[tex] f(x) = 2x^3 [1,3] [/tex]
[tex] \int_1^3 2xdx [/tex]
My TI-89 came with a booklet, such things were described there.
I would be not surprised if the same booklet is available from the TI site.
But I don't feel like checking now, so I just tried integrate(2x^3,x,1,3) - and it worked.
It works, I never knew you could do that. I went on to summations, etc., as I am in Pre-Calculus and we go through all the steps, definition of integral and the such...
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