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| What calculator do you use ? |
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| Zad:
I wonder for what range of values the solution "a pocket calculator" is optimal, when the question is "I need to draw colour 3D graphs and models". What did you do to break so many calculators? I'm still using my HP28S from 1989, and my Casio fx-2600P from 1983ish. |
| ErikTheNorwegian:
--- Quote from: Zad on November 12, 2012, 11:31:10 pm ---I wonder for what range of values the solution "a pocket calculator" is optimal, when the question is "I need to draw colour 3D graphs and models". What did you do to break so many calculators? I'm still using my HP28S from 1989, and my Casio fx-2600P from 1983ish. --- End quote --- I study at the moment Quantum Stochastic Calculus.. (Class is part of a "junior" study at CERN, same class is also found at MIT and Cornell in the US.) Quantum Algebra (math.QA) so the TI is perfect.. but for the heavier calculations we use wolfram for the more complex models. But for the understanding of covariant differential calculus, the Ti-nspire is at it best. I have been using them "on site", ex the 4 years before the winter Olympics, i had one in my pocket all the time when we delivered all the sound reinforcement equipment. In all weather, on building sites, in rigs high over ground, in skislopes and in all temperatures. We had down to minus 32c in the nights when we had to reconfigure the speaker settings and directions in the slopes when they moved the track for the next day. The HPs did ok in about 5-10 minuts, they they gracefully dided, or the lcd froze, then it was to slip inside the jacket, pull out another one that was warm and start again. The warm cold change made humidety to build up, so they did not work well after that tretment. :D Its not all of us that sit by a table all day, some has to work out on building sites, like the Gardemoen airport, did electroacoustics there. But i have a calculator from 1976.. still up and running besides my casio FX-720P- like new.. two Ti-nspire models like brand new.. Today i my needs are coverd by the Ti, i dont have to move around with a laptop. So to my needs, its just perfect, size- but keyboard is small , but i manage well. (I`m now in a weelchair and its difficult to move around with just that so evry ounce les to move around is great.). |
| mark5009:
+1 for the HP-15C Got mine back in the mid-80s as part of doing my EE and it hasn't missed a beat since. In addition, if no-one else has mentioned it, there is a brilliant TCL/TK version of the 15C out there. It has become my go-to desktop calculator http://hp-15c.homepage.t-online.de/content_web.htm .. mark. |
| rr100:
I love this thread and I used many and love some of the devices presented here (more than I usually love anything that has buttons and eats electricity). And I am a "power user", I wrote programs for most of them (except for Sharp PC-1xxx series which I never dug) and I had good experience with all clases of devices (notable exception for newer TIs maybe). I troll ebay regularly for some Casio, Sharp, HP or TI that might catch my eye. BUT I really can't use them anymore for anything more than simple calculations. I could get some HP48 in good conditions a while ago but really I couldn't do anything efficiently on it, except for making fun of friends who can't use it to do 3x2. I have a TI-89 I actually used for a long while and boy it's frustrating to use. Yes, I know it's from before 2000 but even then I've been spoiled by Maple (even as far back as 1995 or so). Yes, it can do CAS but you can guess it doesn't mean much for a Maple user. It's not a failure of one particular device, it's just the limitations of the number of keys, screen size/resolution and processing power. If you have a big screen and a full keyboard of course you can just have some nice worksheet and source code and everything layed out in front of you. But if you are limited you need to assign multiple tasks to the same button, have shortcuts you need to keep in your head, etc. |
| Jacob:
Casio calculator is the best for the math and all other works like small working..but in my point of view calculator is not used in small question like 45*2 these type of question is not for the calculator that it give the answer... |
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