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 | | http://functions.wolfram.com/05.10.26.0005.01 | 
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 | | SphericalHarmonicY[n, m, \[CurlyTheta], \[CurlyPhi]] == 
 (-1)^((m/2) (1 + Sign[m])) E^(I m \[CurlyPhi]) 
  Sqrt[((2 n + 1)/Pi) ((n + Abs[m])!/(n - Abs[m])!)] 
  ((Sin[\[CurlyTheta]]^2)^(Abs[m]/2)/(Abs[m]! 2^(Abs[m] + 1))) 
  Hypergeometric2F1[-n + Abs[m], n + Abs[m] + 1, Abs[m] + 1, 
   Sin[\[CurlyTheta]/2]^2] | 
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 | | Cell[BoxData[RowBox[List[RowBox[List["SphericalHarmonicY", "[", RowBox[List["n", ",", "m", ",", "\[CurlyTheta]", ",", "\[CurlyPhi]"]], "]"]], "\[Equal]", RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List[FractionBox["m", "2"], RowBox[List["(", RowBox[List["1", "+", RowBox[List["Sign", "[", "m", "]"]]]], ")"]]]]], " ", SuperscriptBox["\[ExponentialE]", RowBox[List["\[ImaginaryI]", " ", "m", " ", "\[CurlyPhi]"]]], " ", SqrtBox[RowBox[List[FractionBox[RowBox[List[RowBox[List["2", "n"]], "+", "1"]], "\[Pi]"], " ", FractionBox[RowBox[List[RowBox[List["(", RowBox[List["n", "+", RowBox[List["Abs", "[", "m", "]"]]]], ")"]], "!"]], RowBox[List[RowBox[List["(", RowBox[List["n", "-", RowBox[List["Abs", "[", "m", "]"]]]], ")"]], "!"]]]]]], " ", FractionBox[SuperscriptBox[RowBox[List["(", SuperscriptBox[RowBox[List["Sin", "[", "\[CurlyTheta]", "]"]], "2"], ")"]], RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "/", "2"]]], RowBox[List[RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "!"]], " ", SuperscriptBox["2", RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "+", "1"]]]]]], " ", RowBox[List["Hypergeometric2F1", "[", RowBox[List[RowBox[List[RowBox[List["-", "n"]], "+", RowBox[List["Abs", "[", "m", "]"]]]], ",", RowBox[List["n", "+", RowBox[List["Abs", "[", "m", "]"]], "+", "1"]], ",", RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "+", "1"]], ",", SuperscriptBox[RowBox[List["Sin", "[", FractionBox["\[CurlyTheta]", "2"], "]"]], "2"]]], "]"]]]]]]]] | 
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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>  <msubsup>  <mi> Y </mi>  <mi> n </mi>  <mi> m </mi>  </msubsup>  <mo> ( </mo>  <mrow>  <mi> ϑ </mi>  <mo> , </mo>  <mi> φ </mi>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mfrac>  <mrow>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mfrac>  <mi> m </mi>  <mn> 2 </mn>  </mfrac>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mi> sgn </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> m </mi>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  </msup>  <mo> ⁢ </mo>  <msup>  <mi> ⅇ </mi>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <mi> m </mi>  <mo> ⁢ </mo>  <mi> φ </mi>  </mrow>  </msup>  <mtext>   </mtext>  </mrow>  <mrow>  <mrow>  <mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[LeftBracketingBar]" </annotation>  </semantics>  <mi> m </mi>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[RightBracketingBar]" </annotation>  </semantics>  </mrow>  <mo> ! </mo>  </mrow>  <mo> ⁢ </mo>  <msup>  <mn> 2 </mn>  <mrow>  <mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[LeftBracketingBar]" </annotation>  </semantics>  <mi> m </mi>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[RightBracketingBar]" </annotation>  </semantics>  </mrow>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </msup>  </mrow>  </mfrac>  <mo> ⁢ </mo>  <msqrt>  <mfrac>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> n </mi>  </mrow>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mi> n </mi>  <mo> + </mo>  <mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[LeftBracketingBar]" </annotation>  </semantics>  <mi> m </mi>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[RightBracketingBar]" </annotation>  </semantics>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ! </mo>  </mrow>  </mrow>  <mrow>  <mi> π </mi>  <mo> ⁢ </mo>  <mrow>  <mrow>  <mo> ( </mo>  <mrow>  <mi> n </mi>  <mo> - </mo>  <mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[LeftBracketingBar]" </annotation>  </semantics>  <mi> m </mi>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[RightBracketingBar]" </annotation>  </semantics>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ! </mo>  </mrow>  </mrow>  </mfrac>  </msqrt>  <mo> ⁢ </mo>  <msup>  <mrow>  <msup>  <mi> sin </mi>  <mn> 2 </mn>  </msup>  <mo> ( </mo>  <mi> ϑ </mi>  <mo> ) </mo>  </mrow>  <mfrac>  <mrow>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[LeftBracketingBar]" </annotation>  </semantics>  <mi> m </mi>  <semantics>  <mo> ❘ </mo>  <annotation encoding='Mathematica'> "\[RightBracketingBar]" </annotation>  </semantics>  </mrow>  <mn> 2 </mn>  </mfrac>  </msup>  <mo> ⁢ </mo>  <semantics>  <mrow>  <mrow>  <msub>  <mo>   </mo>  <mn> 2 </mn>  </msub>  <msub>  <mi> F </mi>  <mn> 1 </mn>  </msub>  </mrow>  <mo> ⁡ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mrow>  <mrow>  <mo> ❘ </mo>  <mi> m </mi>  <mo> ❘ </mo>  </mrow>  <mo> - </mo>  <mi> n </mi>  </mrow>  <mo> , </mo>  <mrow>  <mi> n </mi>  <mo> + </mo>  <mrow>  <mo> ❘ </mo>  <mi> m </mi>  <mo> ❘ </mo>  </mrow>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  </mrow>  <mo> ; </mo>  <mrow>  <mrow>  <mo> ❘ </mo>  <mi> m </mi>  <mo> ❘ </mo>  </mrow>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  <mo> ; </mo>  <mrow>  <msup>  <mi> sin </mi>  <mn> 2 </mn>  </msup>  <mo> ( </mo>  <mfrac>  <mi> ϑ </mi>  <mn> 2 </mn>  </mfrac>  <mo> ) </mo>  </mrow>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <annotation encoding='Mathematica'> TagBox[TagBox[RowBox[List[RowBox[List[SubscriptBox["\[InvisiblePrefixScriptBase]", FormBox["2", TraditionalForm]], SubscriptBox["F", FormBox["1", TraditionalForm]]]], "\[InvisibleApplication]", RowBox[List["(", RowBox[List[TagBox[TagBox[RowBox[List[TagBox[RowBox[List[RowBox[List["\[LeftBracketingBar]", "m", "\[RightBracketingBar]"]], "-", "n"]], Hypergeometric2F1, Rule[Editable, True]], ",", TagBox[RowBox[List["n", "+", RowBox[List["\[LeftBracketingBar]", "m", "\[RightBracketingBar]"]], "+", "1"]], Hypergeometric2F1, Rule[Editable, True]]]], InterpretTemplate[Function[List[SlotSequence[1]]]]], Hypergeometric2F1, Rule[Editable, False]], ";", TagBox[TagBox[TagBox[RowBox[List[RowBox[List["\[LeftBracketingBar]", "m", "\[RightBracketingBar]"]], "+", "1"]], Hypergeometric2F1, Rule[Editable, True]], InterpretTemplate[Function[List[SlotSequence[1]]]]], Hypergeometric2F1, Rule[Editable, False]], ";", TagBox[RowBox[List[SuperscriptBox["sin", "2"], "(", FractionBox["\[CurlyTheta]", "2"], ")"]], Hypergeometric2F1, Rule[Editable, True]]]], ")"]]]], InterpretTemplate[Function[HypergeometricPFQ[Slot[1], Slot[2], Slot[3]]]], Rule[Editable, False]], Hypergeometric2F1] </annotation>  </semantics>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <eq />  <apply>  <ci> SphericalHarmonicY </ci>  <ci> n </ci>  <ci> m </ci>  <ci> ϑ </ci>  <ci> φ </ci>  </apply>  <apply>  <times />  <apply>  <times />  <apply>  <power />  <cn type='integer'> -1 </cn>  <apply>  <times />  <apply>  <times />  <ci> m </ci>  <apply>  <power />  <cn type='integer'> 2 </cn>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <apply>  <plus />  <apply>  <ci> Sign </ci>  <ci> m </ci>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </apply>  </apply>  <apply>  <power />  <exponentiale />  <apply>  <times />  <imaginaryi />  <ci> m </ci>  <ci> φ </ci>  </apply>  </apply>  <apply>  <power />  <apply>  <times />  <apply>  <factorial />  <apply>  <abs />  <ci> m </ci>  </apply>  </apply>  <apply>  <power />  <cn type='integer'> 2 </cn>  <apply>  <plus />  <apply>  <abs />  <ci> m </ci>  </apply>  <cn type='integer'> 1 </cn>  </apply>  </apply>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <apply>  <power />  <apply>  <times />  <apply>  <plus />  <apply>  <times />  <cn type='integer'> 2 </cn>  <ci> n </ci>  </apply>  <cn type='integer'> 1 </cn>  </apply>  <apply>  <factorial />  <apply>  <plus />  <ci> n </ci>  <apply>  <abs />  <ci> m </ci>  </apply>  </apply>  </apply>  <apply>  <power />  <apply>  <times />  <pi />  <apply>  <factorial />  <apply>  <plus />  <ci> n </ci>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <abs />  <ci> m </ci>  </apply>  </apply>  </apply>  </apply>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='rational'> 1 <sep /> 2 </cn>  </apply>  <apply>  <power />  <apply>  <power />  <apply>  <sin />  <ci> ϑ </ci>  </apply>  <cn type='integer'> 2 </cn>  </apply>  <apply>  <times />  <apply>  <abs />  <ci> m </ci>  </apply>  <apply>  <power />  <cn type='integer'> 2 </cn>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  <apply>  <ci> Hypergeometric2F1 </ci>  <apply>  <plus />  <apply>  <abs />  <ci> m </ci>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <ci> n </ci>  </apply>  </apply>  <apply>  <plus />  <ci> n </ci>  <apply>  <abs />  <ci> m </ci>  </apply>  <cn type='integer'> 1 </cn>  </apply>  <apply>  <plus />  <apply>  <abs />  <ci> m </ci>  </apply>  <cn type='integer'> 1 </cn>  </apply>  <apply>  <power />  <apply>  <sin />  <apply>  <times />  <ci> ϑ </ci>  <apply>  <power />  <cn type='integer'> 2 </cn>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  <cn type='integer'> 2 </cn>  </apply>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
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 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["SphericalHarmonicY", "[", RowBox[List["n_", ",", "m_", ",", "\[CurlyTheta]_", ",", "\[CurlyPhi]_"]], "]"]], "]"]], "\[RuleDelayed]", FractionBox[RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List[FractionBox["1", "2"], " ", "m", " ", RowBox[List["(", RowBox[List["1", "+", RowBox[List["Sign", "[", "m", "]"]]]], ")"]]]]], " ", SuperscriptBox["\[ExponentialE]", RowBox[List["\[ImaginaryI]", " ", "m", " ", "\[CurlyPhi]"]]], " ", SqrtBox[FractionBox[RowBox[List[RowBox[List["(", RowBox[List[RowBox[List["2", " ", "n"]], "+", "1"]], ")"]], " ", RowBox[List[RowBox[List["(", RowBox[List["n", "+", RowBox[List["Abs", "[", "m", "]"]]]], ")"]], "!"]]]], RowBox[List["\[Pi]", " ", RowBox[List[RowBox[List["(", RowBox[List["n", "-", RowBox[List["Abs", "[", "m", "]"]]]], ")"]], "!"]]]]]], " ", SuperscriptBox[RowBox[List["(", SuperscriptBox[RowBox[List["Sin", "[", "\[CurlyTheta]", "]"]], "2"], ")"]], FractionBox[RowBox[List["Abs", "[", "m", "]"]], "2"]], " ", RowBox[List["Hypergeometric2F1", "[", RowBox[List[RowBox[List[RowBox[List["-", "n"]], "+", RowBox[List["Abs", "[", "m", "]"]]]], ",", RowBox[List["n", "+", RowBox[List["Abs", "[", "m", "]"]], "+", "1"]], ",", RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "+", "1"]], ",", SuperscriptBox[RowBox[List["Sin", "[", FractionBox["\[CurlyTheta]", "2"], "]"]], "2"]]], "]"]]]], RowBox[List[RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "!"]], " ", SuperscriptBox["2", RowBox[List[RowBox[List["Abs", "[", "m", "]"]], "+", "1"]]]]]]]]]] | 
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 | | Date Added to functions.wolfram.com (modification date) | 
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