A50 Just found out about emu48. Great! but i need a copy of a rom image. Yep, my calc shows the whole thing (Y1(X)=2*X) and not only Y1(X). ==== I purge it from the current working directory, because next time when you start editing the global NED should be used, and not the one that resides in this working directory. Exactly this idea I had last night: Store 0 in variable NED in HOME. STARTED: << Starting editor NED 1 + + 1 DISP << HOME 'NED' 1 STO+ path EVAL your Initcode here EXITED: << Exiting editor NED + 1 DISP << HOME 'NED' 1 STO- path EVAL IF NED NOT THEN your Exitcode here END ==== Yes, it slows the 49G down just a little =) I'm amazed that anyone can stand it. If you checked the option that displayed errors in the status area, you might be interested in the contents of STARTERR too. ==== Vote for that. Yes, yes, arrrfff! Oh well, don't find that really necessary. Spherical harmonics would be fine! Well, one can easily define them as user functions. That would be wonderful, but I think that those commands would let you wait a long time, if the expressions you work with are not so simple. Anyway, if possible, I am for it. Well, rad is just fine for me. Hurrraaahhhhh! Perhaps it would be better to work on the already available command SIMPLIFY and make it better ? Yes!!!!!!!!! Yes, yes, yes!!!!!!!!!!!!!!!! Ditto! That would be very useful. Ditto. Another fine idea. Yes, for me this is a must. Could perhaps a density plot be added in the wish list? Yep! :-) Would be nice, but I can live with the current textbook display. Hmmm, fractions are already displayed as fractions. What do you mean? Such things can be easily programmed with the built in time functions of the HP49G. Let me guess. You have an HP41, don't you? ;-) Not very important for me.. ==== Committing new user banks to system improvements must be carefully considered, as what you call an improvement could be just another useless bunch of cryptic functions to other users. RAM on the 49 comes not as a freely disposable resource! Also the CATalog is already cluttered by hundreds of commands, a very effective way to scare and confuse the average new user, while most average users have no problems to install a new library when they have a new need, and also they can uninstall it later if they want more space. Your list was useful to me (it has several pointers to valuable stuff one can install), though I grew very pessimistic towards wish lists over the years, just because people soon start filling it with their most outrageous desires, becoming total time wasters for any reader. Maybe moderating the wish list could be a solution to this problem. have a nice day, Rahul cut I'm gonna have a look at the page U suggested me but... before I changed something (I don't remember what) EXP(x) was shown like: x e ==== I don't think that is possible before rom 1.19-6. Type VERSION and see Meanwhile Heiko Arneman made a Dutch version, Terribly easy with MakeACC! Only painting the 61x5 week-day grob by hand needs some time but ==== solvers posted on hpcalc.org, such as eql49 and eqslv. I would say they are pretty good. But none of them can call up the built-in equation solver directly. For example, while using eql49 to browse your equation library, pressing the soft key SLV will bring you back to stack (RPN mode), then you can enter the values for the variables with soft key, but to solve the equation, you would still have to start the builtin equation solver mannually. Does any one have or know an application that allows the user to add equation ==== what do you mean by starting the solver manually? I assume you are using eql49 version 2.7 (by James D. Purdey). You choose the equations you want to use then choose MSLV. You enter the values for the known variables as you mentioned. Then you can solve for the unknown variables (You have to be in RPN-Mode of course) by ==== John H. Meyers has written a nice UserRPL EQ-library which is of course fully customizable. On the HP49 with the improved speed of some commands it'll be even more fun then on the HP48. In addition the tiny UI (just added a CLEAR softmenu) for the built in SOLVR is something I use all day long. Search hpcalc for CleanSolver and for John's name. Greetings from Cologne -- ==== Out of the box the 49G can use and show greyscale pictures only in black and white. To view/edit greyscale grobs you must have some viwer/editor. Many good programs for this are at http://www.hpcalc.org/hp49/graphics/grayscale/ Just go there and download a viewer or editor of your choise. Greetings, ==== I have an HP-28S that is in good working condition except for some faults with the keypad. On the left keypad the 5th row