requesting a function

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Forum Attachments

Summary:

I would like to request a function in a program to be used later in the program.

requesting a function

Rich (guest) 26 Nov 2012 22:38

I posted this in a different forum so if you are seeing it for the second time I apologize, someone suggested I post it here as well.
I would like to prompt, input, request (or whatever) a function, store it as y1(x) (doesn't have to be y1(x) could be a(x) or anything else) and use the function later in a program. Here is an example although it clearly does not work.

Input "f(x)",f
f→ f(x,y)
Input "x",a
Input "y",b
Disp f(a,b)
Pause

The program will use two variables at most so no need to start using matrices. Any suggestions appreciated, I am fairly new to TI Basic so you might have to walk me though!

Rich (guest) 26 Nov 2012 22:39

Sorry…. This is for a TI-89, someone in another forum showed me how to do it on an 84, but their method doesn't work for 89

Re: requesting a function

Xeda Elnara 27 Nov 2012 00:06

Try something like this:

Input "f(x,y)",f  ;Now f is the function in terms of x and y
Input "x",x        ;input an X value
Input "y",y       ;Input a Y value
Disp f               ;This will evaluate f

I hope that helps!

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