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PolyGammaSimplify
PolyGammaSimplify[expr]
transforms polygamma functions in expr, trying to either decrease the number of polygamma functions, or convert combinations of them into more elementary functions.
更多信息
- To use
, you first need to load the Developer Utilities Package using Needs["Developer`"]. 
is automatically used inside FullSimplify and FunctionExpand.
