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http://functions.wolfram.com/12.02.16.0087.01
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Arg[E^(I z)] == Pi - Mod[Pi - Re[z], 2 Pi]
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Cell[BoxData[RowBox[List[RowBox[List["Arg", "[", SuperscriptBox["\[ExponentialE]", RowBox[List["\[ImaginaryI]", " ", "z"]]], "]"]], "\[Equal]", RowBox[List["\[Pi]", "-", RowBox[List["Mod", "[", RowBox[List[RowBox[List["\[Pi]", "-", RowBox[List["Re", "[", "z", "]"]]]], ",", RowBox[List["2", " ", "\[Pi]"]]]], "]"]]]]]]]]
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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> <mi> arg </mi> <mo> ⁡ </mo> <mo> ( </mo> <msup> <mi> ⅇ </mi> <mrow> <mi> ⅈ </mi> <mo> ⁢ </mo> <mi> z </mi> </mrow> </msup> <mo> ) </mo> </mrow> <mo> ⩵ </mo> <mrow> <mi> π </mi> <mo> - </mo> <semantics> <mrow> <mrow> <mo> ( </mo> <mrow> <mi> π </mi> <mo> - </mo> <mrow> <mi> Re </mi> <mo> ⁡ </mo> <mo> ( </mo> <mi> z </mi> <mo> ) </mo> </mrow> </mrow> <mo> ) </mo> </mrow> <mo> ⁢ </mo> <mi> mod </mi> <mo> ⁢ </mo> <mrow> <mo> ( </mo> <mrow> <mn> 2 </mn> <mo> ⁢ </mo> <mi> π </mi> </mrow> <mo> ) </mo> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <rem /> <apply> <plus /> <pi /> <apply> <times /> <cn type='integer'> -1 </cn> <apply> <real /> <ci> $CellContext`z </ci> </apply> </apply> </apply> <apply> <times /> <cn type='integer'> 2 </cn> <pi /> </apply> </apply> </annotation-xml> </semantics> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <eq /> <apply> <arg /> <apply> <power /> <exponentiale /> <apply> <times /> <imaginaryi /> <ci> z </ci> </apply> </apply> </apply> <apply> <plus /> <pi /> <apply> <times /> <cn type='integer'> -1 </cn> <apply> <rem /> <apply> <plus /> <pi /> <apply> <times /> <cn type='integer'> -1 </cn> <apply> <real /> <ci> $CellContext`z </ci> </apply> </apply> </apply> <apply> <times /> <cn type='integer'> 2 </cn> <pi /> </apply> </apply> </apply> </apply> </apply> </annotation-xml> </semantics> </math>
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| Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Arg", "[", SuperscriptBox["\[ExponentialE]", RowBox[List["\[ImaginaryI]", " ", "z_"]]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["\[Pi]", "-", RowBox[List["Mod", "[", RowBox[List[RowBox[List["\[Pi]", "-", RowBox[List["Re", "[", "z", "]"]]]], ",", RowBox[List["2", " ", "\[Pi]"]]]], "]"]]]]]]]] |
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Date Added to functions.wolfram.com (modification date)
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