InverseMellin[exp, y] performs the inverse Mellin transform of polynomials in OPEm. The inverse transforms are not calculated but a table-lookup is done. WARNING: do not "trust" the results for the inverse Mellin transform involving SumT's; there is an unresolved inconsistency here (related to
See also: DeltaFunction, Integrate2, OPEm, SumS, SumT.
The inverse operation to InverseMellin is done by Integrate2.
Below is a list of all built-in basic inverse Mellin transforms .
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