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General Discussion => Other Discussions => Math and Science => Topic started by: TheCoder1998 on June 06, 2014, 12:18:02 pm

Title: Symbolic differential equation solver possible for ti84?
Post by: TheCoder1998 on June 06, 2014, 12:18:02 pm
Could it be possible to code a symbolic ordinary differential equation solver for the TI-84 using symbolic and prettyprint?
Like y(x)'=y(x) outputs y(x)=Ce^x
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: Streetwalrus on June 06, 2014, 12:36:07 pm
Technically everything is possible. Yes, you can even write a PS4 emulator in TI BASIC. :trollface:
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: TheCoder1998 on June 06, 2014, 12:43:51 pm
I can? :o
Well, i guess if i don't need to integrate symbolically (which is kinda the only thing i can't do) i can make an ODE solver right?
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: Streetwalrus on June 06, 2014, 12:44:45 pm
Yeah, with some clever string parser you can but it will be slow.
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: TheCoder1998 on June 06, 2014, 12:46:46 pm
Well, i'll try it out, i'll post the program when it's done :)
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: Streetwalrus on June 06, 2014, 12:48:06 pm
Good luck, have fun ! :D
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: Deep Toaster on June 08, 2014, 02:52:08 am
I don't know much about diffeqs, but I'd imagine that's at least on the difficulty level of a symbolic integration utility.

Something that might help is to look at the code for one of the symbolic differentiation programs out there.
Title: Re: Symbolic differential equation solver possible for ti84?
Post by: TheCoder1998 on June 08, 2014, 12:22:48 pm
Surprisingly, you don't need symbolic integration for solving every diffequ.
And they're not that much harder to solve than integrating.