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 | | http://functions.wolfram.com/01.18.07.0004.01 | 
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 | | ArcSec[z] == Pi/2 - (1/(2 Sqrt[Pi] z)) (1/(2 Pi I)) 
    ContourIntegrate[(Gamma[s] Gamma[1/2 + s] Gamma[1/2 - s]^2)/
      (1 - 1/z^2)^s, {s, \[ScriptCapitalL]}] /; Abs[Arg[1 - z^(-2)]] < Pi | 
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 | | Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["ArcSec", "[", "z", "]"]], "\[Equal]", RowBox[List[FractionBox["\[Pi]", "2"], "-", RowBox[List[FractionBox["1", RowBox[List["2", " ", SqrtBox["\[Pi]"], "z"]]], " ", FractionBox["1", RowBox[List[RowBox[List["2", " ", "\[Pi]", " ", "\[ImaginaryI]"]], " "]]], RowBox[List["ContourIntegrate", "[", RowBox[List[RowBox[List[RowBox[List["Gamma", "[", "s", "]"]], RowBox[List["Gamma", "[", RowBox[List[FractionBox["1", "2"], "+", "s"]], "]"]], " ", SuperscriptBox[RowBox[List["Gamma", "[", RowBox[List[FractionBox["1", "2"], "-", "s"]], "]"]], "2"], SuperscriptBox[RowBox[List["(", RowBox[List["1", "-", FractionBox["1", SuperscriptBox["z", "2"]]]], ")"]], RowBox[List["-", "s"]]]]], ",", RowBox[List["{", RowBox[List["s", ",", "\[ScriptCapitalL]"]], "}"]]]], "]"]]]]]]]], "/;", " ", RowBox[List[RowBox[List["Abs", "[", RowBox[List["Arg", "[", RowBox[List["1", "-", SuperscriptBox["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>  <mrow>  <msup>  <mi> sec </mi>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msup>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mfrac>  <mi> π </mi>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <msqrt>  <mi> π </mi>  </msqrt>  <mo> ⁢ </mo>  <mi> z </mi>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  <mo> ⁢ </mo>  <mi> ⅈ </mi>  </mrow>  </mfrac>  <mo> ⁢ </mo>  <mrow>  <msub>  <mo> ∫ </mo>  <mi> ℒ </mi>  </msub>  <mrow>  <mrow>  <mi> Γ </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> s </mi>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mi> Γ </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mi> s </mi>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <msup>  <mrow>  <mi> Γ </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mi> s </mi>  </mrow>  <mo> ) </mo>  </mrow>  <mn> 2 </mn>  </msup>  <mo> ⁢ </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> z </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> - </mo>  <mi> s </mi>  </mrow>  </msup>  <mo> ⁢ </mo>  <mrow>  <mo> ⅆ </mo>  <mi> s </mi>  </mrow>  </mrow>  </mrow>  </mrow>  </mrow>  </mrow>  <mo> /; </mo>  <mrow>  <mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[LeftBracketingBar]" </annotation>  </semantics>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <msup>  <mi> z </mi>  <mrow>  <mo> - </mo>  <mn> 2 </mn>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[RightBracketingBar]" </annotation>  </semantics>  </mrow>  <mo> < </mo>  <mi> π </mi>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <ci> FormBox </ci>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> SuperscriptBox </ci>  <ms> sec </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> - </ms>  <ms> 1 </ms>  </list>  </apply>  </apply>  <ms> ( </ms>  <ms> z </ms>  <ms> ) </ms>  </list>  </apply>  <ms> ⩵ </ms>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> FractionBox </ci>  <ms> π </ms>  <ms> 2 </ms>  </apply>  <ms> - </ms>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> FractionBox </ci>  <ms> 1 </ms>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> RowBox </ci>  <list>  <ms> ( </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> 