed, > but nice screen colors is not realy a serious requirement for a > handheld. > More important is functionality, > efficiency, robustness and quality, this is what I assosiate with *HP*. So HP49g is better then 48 series ? I've got HP48G+ and I haven't yet discovered its full possibilities. There are several offers of HP48GX and HP49 . I just don't no what to do. Should I sell 48 and buy 49? Or maybe 48GX? Which one is a better choice? Lunaak (new to this group) Poland ==== > PS: I would still keep the 48G, budget permitting... Yes, I think I'll keep it. Lunaak POLAND ==== If there is a HP49Gii model introduced with an expanded manual similar to the HP 48 series, will the manual be available to the existing HP49G users electronically, or is the operating systems and features going to be radically changed? thx ==== Could you supply some info or link to to the HP49Gii as I haven't been able to find anything concrete about it. I'm hoping that it's more than just another user fantasy. I am yet to see substantial evidence that HP is returning to the advanced calculator market. The 9G are a bad joke and it appears the 49G's are no longer available in Australia. > What would be its advantages over the actual HP49G ? > A better keyboard ? > More memory ? > A faster CPU ? > A higher resolution screen ? > If anyone has any information... ==== Could you supply some info or link to to the HP49Gii as I haven't been able to find anything concrete about it. I'm hoping that it's more than just another user fantasy. I am yet to see substantial evidence that HP is returning to the advanced calculator market. The 9G are a bad joke and it appears the 49G's are no longer available in Australia. > What would be its advantages over the actual HP49G ? > A better keyboard ? > More memory ? > A faster CPU ? > A higher resolution screen ? > If anyone has any information... ==== HfJwa.6686$DP4.87802@news-server.bigpond.net.au, Stephen Nash > Could you supply some info or link to to the HP49Gii as I haven't been able > to find anything concrete about it. I'm hoping that it's more than just > another user fantasy. This discussion started by somebody writing about what he would like to see in a new HP48. obvious that a 5Ghz CPU didn't make much sense) No new product has been announced by HP, as it happens every once and a while these are just unfounded rumours ==== Could you supply some info or link to to the HP49Gii as I haven't been able to find anything concrete about it. I'm hoping that it's more than just another user fantasy. I am yet to see substantial evidence that HP is returning to the advanced calculator market. The 9G are a bad joke and it appears the 49G's are no longer available in Australia. > What would be its advantages over the actual HP49G ? > A better keyboard ? > More memory ? > A faster CPU ? > A higher resolution screen ? > If anyone has any information... ==== Could you supply some info or link to to the HP49Gii as I haven't been able to find anything concrete about it. I'm hoping that it's more than just another user fantasy. I am yet to see substantial evidence that HP is returning to the advanced calculator market. The 9G are a bad joke and it appears the 49G's are no longer available in Australia. > What would be its advantages over the actual HP49G ? > A better keyboard ? > More memory ? > A faster CPU ? > A higher resolution screen ? > If anyone has any information... ==== > This discussion started by somebody writing about what he would like Actually it was started by this post: http://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv010.cgi?read=33347 Jordi -- ==== > I am yet to see substantial evidence that HP is returning to the > advanced calculator market. The 9G are a bad joke and it appears > the 49G's are no longer available in Australia. WElll, I thi n k tthat teh hP12 C PT that i' M holdinng inn my hhansd (... let me put it on the table while I type) is a pretty substantial evidence. Some people start wars with less evidence to justify them :-) Jordi -- ==== > In 1994 Joe horn sent me the information on how to add the extra GX > commands to the proper file. ------------------------------------------------------------------------ 48G/GX extensions for PDL, by sysop@hpcvbbs.cv.hp.com [Cary McCallister] 22 Jun 1993 PDL may be extended to accomodate the new HP48 G/GX commands by placing the HP48G.CMD file in your PDL directory. Cary (SYSOP) [Note: even though adding this file will make your Program Development Link recognize the new G/GX commands, it won't have on-line help for them like the S/SX commands