4 replies to this topic

[trumpet-205]

Okay, this is my first post here. I'm a college student taking differential equation right now. My major is Economics/Physics. He wants everyone in his class to have a graphic calculator without CAS.

I currently have HP50g, TI-84+ and Casio fx-7400G Plus. I know both 84 and 7400G Plus calculators can't do DE, and 50g is out of option. Right now I don't know which calculator to pick.

* TI-86 (I heard it can do DE)
* Casio fx-9860gii/G Slim

Or any other suggestion? I plan to sell my 84 and 7400G Plus.

Edited by trumpet-205, 01 February 2011 - 11:05 PM.

[pan.gejt]

TI-86 plot the solution only, no symbolic solving.
Casio fx-9860gii/G Slim cannot solve the DE- see http://www.casio.com...g/FX-9860GSlim/ and http://www.casio.com...echnical_Specs/.

edited: i found a collection of math programs including 2 programs for DE- "Slope field" and "Euler's and 4th Order Runge-Kutta Methods"
http://www.casiocalc...?showtopic=3655 and click the underlined link in the 2nd post (the file name is casprogs_oct2007_1.0.rar)

Edited by pan.gejt, 02 February 2011 - 07:12 AM.

[trumpet-205]

So TI-86 can graph slope field? That's very nice. So fx-9860 can only do numerical differentiation/integration but no graphing?

I don't think I can get my hands on a FX 1.0+, it cost $135 and I won't get it till weeks later.

[pan.gejt]

look at http://web.archive.o...il/us_ti86.html
user guide - http://education.ti....o...sults?cp=17