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http://functions.wolfram.com/09.25.19.0004.01
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Arg[JacobiCD[x + I y, m]] == ArcTan[JacobiCN[x, m] JacobiDN[x, m]
JacobiDN[y, 1 - m] (JacobiCN[y, 1 - m]^2 + m JacobiSN[x, m]^2
JacobiSN[y, 1 - m]^2), JacobiCN[y, 1 - m] JacobiSN[x, m]
JacobiSN[y, 1 - m] (m JacobiCN[x, m]^2 - JacobiDN[x, m]^2
JacobiDN[y, 1 - m]^2)] /; Element[{x, y, m}, Reals]
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Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["Arg", "[", RowBox[List["JacobiCD", "[", RowBox[List[RowBox[List["x", "+", RowBox[List["\[ImaginaryI]", " ", "y"]]]], ",", "m"]], "]"]], "]"]], "\[Equal]", RowBox[List["ArcTan", "[", RowBox[List[RowBox[List[RowBox[List["JacobiCN", "[", RowBox[List["x", ",", "m"]], "]"]], " ", RowBox[List["JacobiDN", "[", RowBox[List["x", ",", "m"]], "]"]], " ", RowBox[List["JacobiDN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], " ", RowBox[List["(", RowBox[List[SuperscriptBox[RowBox[List["JacobiCN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], "2"], "+", RowBox[List["m", " ", SuperscriptBox[RowBox[List["JacobiSN", "[", RowBox[List["x", ",", "m"]], "]"]], "2"], " ", SuperscriptBox[RowBox[List["JacobiSN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], "2"]]]]], ")"]]]], ",", RowBox[List[RowBox[List["JacobiCN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], RowBox[List["JacobiSN", "[", RowBox[List["x", ",", "m"]], "]"]], " ", RowBox[List["JacobiSN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], " ", RowBox[List["(", RowBox[List[RowBox[List["m", " ", SuperscriptBox[RowBox[List["JacobiCN", "[", RowBox[List["x", ",", "m"]], "]"]], "2"]]], "-", RowBox[List[SuperscriptBox[RowBox[List["JacobiDN", "[", RowBox[List["x", ",", "m"]], "]"]], "2"], " ", SuperscriptBox[RowBox[List["JacobiDN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], "2"]]]]], ")"]]]]]], "]"]]]], "/;", RowBox[List[RowBox[List["{", RowBox[List["x", ",", "y", ",", "m"]], "}"]], "\[Element]", "Reals"]]]]]]
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<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mrow> <mi> arg </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> cd </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mrow> <mi> x </mi> <mo> + </mo> <mrow> <mi> ⅈ </mi> <mo> ⁢ </mo> <mi> y </mi> </mrow> </mrow> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mo> ) </mo> </mrow> <mo> ⩵ </mo> <mrow> <msup> <mi> tan </mi> <mrow> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> <mo> ( </mo> <mrow> <mrow> <mrow> <mi> cn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> x </mi> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mi> dn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> x </mi> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mi> dn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> y </mi> <mo> ❘ </mo> <mrow> <mn> 1 </mn> <mo> - </mo> <mi> m </mi> </mrow> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <msup> <mrow> <mi> cn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> y </mi> <mo> ❘ </mo> <mrow> <mn> 1 </mn> <mo> - </mo> <mi> m </mi> </mrow> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> <mo> + </mo> <mrow> <mi> m </mi> <mo> ⁢ </mo> <msup> <mrow> <mi> sn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> x </mi> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> <mo> ⁢ </mo> <msup> <mrow> <mi> sn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> y </mi> <mo> ❘ </mo> <mrow> <mn> 1 </mn> <mo> - </mo> <mi> m </mi> </mrow> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> </mrow> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> , </mo> <mrow> <mrow> <mi> cn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> y </mi> <mo> ❘ </mo> <mrow> <mn> 1 </mn> <mo> - </mo> <mi> m </mi> </mrow> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mi> sn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> x </mi> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mi> sn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> y </mi> <mo> ❘ </mo> <mrow> <mn> 1 </mn> <mo> - </mo> <mi> m </mi> </mrow> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mrow> <mi> m </mi> <mo> ⁢ </mo> <msup> <mrow> <mi> cn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> x </mi> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> </mrow> <mo> - </mo> <mrow> <msup> <mrow> <mi> dn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> x </mi> <mo> ❘ </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> <mo> ⁢ </mo> <msup> <mrow> <mi> dn </mi> <mo> ⁡ </mo> <mo> ( </mo> <mrow> <mi> y </mi> <mo> ❘ </mo> <mrow> <mn> 1 </mn> <mo> - </mo> <mi> m </mi> </mrow> </mrow> <mo> ) </mo> </mrow> <mn> 2 </mn> </msup> </mrow> </mrow> <mo> ) </mo> </mrow> </mrow> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> /; </mo> <mrow> <mrow> <mo> { </mo> <mrow> <mi> x </mi> <mo> , </mo> <mi> y </mi> <mo> , </mo> <mi> m </mi> </mrow> <mo> } </mo> </mrow> <mo> ∈ </mo> <semantics> <mi> ℝ </mi> <annotation encoding='Mathematica'> TagBox["\[DoubleStruckCapitalR]", Function[List[], Reals]] </annotation> </semantics> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <ci> Condition </ci> <apply> <eq /> <apply> <arg /> <apply> <ci> JacobiCD </ci> <apply> <plus /> <ci> x </ci> <apply> <times /> <imaginaryi /> <ci> y </ci> </apply> </apply> <ci> m </ci> </apply> </apply> <apply> <arctan /> <apply> <times /> <apply> <ci> JacobiCN </ci> <ci> x </ci> <ci> m </ci> </apply> <apply> <ci> JacobiDN </ci> <ci> x </ci> <ci> m </ci> </apply> <apply> <ci> JacobiDN </ci> <ci> y </ci> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <cn type='integer'> -1 </cn> <ci> m </ci> </apply> </apply> </apply> <apply> <plus /> <apply> <power /> <apply> <ci> JacobiCN </ci> <ci> y </ci> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <cn type='integer'> -1 </cn> <ci> m </ci> </apply> </apply> </apply> <cn type='integer'> 2 </cn> </apply> <apply> <times /> <ci> m </ci> <apply> <power /> <apply> <ci> JacobiSN </ci> <ci> x </ci> <ci> m </ci> </apply> <cn type='integer'> 2 </cn> </apply> <apply> <power /> <apply> <ci> JacobiSN </ci> <ci> y </ci> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <cn type='integer'> -1 </cn> <ci> m </ci> </apply> </apply> </apply> <cn type='integer'> 2 </cn> </apply> </apply> </apply> </apply> <apply> <times /> <apply> <ci> JacobiCN </ci> <ci> y </ci> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <cn type='integer'> -1 </cn> <ci> m </ci> </apply> </apply> </apply> <apply> <ci> JacobiSN </ci> <ci> x </ci> <ci> m </ci> </apply> <apply> <ci> JacobiSN </ci> <ci> y </ci> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <cn type='integer'> -1 </cn> <ci> m </ci> </apply> </apply> </apply> <apply> <plus /> <apply> <times /> <ci> m </ci> <apply> <power /> <apply> <ci> JacobiCN </ci> <ci> x </ci> <ci> m </ci> </apply> <cn type='integer'> 2 </cn> </apply> </apply> <apply> <times /> <cn type='integer'> -1 </cn> <apply> <times /> <apply> <power /> <apply> <ci> JacobiDN </ci> <ci> x </ci> <ci> m </ci> </apply> <cn type='integer'> 2 </cn> </apply> <apply> <power /> <apply> <ci> JacobiDN </ci> <ci> y </ci> <apply> <plus /> <cn type='integer'> 1 </cn> <apply> <times /> <cn type='integer'> -1 </cn> <ci> m </ci> </apply> </apply> </apply> <cn type='integer'> 2 </cn> </apply> </apply> </apply> </apply> </apply> </apply> </apply> <apply> <in /> <list> <ci> x </ci> <ci> y </ci> <ci> m </ci> </list> <reals /> </apply> </apply> </annotation-xml> </semantics> </math>
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| Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Arg", "[", RowBox[List["JacobiCD", "[", RowBox[List[RowBox[List["x_", "+", RowBox[List["\[ImaginaryI]", " ", "y_"]]]], ",", "m_"]], "]"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["ArcTan", "[", RowBox[List[RowBox[List[RowBox[List["JacobiCN", "[", RowBox[List["x", ",", "m"]], "]"]], " ", RowBox[List["JacobiDN", "[", RowBox[List["x", ",", "m"]], "]"]], " ", RowBox[List["JacobiDN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], " ", RowBox[List["(", RowBox[List[SuperscriptBox[RowBox[List["JacobiCN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], "2"], "+", RowBox[List["m", " ", SuperscriptBox[RowBox[List["JacobiSN", "[", RowBox[List["x", ",", "m"]], "]"]], "2"], " ", SuperscriptBox[RowBox[List["JacobiSN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], "2"]]]]], ")"]]]], ",", RowBox[List[RowBox[List["JacobiCN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], " ", RowBox[List["JacobiSN", "[", RowBox[List["x", ",", "m"]], "]"]], " ", RowBox[List["JacobiSN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], " ", RowBox[List["(", RowBox[List[RowBox[List["m", " ", SuperscriptBox[RowBox[List["JacobiCN", "[", RowBox[List["x", ",", "m"]], "]"]], "2"]]], "-", RowBox[List[SuperscriptBox[RowBox[List["JacobiDN", "[", RowBox[List["x", ",", "m"]], "]"]], "2"], " ", SuperscriptBox[RowBox[List["JacobiDN", "[", RowBox[List["y", ",", RowBox[List["1", "-", "m"]]]], "]"]], "2"]]]]], ")"]]]]]], "]"]], "/;", RowBox[List[RowBox[List["{", RowBox[List["x", ",", "y", ",", "m"]], "}"]], "\[Element]", "Reals"]]]]]]]] |
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Date Added to functions.wolfram.com (modification date)
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