do. -jkh-] ------------------------------------------------------------------------ BTW, Demeter, happy to see I'm not the only informer here ... :-) http://groups.google.com/groups?selm=7fcf10a1.0203070427.52d3eab1%40posting. google.com Jordi -- ==== Bob Do not despair! Try the following link for the >PDL (both demo & regular product) ftp://ftp.stud.fh-heilbronn.de/pub/system/hp48/hacker/compiler/other/pdl/pd l.tar.gz > >or if you prefer you can try another DOS program, hpshell: http://www.wellige.com/hpshell Do not tell anybody I told you about the first link ;-) !Demeter! ==== Strange that the link did not work for you. However, if you still need the program, drop at demeter1@otenet.gr and I shall promptly send you a zipped copy of it! !Demeter! ==== Veli-Pekka Nousiainen schrieb: > www.hp.com > I think I have proved my case: > there is no longer a dash between the HP and the model number!!! > 99% of these hits refer to the hp 49 ink jet catridges, only a few refers to the hp 49 add ons - actually I've found no direct link to the calculator itselfs. Marten ==== HP websites say the latest is 1.18 which released on 3/1/20003 (http://h20015.www2.hp.com/en/softwareDownloadIndex.jhtml?reg=&cc=&soft item=ca100en&prodId=hp49ggraph24252&lc=en&sw_lang=en) I had my HP 2 years ago and already patched it 1.18. So what's with the date ? ==== > HP websites say the latest is 1.18 which released on 3/1/20003 > (http://h20015.www2.hp.com/en/softwareDownloadIndex.jhtml?reg=&cc=&soft > item=ca100en&prodId=hp49ggraph24252&lc=en&sw_lang=en) I had my HP 2 years ago and already patched it 1.18. So what's with the > date ? Nothing. As far as I can see, the date is 1/3/2001, which is perfectly consistent with your 2-yeay-old update. Also, note that you can download the 1.19 series of roms from www.hpcalc.org they contain significant improvements over the 1.18 rom. Jeremy Gibbons ==== > IMO, as far as keystroke accuracy, the HP49 with keyclick on is just > as good as the 48. I think we need to exchange our HP49ers (yours and mine :-) Number hacking is much faster possible on HP48G, because I *feel, when a keystroke is done and the required force is much less on HP48. My HP49 needs more than 2 Newton (I do not know how many BTU/feet^3 it is ;-) for a keystroke and I am missing a clear mechanical indication for a stroke. I have experianced wrong interpretation of keystrokes on a HP49. You can try to handle the non-adequate behaviour by playing with KEYTIME, but in my opinion, *only a mechanical solution pays. Heiko ==== I'm an EE student, and i was given a used HP48. its been ok so far, but now when PDE's and matrix's has become part of my everyday life, i find it somewhat lacking... i assume part due to the fact that i never had a user-manual. so what i ask is this - 1. where can i get a user manual. (no shops where i live that sell HP calcs, was hoping to get a PDF or some other digital document) 2. Can the HP 48 solve symbolic Matrix''s and symbolic PDE's (or even just simple dif. eq.) ? 3. can it do fourier ? if so ... how ? thanks Lior ==== I'm an EE student, and i was given a used HP48. its been ok so far, but now > when PDE's and matrix's has become part of my everyday life, i find it > somewhat lacking... i assume part due to the fact that i never had a > user-manual. so what i ask is this - > 1. where can i get a user manual. (no shops where i live that sell HP calcs, > was hoping to get a PDF or some other digital document) HP 48G Series User's Guide is a 16MB PDF, it will take a while to load... http://www.hpcalc.org/details.php?id=3937 > 2. Can the HP 48 solve symbolic Matrix''s and symbolic PDE's (or even just > simple dif. eq.) ? Look here: http://www.hpcalc.org/hp48/math/symbolic/ > 3. can it do fourier ? FFT, IFFT, you need a vector of sixe 2^n, say 256 items, as input Look it up from the manual you are downloading...and downloading.... The new HP 49G would do symbolic matrices right out of the box. ==== This might help. http://www.hpcalc.org/details.php?id=3937 Stan I'm an EE student, and i was given a used HP48. its been ok so far, but now >when PDE's and matrix's has become part of my everyday life, i find it >somewhat lacking... i assume part due to the fact that i never had a >user-manual. so what i ask is this - >1. where can i get a user manual. (no shops where i live that sell HP calcs, >was hoping to get a PDF or some other digital document) >2. Can the HP 48 solve symbolic Matrix''s and symbolic PDE's (or even just >simple dif. eq.) ? >3. can it do fourier ? if so ... how ? thanks >Lior > ==== thanks I already have the 48, so i guess i wont be buying the 