TIB: Maths...


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TIB: Maths...




Hi guys !

I sent this message one week ago, but I'haven't had any answer :-((
Is this to easy for you ? Nobody on ti-basic list never wanted to calculate
derivatives ?? Thank you for your answer ;-)


I'd like to have a derivative program on my ti85.
Does a program could calculate the deritative f'(x) for a given f(x) ?
Does it exists ?

Or, I'd like to make one, here is my idea :
I enter a f(x) -y1 and f'(x) - y2. I make a program which calculates some
der1(y1,x,...). After, I ask the calc to calculate the same x values
for y2. And I make tests to compare them.
But I don't know how to do this program.
Could anyone help me ?
Has someone got a better idea for a "derivative" checker program ?
Does this program exists ?

Brice-Oliver