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 Cot

 http://functions.wolfram.com/01.09.16.0058.01

 Input Form

 Cot[z] - I Tanh[z] == Cos[z Sqrt[2] E^((I Pi)/4)] Csc[z] Sech[z]

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["Cot", "[", "z", "]"]], "-", RowBox[List["\[ImaginaryI]", " ", RowBox[List["Tanh", "[", "z", "]"]]]]]], "\[Equal]", RowBox[List[RowBox[List["Cos", "[", RowBox[List["z", " ", SqrtBox["2"], SuperscriptBox["\[ExponentialE]", FractionBox[RowBox[List["\[ImaginaryI]", " ", "\[Pi]"]], "4"]]]], "]"]], " ", RowBox[List["Csc", "[", "z", "]"]], " ", RowBox[List["Sech", "[", "z", "]"]]]]]]]]

 MathML Form

 cot ( z ) - tanh ( z ) cos ( z 2 π 4 ) csc ( z ) sech ( z ) z -1 z z 2 1 2 4 -1 z z [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["Cot", "[", "z_", "]"]], "-", RowBox[List["\[ImaginaryI]", " ", RowBox[List["Tanh", "[", "z_", "]"]]]]]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["Cos", "[", RowBox[List["z", " ", SqrtBox["2"], " ", SuperscriptBox["\[ExponentialE]", FractionBox[RowBox[List["\[ImaginaryI]", " ", "\[Pi]"]], "4"]]]], "]"]], " ", RowBox[List["Csc", "[", "z", "]"]], " ", RowBox[List["Sech", "[", "z", "]"]]]]]]]]

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

 2003-08-21