from the top doesn't work, and the fifth column from the left doesn't work. On the right keypad, the 5th row from the top doesn't work. I tried calling HP to see if they would repair it, but they no longer Put the problem outside the . See the book and look at MSGBOX for more info. ==== I must admit that I am not sure what you are asking for... but try my site (below) if you're after information on the 38/39/40G. -- Old mathematicians never die; they just lose some of their If you want to program in ASM on Emacs, I think I have something which can help you. I've written a major mode for emacs to edit source files using the Masd syntaxe and it supporte too about 4000 extables entries of the 5307. For the moment only the coloration is efficient but I'm working on the indentation. As it's my first major mod, it can have some little bug (but it depend how you program, you can use it and never see a bug...) like the instructions started with '!'. The other are described at the start of the file. ==== yBr schreef: My french is very poor (as I only took it for 4 years in highschool :-) so could you please tell me what font-lock-type-face means? If this has to do with fonts, I must warn you that many fuctions in Emacs may fail as they are not able to detect or handle fonts. It seems that I was mistaken, this is a PC based Emacs program Pity.... -- This message was written with 100% recycled electrons Pivo as you prefer... All the type of instructions are supported : A=A+C.A A+C.A A=A+C A A+C A ... You can download them in tar gz or in zip. --- ==== Is there a way I can set the hp49 to always be in exact mode? Well, sometimes spaceports really is down, and the first address is just a redirector. But I don't really have another place to host the ==== I am in the process of building an RS232 radio interface. The Current selection of transmitters and receivers provide TTL logic. I reasoned that I Interesting to know that. Is that why COLLECT used with an equation collects the left and the right hand side on the left and sets this equal to 0? ==== | I would like to give you the question as well... | Your solution worked in RPN [...] so my conclusion so far is that you use RPN. | Is RPN so much better than algebraic? the main point is, that i've used the HP48 many years before the hp49 and i also have a HP32 - they all work with RPN and i really like it... in the meantime i'm nearly unable to type in a sqrt with a division or somethinge more complex on an algebraic calculator (on TI or sharp ==== I know I'm putting oil on fire, but.... :-) This weekend my sister visited us as she had a seminar in a town near by. She uses a HP48GX which she got as a present to help her with her statistics classes at the university. At the first time she wondered what those strange RPN mode was good for, but I told her about the advantages of the HP48 in general and she thought she'd just have to get used to RPN then (she didn't like it particularly when taking a first look). But soon RPN became natural and she told me she don't mind if the calc uses RPN or algebraic mode. That was about two years ago. This weekend she took the chance to test my HP49 when she had time in the train. I told her that now she could also switch to algebraic mode if she wants that. Her answer was: I don't understand why HP has put in an algebraic mode to the HP49, because RPN is one of the major strengths of the HP48 and is so much better then algebraic mode. She resumed that she makes nearly no typing errors when she's using the HP48, but must always be aware where to put parenthesis when using a Casio-like calc. Sure she admitted that using a HP48 one has to take care in which order to type in the numbers, but that this is totally natural as you'd have to calculate from the inside to the outside also when using just a pencil and paper or calculating in mind only. She thinks that it hasn't been a good design desicion to try to have an RPN _and_ algebraic mode in the HP49, because if it would be designed for RPN use only the menus and keyboard layout would be somewhat different and more efficient for RPN use (out of the box of Speaking of the HP49. Stefanie liked the pictures in the boot loader ;-) but she'll continue to use the HP48, because she noticed it would take a serious amount of time to get used to the HP49 and to customize it to her special needs. Besides that she mostly liked the HP49 and even found the i-Mac like blue case attractive. BTW, brothers and sisters don't always have to agree ;-) Greetings from Cologne -- Great HP48/49 links: http://www.hpcalc.org http://move.to/hpkb to find *old* postings search: http://groups.google.com/advanced_group_search