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 JacobiDC

 http://functions.wolfram.com/09.28.27.0027.01

 Input Form

 JacobiDC[z, m]^2 == (1 - m Sin[JacobiAmplitude[z, m]]^2)/ Cos[JacobiAmplitude[z, m]]^2

 Standard Form

 Cell[BoxData[RowBox[List[SuperscriptBox[RowBox[List["JacobiDC", "[", RowBox[List["z", ",", "m"]], "]"]], "2"], "\[Equal]", FractionBox[RowBox[List["1", "-", RowBox[List["m", " ", SuperscriptBox[RowBox[List["Sin", "[", RowBox[List["JacobiAmplitude", "[", RowBox[List["z", ",", "m"]], "]"]], "]"]], "2"]]]]], SuperscriptBox[RowBox[List["Cos", "[", RowBox[List["JacobiAmplitude", "[", RowBox[List["z", ",", "m"]], "]"]], "]"]], "2"]]]]]]

 MathML Form

 dc ( z m ) 2 1 - m sin 2 ( am ( z m ) ) cos 2 ( am ( z m ) ) JacobiDC z m 2 1 -1 m JacobiAmplitude z m 2 JacobiAmplitude z m 2 -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", SuperscriptBox[RowBox[List["JacobiDC", "[", RowBox[List["z_", ",", "m_"]], "]"]], "2"], "]"]], "\[RuleDelayed]", FractionBox[RowBox[List["1", "-", RowBox[List["m", " ", SuperscriptBox[RowBox[List["Sin", "[", RowBox[List["JacobiAmplitude", "[", RowBox[List["z", ",", "m"]], "]"]], "]"]], "2"]]]]], SuperscriptBox[RowBox[List["Cos", "[", RowBox[List["JacobiAmplitude", "[", RowBox[List["z", ",", "m"]], "]"]], "]"]], "2"]]]]]]

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

 2007-05-02