The syntax is:
The numerical integration option approximates the definite integral of expression with respect to variable from startValue to endValue.
tolis used to determine how accurate to calculate the integral. The TI tries to keep the absolute error under
tol. 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?.