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 Sinh

 http://functions.wolfram.com/01.19.27.0021.01

 Input Form

 Sinh[z] == (-I) ((2 Cot[(I z)/2])/(Cot[(I z)/2]^2 + 1))

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Sinh", "[", "z", "]"]], "\[Equal]", RowBox[List[RowBox[List["-", "\[ImaginaryI]"]], FractionBox[RowBox[List["2", " ", RowBox[List["Cot", "[", FractionBox[RowBox[List["\[ImaginaryI]", " ", "z"]], "2"], "]"]]]], RowBox[List[SuperscriptBox[RowBox[List["Cot", "[", FractionBox[RowBox[List["\[ImaginaryI]", " ", "z"]], "2"], "]"]], "2"], "+", "1"]]]]]]]]]

 MathML Form

 sinh ( z ) - 2 cot ( z 2 ) cot 2 ( z 2 ) + 1 z -1 2 z 2 -1 z 2 -1 2 1 -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Sinh", "[", "z_", "]"]], "]"]], "\[RuleDelayed]", RowBox[List["-", FractionBox[RowBox[List["\[ImaginaryI]", " ", RowBox[List["(", RowBox[List["2", " ", RowBox[List["Cot", "[", FractionBox[RowBox[List["\[ImaginaryI]", " ", "z"]], "2"], "]"]]]], ")"]]]], RowBox[List[SuperscriptBox[RowBox[List["Cot", "[", FractionBox[RowBox[List["\[ImaginaryI]", " ", "z"]], "2"], "]"]], "2"], "+", "1"]]]]]]]]]

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

 2001-10-29