to access the numerical integration option
which approximates the definite integral
of an expression with respect to a variable from a start value to an end value.
Next, enter an expression, the variable, a start value, and an end value
separated by commas. For example, to find the antiderivative of x3
evaluated from x = 1 to x = 2, enter
Note: The value of tolerance,
tol is used to determine how accurate to calculate
the integral. The TI tries to keep the absolute error under
A smaller value yields a more accurate integral but takes longer to compute.
It can be changed in the tolerance editor available by pressing
typically about 0.001.
For more specific information and tips see
Integration on the
TI-how does it work?.