HP 49g+ User Manual page 447

At this point, you can press ` to return the integral to the stack, which will
show the following entry (ALG mode shown):
This is the general format for the definite integral when typed directly into the
stack, i.e., ∫ (lower limit, upper limit, integrand, variable of integration)
Pressing ` at this point will evaluate the integral in the stack:
The integral can be evaluated also in the Equation Writer by selecting the
entire expression an using the soft menu key @EVAL.
Step-by-step evaluation of derivatives and integrals
With the Step Step option in the CAS MODES windows selected (see Chapter
/
1), the evaluation of derivatives and integrals will be shown step by step. For
example, here is the evaluation of a derivative in the Equation Writer:
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