How do you compute derivatives and integrals using the TI-83 calculator?

Question

Thanks!

Answer 1

Derivative

Math -> 8
nderiv(function, whatever it is with respect to - usually x, value)
ex. value at x=2 for the derivative of x^2
nderiv(x^2,x,2) = 4

Integral

Math -> 9
fnInt(function, with respect to, lower limit, upper limit)
ex. integral from e to e^2 of 1/x
fnint(1/x, x, e, e^2) = 1

Answer 2

It's the MATH function. You'll see nDer and fnInt both are in the form (function, variable, lower bound, upper bound)

For example, the intergral of x^2+x+1 on the interval [2,3] would look like

fnInt(x^2 + x + 1, x, 2, 3)

(Sorry, I don't have a calculator with me to reference and give you ebtter instructions.)

Answer 3

and to think all this time i've been doing it in my head...