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 | | http://functions.wolfram.com/01.04.27.0059.01 | 
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 | | Log[ProductLog[k, z]] == Log[z] - ProductLog[k, z] + 2 I Pi k | 
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 | | Cell[BoxData[RowBox[List[RowBox[List["Log", "[", RowBox[List["ProductLog", "[", RowBox[List["k", ",", "z"]], "]"]], "]"]], "\[Equal]", RowBox[List[RowBox[List["Log", "[", "z", "]"]], "-", RowBox[List["ProductLog", "[", RowBox[List["k", ",", "z"]], "]"]], "+", RowBox[List["2", " ", "\[ImaginaryI]", " ", "\[Pi]", " ", "k"]]]]]]]] | 
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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> log </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mstyle fontweight='normal' fontstyle='normal'>  <msub>  <mi> W </mi>  <mi> k </mi>  </msub>  </mstyle>  <mo> ( </mo>  <mi fontweight='normal' fontstyle='italic'> z </mi>  <mo fontweight='normal' fontstyle='normal'> ) </mo>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <mi> π </mi>  <mo> ⁢ </mo>  <mi> k </mi>  </mrow>  <mo> + </mo>  <mrow>  <mi> log </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  <mo> - </mo>  <mrow>  <mstyle fontweight='normal' fontstyle='normal'>  <msub>  <mi> W </mi>  <mi> k </mi>  </msub>  </mstyle>  <mo> ( </mo>  <mi fontweight='normal' fontstyle='italic'> z </mi>  <mo fontweight='normal' fontstyle='normal'> ) </mo>  </mrow>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <eq />  <apply>  <ln />  <apply>  <apply>  <ci> Subscript </ci>  <ci> W </ci>  <ci> k </ci>  </apply>  <ci> z </ci>  </apply>  </apply>  <apply>  <plus />  <apply>  <times />  <cn type='integer'> 2 </cn>  <imaginaryi />  <pi />  <ci> k </ci>  </apply>  <apply>  <ln />  <ci> z </ci>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <apply>  <ci> Subscript </ci>  <ci> W </ci>  <ci> k </ci>  </apply>  <ci> z </ci>  </apply>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
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 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Log", "[", RowBox[List["ProductLog", "[", RowBox[List["k_", ",", "z_"]], "]"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["Log", "[", "z", "]"]], "-", RowBox[List["ProductLog", "[", RowBox[List["k", ",", "z"]], "]"]], "+", RowBox[List["2", " ", "\[ImaginaryI]", " ", "\[Pi]", " ", "k"]]]]]]]] | 
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 | | Date Added to functions.wolfram.com (modification date) | 
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