2 </ms>  <apply>  <ci> SqrtBox </ci>  <ms> π </ms>  </apply>  <ms> z </ms>  </list>  </apply>  <ms> ) </ms>  </list>  </apply>  <ms> 2 </ms>  <ms> π </ms>  <ms> ⅈ </ms>  </list>  </apply>  </apply>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> SubscriptBox </ci>  <apply>  <ci> ErrorBox </ci>  <ms> ∫ </ms>  </apply>  <ms> ℒ </ms>  </apply>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> RowBox </ci>  <list>  <ms> Γ </ms>  <ms> ( </ms>  <ms> s </ms>  <ms> ) </ms>  </list>  </apply>  <apply>  <ci> RowBox </ci>  <list>  <ms> Γ </ms>  <ms> ( </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> s </ms>  <ms> + </ms>  <apply>  <ci> FractionBox </ci>  <ms> 1 </ms>  <ms> 2 </ms>  </apply>  </list>  </apply>  <ms> ) </ms>  </list>  </apply>  <apply>  <ci> SuperscriptBox </ci>  <apply>  <ci> RowBox </ci>  <list>  <ms> Γ </ms>  <ms> ( </ms>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> FractionBox </ci>  <ms> 1 </ms>  <ms> 2 </ms>  </apply>  <ms> - </ms>  <ms> s </ms>  </list>  </apply>  <ms> ) </ms>  </list>  </apply>  <ms> 2 </ms>  </apply>  <apply>  <ci> SuperscriptBox </ci>  <apply>  <ci> RowBox </ci>  <list>  <ms> ( </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> 1 </ms>  <ms> - </ms>  <apply>  <ci> FractionBox </ci>  <ms> 1 </ms>  <apply>  <ci> SuperscriptBox </ci>  <ms> z </ms>  <ms> 2 </ms>  </apply>  </apply>  </list>  </apply>  <ms> ) </ms>  </list>  </apply>  <apply>  <ci> RowBox </ci>  <list>  <ms> - </ms>  <ms> s </ms>  </list>  </apply>  </apply>  <apply>  <ci> RowBox </ci>  <list>  <ms> ⅆ </ms>  <ms> s </ms>  </list>  </apply>  </list>  </apply>  </list>  </apply>  </list>  </apply>  </list>  </apply>  </list>  </apply>  <ms> /; </ms>  <apply>  <ci> RowBox </ci>  <list>  <apply>  <ci> RowBox </ci>  <list>  <ms>  </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> arg </ms>  <ms> ( </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> 1 </ms>  <ms> - </ms>  <apply>  <ci> SuperscriptBox </ci>  <ms> z </ms>  <apply>  <ci> RowBox </ci>  <list>  <ms> - </ms>  <ms> 2 </ms>  </list>  </apply>  </apply>  </list>  </apply>  <ms> ) </ms>  </list>  </apply>  <ms>  </ms>  </list>  </apply>  <ms> < </ms>  <ms> π </ms>  </list>  </apply>  </list>  </apply>  <ci> TraditionalForm </ci>  </apply>  </annotation-xml>  </semantics>  </math> 
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 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["ArcSec", "[", "z_", "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List[FractionBox["\[Pi]", "2"], "-", FractionBox[RowBox[List["ContourIntegrate", "[", RowBox[List[RowBox[List[RowBox[List["Gamma", "[", "s", "]"]], " ", RowBox[List["Gamma", "[", RowBox[List[FractionBox["1", "2"], "+", "s"]], "]"]], " ", SuperscriptBox[RowBox[List["Gamma", "[", RowBox[List[FractionBox["1", "2"], "-", "s"]], "]"]], "2"], " ", SuperscriptBox[RowBox[List["(", RowBox[List["1", "-", FractionBox["1", SuperscriptBox["z", "2"]]]], ")"]], RowBox[List["-", "s"]]]]], ",", RowBox[List["{", RowBox[List["s", ",", "\[ScriptCapitalL]"]], "}"]]]], "]"]], RowBox[List[RowBox[List["(", RowBox[List["2", " ", SqrtBox["\[Pi]"], " ", "z"]], ")"]], " ", RowBox[List["(", RowBox[List["2", " ", "\[Pi]", " ", "\[ImaginaryI]"]], ")"]]]]]]], "/;", RowBox[List[RowBox[List["Abs", "[", RowBox[List["Arg", "[", RowBox[List["1", "-", FractionBox["1", SuperscriptBox["z", "2"]]]], "]"]], "]"]], "<", "\[Pi]"]]]]]]]] | 
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 | | Date Added to functions.wolfram.com (modification date) | 
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