50g

You can derive one by one variable, not too at same time.




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Marcus Fazzi
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Is T supposed to be a function of X? If not, it will be treated as a constant.

If it is a function of X then you can proceed as follows. I'll make it a little more interesting and say you want to integrate 2*T + X^2. And lets say T is X^3. You can define a T by...

enter 'X^3' on the stack
enter 'T' on the stack
execute STO to store X^3 into T; you'll see the T in your softmenu now

Now if you execute INTVX in your calculus menu, it will integrate the whole thing as if you had written 2*X^3 + X^2

If you want, you can write 2*T(X) + X^2. Then proceed as follows...

enter 'T(X)=X^3' on the stack
execute DEF

Now when you execute INTVX, you'll get the same result.

--- On Thu, 9/10/09, J <professorman40@...> wrote:

From: J <professorman40@...>
Subject: [50g] where is variable t
To: 50g@yahoogroups.com
Date: Thursday, September 10, 2009, 3:59 AM

Hello everyone

1) I need to find the anti-derivative to the following: 6*t*X

2) how to I enter the t and the X?

3) How do I procede?

4) Does anyone know of materials on how to do this?  (not the manual, which does not help ME much).