DC Circuit Simulator
in [HP48]
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From: bokubob on 7 Jul 2006 18:51 Hi John, I used a pretty nice on on my 49g+ for a while, but I messed up the memory since then. I have it on my desktop computer, but that's not running right now. I'll try to remember next week when I start it up. Good luck until then, -Jonathan
From: nausea1995 on 8 Jul 2006 00:08 bokubob wrote: > Hi John, > > I used a pretty nice on on my 49g+ for a while, but I messed up the > memory since then. I have it on my desktop computer, but that's not > running right now. I'll try to remember next week when I start it up. Sounds good, if you get a chance send it my way.
From: Paul Schlyter on 8 Jul 2006 05:42 In article <1152299626.088312.153230(a)35g2000cwc.googlegroups.com>, <nausea1995(a)gmail.com> wrote: > I wrote a long rant against HP, but decided not to post it. It doesn't > look hopeful to find such a program, the few that look like what I am > looking for are either in spanish, or for the 48. > > I like my HP and unfortanetely for myself cannot see myself using a > non-rpn calculator, but it is very frustrating to continuously come > across situations where software that would be very applicable in the > classroom has only been developed for TI. The reasons for this are > obvious, but it's still just as disheartening. Too bad Qonos is dead, > I understood it was planned to emulate HP and TI. Anyone care to > exlpain what kind of programming issues or whatever prevent someone > from emulating/porting appilcations written in TI language to HP? Well, start by asking yourself: why don't YOU do it? You do see the need, don't you? Pehaps your reason for not doing it is reflected in your comment: "for myself cannot see myself using a non-rpn calculator"? When porting a TI app to the HP, you'll have to use a TI, i.e. a non-rpn calculator - if you refuse to do that, you certainly won't port any TI apps to the HP. Otoh if you think it's OK to use a non-rpn calculator from time to time, maybe you'll see no need for a TI==>HP port either -- after all, you can run the app on the TI, right? The issue whether a calc is rpn or non.rpn is most important in manual calculations, and there rpn definitely has an edge: you see all intermediate results, and you can change your mind about how to proceed right in the middle of a computation. But when running a program written by someone else, the rpn vs non-rpn becomes a non-issue; after all, running the program mostly constitues entering the input data and then pressing some "execute" key. So perhaps this is the answer to your question about why so few TI apps are ported to the HP: it's not worth the effort. You don't think it's worth the effort either, or else you'd be doing it -- but of course it's always nice if someone else does the work.... :-) > Also, will the 50g be backwards compatible to run programs written for > 48 let alone 49? > > Thanks all. > ~John > > > nausea1995(a)gmail.com wrote: >> Hi, >> >> I am hoping to find a simple DC Circuit Simulator program for the 49g+. >> Circuitos looked good but despite being labeled on hpcalc.org as >> English/Spanish, I cannot figure out how to switch it to English. Does >> anyone have any suggestions? I don't need anything complicated, just >> enough for very simple dc circuits. >> >> Also, if anyone knows why I have to unplug/plug in my usb cabled each >> time I want to reconnect using Conn4x please let me know. -- ---------------------------------------------------------------- Paul Schlyter, Grev Turegatan 40, SE-114 38 Stockholm, SWEDEN e-mail: pausch at stockholm dot bostream dot se WWW: http://stjarnhimlen.se/
From: nausea1995 on 8 Jul 2006 12:58 Paul Schlyter wrote: > In article <1152299626.088312.153230(a)35g2000cwc.googlegroups.com>, > <nausea1995(a)gmail.com> wrote: > > > I wrote a long rant against HP, but decided not to post it. It doesn't > > look hopeful to find such a program, the few that look like what I am > > looking for are either in spanish, or for the 48. > > > > I like my HP and unfortanetely for myself cannot see myself using a > > non-rpn calculator, but it is very frustrating to continuously come > > across situations where software that would be very applicable in the > > classroom has only been developed for TI. The reasons for this are > > obvious, but it's still just as disheartening. Too bad Qonos is dead, > > I understood it was planned to emulate HP and TI. Anyone care to > > exlpain what kind of programming issues or whatever prevent someone > > from emulating/porting appilcations written in TI language to HP? > > Well, start by asking yourself: why don't YOU do it? You do see the need, > don't you? I don't have time with work and school, and usually don' t know very far in advance what sort of programs would help with upcoming material. Are you suggesting I carry around two graphing calculators? Do you have any other empty advice I can't use?
From: bokubob on 8 Jul 2006 15:56
Paul Schlyter wrote: > Well, start by asking yourself: why don't YOU do it? nausea1995(a)gmail.com wrote: > I don't have time with work and school, and usually don' t know very > far in advance what sort of programs would help with upcoming material. Actually, I think Paul has a good point. It would be best if you did it yourself. The reason that I didn't bother to load up that old program again is because it wasn't all that useful. It took quite a while to learn, and all that time was spent learning that software, rather than how to do the problems myself. What I ended up using was EQL+ (http://page.mi.fu-berlin.de/~raut/WR49/EQLplus.htm) with a user library that I filled with the equations that I needed, after I knew how they worked (along with any notes I'd need if I forgot when to use them) and then did the actual work with those equations. It's certainly a much better way to learn, and probably saves you a lot of time. It's also much more professor friendly, as you're still doing all the work. At least my professors would have been very surprised to not see any work when solving an 18 node circuit (for instance). It's probably not the answer you wanted. -Jonathan |