  
| 
 | 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  
  | 
  
  | 
 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  
  | 
  
  | 
 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  
  | 
  
  | 
 
 
  
  | 
  
  | 
  
  | 
 
  
  
 |  
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  | 
   http://functions.wolfram.com/10.08.09.0001.01
   |   
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  
 |  
 | 
  
  | 
 
  
  
 |  
  
  | 
  
  | 
  
  | 
 
  
  | 
    
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  | 
    PolyLog[2, z] == Limit[(Hypergeometric2F1[\[CurlyEpsilon], \[CurlyEpsilon], 
     1, z] - 1)/\[CurlyEpsilon]^2, \[CurlyEpsilon] -> 0] 
   |   
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  
 |  
  
  | 
  
  | 
  
  | 
 
  
  | 
    
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  | 
   Cell[BoxData[RowBox[List[RowBox[List["PolyLog", "[", RowBox[List["2", ",", "z"]], "]"]], "\[Equal]", RowBox[List["Limit", "[", RowBox[List[FractionBox[RowBox[List[RowBox[List["Hypergeometric2F1", "[", RowBox[List["\[CurlyEpsilon]", ",", "\[CurlyEpsilon]", ",", "1", ",", "z"]], "]"]], "-", "1"]], SuperscriptBox["\[CurlyEpsilon]", "2"]], ",", RowBox[List["\[CurlyEpsilon]", "\[Rule]", "0"]]]], "]"]]]]]] 
   |   
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  
 |  
  
  | 
  
  | 
  
  | 
 
  
  | 
    
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  
  | 
  
  | 
 
  
  | 
 
  | 
   
   <math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'>  <semantics>  <mrow>  <mrow>  <msub>  <semantics>  <mi> Li </mi>  <annotation-xml encoding='MathML-Content'>  <ci> PolyLog </ci>  </annotation-xml>  </semantics>  <mn> 2 </mn>  </msub>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <munder>  <mi> lim </mi>  <mrow>  <mi> ε </mi>  <semantics>  <mo> → </mo>  <annotation encoding='Mathematica'> "\[Rule]" </annotation>  </semantics>  <mn> 0 </mn>  </mrow>  </munder>  <mo> ⁢ </mo>  <mtext>   </mtext>  <mfrac>  <mrow>  <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>  <mi> ε </mi>  <mo> , </mo>  <mi> ε </mi>  </mrow>  <mo> ; </mo>  <mn> 1 </mn>  <mo> ; </mo>  <mi> z </mi>  </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["\[CurlyEpsilon]", Hypergeometric2F1, Rule[Editable, True]], ",", TagBox["\[CurlyEpsilon]", Hypergeometric2F1, Rule[Editable, True]]]], InterpretTemplate[Function[List[SlotSequence[1]]]]], Hypergeometric2F1, Rule[Editable, False]], ";", TagBox[TagBox[TagBox["1", Hypergeometric2F1, Rule[Editable, True]], InterpretTemplate[Function[List[SlotSequence[1]]]]], Hypergeometric2F1, Rule[Editable, False]], ";", TagBox["z", Hypergeometric2F1, Rule[Editable, True]]]], ")"]]]], InterpretTemplate[Function[HypergeometricPFQ[Slot[1], Slot[2], Slot[3]]]], Rule[Editable, False]], Hypergeometric2F1] </annotation>  </semantics>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <msup>  <mi> ε </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <eq />  <apply>  <ci> PolyLog </ci>  <cn type='integer'> 2 </cn>  <ci> z </ci>  </apply>  <apply>  <limit />  <bvar>  <ci> ε </ci>  </bvar>  <condition>  <apply>  <tendsto />  <ci> ε </ci>  <cn type='integer'> 0 </cn>  </apply>  </condition>  <apply>  <times />  <apply>  <plus />  <apply>  <ci> Hypergeometric2F1 </ci>  <ci> ε </ci>  <ci> ε </ci>  <cn type='integer'> 1 </cn>  <ci> z </ci>  </apply>  <cn type='integer'> -1 </cn>  </apply>  <apply>  <power />  <apply>  <power />  <ci> ε </ci>  <cn type='integer'> 2 </cn>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
   
   |   
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
 
  |   
  |  
  |  
  |   
  |  |  
  |   
  |  
  |  
  |   
  | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["PolyLog", "[", RowBox[List["2", ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["Limit", "[", RowBox[List[FractionBox[RowBox[List[RowBox[List["Hypergeometric2F1", "[", RowBox[List["\[CurlyEpsilon]", ",", "\[CurlyEpsilon]", ",", "1", ",", "z"]], "]"]], "-", "1"]], SuperscriptBox["\[CurlyEpsilon]", "2"]], ",", RowBox[List["\[CurlyEpsilon]", "\[Rule]", "0"]]]], "]"]]]]]]  |  
  |  
  |   
  |  
  |  
  | 
  
  
 |  
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  | 
   Date Added to functions.wolfram.com (modification date)
   |   
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
  
  | 
 
  
  | 
  
  | 
 
  
  | 
  
  | 
  
  | 
 
 | 
  | 
  
  
  
 |  
 
 |