HP 32SII Owner's Manual page 340

calculation of the integral of any function will be prolonged if the interval of
integration includes mostly regions where the function is not interesting.
Fortunately, if you must calculate such an integral, you can modify the
problem so that the calculation time is considerably reduced. Two such
techniques are subdividing the interval of integration and transformation of
variables. These methods enable you to change the function or the limits of
integration so that the integrand is better behaved over the intervals) of
integration.
D–10 More about Integration
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17 .7 x 25.2 cm