49G ... in order to update my 48G i need a pc cable right ? can it be bought seperatly ? thanks Lior. I'm an EE student, and i was given a used HP48. its been ok so far, but > now > when PDE's and matrix's has become part of my everyday life, i find it > somewhat lacking... i assume part due to the fact that i never had a > user-manual. so what i ask is this - > 1. where can i get a user manual. (no shops where i live that sell HP > calcs, > was hoping to get a PDF or some other digital document) HP 48G Series User's Guide is a 16MB PDF, it will take a while to load... > http://www.hpcalc.org/details.php?id=3937 2. Can the HP 48 solve symbolic Matrix''s and symbolic PDE's (or even just > simple dif. eq.) ? > Look here: > http://www.hpcalc.org/hp48/math/symbolic/ 3. can it do fourier ? > FFT, IFFT, you need a vector of sixe 2^n, say 256 items, as input > Look it up from the manual you are downloading...and downloading.... The new HP 49G would do symbolic matrices right out of the box. ==== > thanks > I already have the 48, so i guess i wont be buying the 49G ... > in order to update my 48G i need a pc cable right ? can it be bought > seperatly ? Sorry to dissapoint you, but the HP 48G series does not have a FlashROM You can upgrade the OS of the HP 49G only! BUT there are a lot of 3rd party libraries that you can download to your 48G AND for that you need the cable, which you can buy separately. Veli-Pekka ==== i also want to know if it is possible to get a cable (even for a price) for the 48g if its avail for over sea shipping... > if I am not mistaken I can get the PC Link Cable for HP49G free from HP > -- ThanhVu Nguyen > ==== Ok, just read down for a post by adrien (wanting to sell a serial cable) and replied by lerps (this is what u want) on how to simply build one urself ! > if I am not mistaken I can get the PC Link Cable for HP49G free from HP > -- ThanhVu Nguyen > ==== This loads up kinda slow: http://www.hpcalc.org/links.php You can buy the cable here, too: www.radixoy.com Veli-Pekka > i also want to know if it is possible to get a cable (even for a price) for > the 48g if its avail for over sea shipping... > if I am not mistaken I can get the PC Link Cable for HP49G free from HP > -- ThanhVu Nguyen > ==== This is the first time I have visited this newsgroup, so I'm not sure if this is on topic... My second expansion port seems to have quit on me... sort of. I can insert a card, (and I have tried a few), and the menu comes up in the library. Some functions work, but most either cause the calculator to hang indefinately or to perform a restart. Has anyone heard of this? (ie.. I insert the sparcom mathmatics pac, go to the library, select math, then attemt to bring up the math menu and it hangs. With another card, selecting one of the items causes the calculator to restart.) When a card is inserted to the second expansion slot and the calculator is turned on, there is a momentary display of random pixels in the bottom right portion of the screen. This only happens with expansion port 2 so I thought it might indicate something. If it is now dead, can this be fixed or do I now have a one expansion port HP48GX? Any help in the matter will be appreciated, Randy ==== Where could I get information about how to program in HP Basic? (it is used in the HP 9G calculator and others too) ==== No such thing, just marketing jargon for algebraic version of RPL. Slow too. Usually takes the arguments in the same order as RPL but within the parenthesis of the calling function. No stack to play with! Nothing to do with HP BASIC used in instrumentation. !Demeter! ==== Holding my brand new HP48GX ! ... ( needed sometime to switch from older HP28c-15c-67-41c Collection ) After adding RAMSS 2Mb card got message invalid data card ... Where can I find more info and how to against this issue ? ==== Holding my brand new HP48GX ! > ... ( needed sometime to switch from older HP28c-15c-67-41c Collection ) After adding RAMSS 2Mb card got message invalid data card ... > Where can I find more info and how to against this issue ? command will _not_ affect any data currently stored in any port. PS: I would just type in, holding [ALPHA] down: PINIT and then press [ENTER] ==== > 2) More important, nobody has a HP28C ROM image. It took hours and many very > expensive LR1 Lady batteries to make one. The HP28C, in opposite to the > HP28S is a very limited calculator so for many the work isn't worth to do > it. I did it many years ago (in 1988) both for the 28c and s. Unfortunatly it's on an HP's Integral PC (unix machine) floppy disk and my IPC's drive is dead :-( Paul