Author Topic: Symbolic differential equation solver possible for ti84?  (Read 6052 times)

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Offline TheCoder1998

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Symbolic differential equation solver possible for ti84?
« 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
« Last Edit: June 06, 2014, 12:31:12 pm by TheCoder1998 »
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Offline Streetwalrus

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Re: Symbolic differential equation solver possible for ti84?
« Reply #1 on: June 06, 2014, 12:36:07 pm »
Technically everything is possible. Yes, you can even write a PS4 emulator in TI BASIC. :trollface:

Offline TheCoder1998

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Re: Symbolic differential equation solver possible for ti84?
« Reply #2 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?
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Offline Streetwalrus

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Re: Symbolic differential equation solver possible for ti84?
« Reply #3 on: June 06, 2014, 12:44:45 pm »
Yeah, with some clever string parser you can but it will be slow.

Offline TheCoder1998

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Re: Symbolic differential equation solver possible for ti84?
« Reply #4 on: June 06, 2014, 12:46:46 pm »
Well, i'll try it out, i'll post the program when it's done :)
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Offline Streetwalrus

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Re: Symbolic differential equation solver possible for ti84?
« Reply #5 on: June 06, 2014, 12:48:06 pm »
Good luck, have fun ! :D

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Re: Symbolic differential equation solver possible for ti84?
« Reply #6 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.




Offline TheCoder1998

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Re: Symbolic differential equation solver possible for ti84?
« Reply #7 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.
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