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 PolyGamma

 http://functions.wolfram.com/06.15.04.0014.01

 Input Form

 BranchCuts[PolyGamma[\[Nu], z], z] == {} /; Element[\[Nu], Integers] && \[Nu] >= 0

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["BranchCuts", "[", RowBox[List[RowBox[List["PolyGamma", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], ",", "z"]], "]"]], "\[Equal]", RowBox[List["{", "}"]]]], "/;", RowBox[List[RowBox[List["\[Nu]", "\[Element]", "Integers"]], "\[And]", RowBox[List["\[Nu]", "\[GreaterEqual]", "0"]]]]]]]]

 MathML Form

 ℬ𝒞 z ( ψ TagBox["\[Psi]", PolyGamma] ( ν ) ( z ) ) { } /; ν TagBox["\[DoubleStruckCapitalN]", Function[Integers]] Condition Subscript ℬ𝒞 z PolyGamma ν z ν [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["BranchCuts", "[", RowBox[List[RowBox[List["PolyGamma", "[", RowBox[List["\[Nu]_", ",", "z_"]], "]"]], ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["{", "}"]], "/;", RowBox[List[RowBox[List["\[Nu]", "\[Element]", "Integers"]], "&&", RowBox[List["\[Nu]", "\[GreaterEqual]", "0"]]]]]]]]]]

 Date Added to functions.wolfram.com (modification date)

 2001-10-29