HP 50g Graphing Calculator - Manual (Page 452)

Page 13-17
The following example shows the evaluation of a definite integral in the
Equation Writer, step-by-step:
ʳʳʳʳʳ
Notice that the step-by-step process provides information on the intermediate
steps followed by the CAS to solve this integral. First, CAS identifies a square
root integral, next, a rational fraction, and a second rational expression, to
come up with the final result. Notice that these steps make a lot of sense to the
calculator, although not enough information is provided to the user on the
individual steps.
Integrating an equation
Integrating an equation is straightforward, the calculator simply integrates both
sides of the equation simultaneously, e.g.,