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 | | http://functions.wolfram.com/01.22.16.0038.01 | 
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 | | Coth[z/2] == z Sqrt[1/z^2] Sqrt[(Cosh[z] + 1)/(Cosh[z] - 1)] | 
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 | | Cell[BoxData[RowBox[List[RowBox[List["Coth", "[", FractionBox["z", "2"], "]"]], "\[Equal]", RowBox[List["z", " ", SqrtBox[FractionBox["1", SuperscriptBox["z", "2"]]], " ", SqrtBox[FractionBox[RowBox[List[RowBox[List["Cosh", "[", "z", "]"]], "+", "1"]], RowBox[List[RowBox[List["Cosh", "[", "z", "]"]], "-", "1"]]]]]]]]]] | 
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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> coth </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mi> z </mi>  <mn> 2 </mn>  </mfrac>  <mo> ) </mo>  </mrow>  <mo> ⩵ </mo>  <mrow>  <mi> z </mi>  <mo> ⁢ </mo>  <msqrt>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> z </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mfrac>  <mrow>  <mrow>  <mi> cosh </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mn> 1 </mn>  </mrow>  <mrow>  <mrow>  <mi> cosh </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mi> z </mi>  <mo> ) </mo>  </mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </mfrac>  </msqrt>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <eq />  <apply>  <coth />  <apply>  <times />  <ci> z </ci>  <apply>  <power />  <cn type='integer'> 2 </cn>  <cn type='integer'> -1 </cn>  </apply>  </apply>  </apply>  <apply>  <times />  <ci> z </ci>  <apply>  <power />  <apply>  <times />  <cn type='integer'> 1 </cn>  <apply>  <power />  <apply>  <power />  <ci> z </ci>  <cn type='integer'> 2 </cn>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='rational'> 1 <sep /> 2 </cn>  </apply>  <apply>  <power />  <apply>  <times />  <apply>  <plus />  <apply>  <cosh />  <ci> z </ci>  </apply>  <cn type='integer'> 1 </cn>  </apply>  <apply>  <power />  <apply>  <plus />  <apply>  <cosh />  <ci> z </ci>  </apply>  <cn type='integer'> -1 </cn>  </apply>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='rational'> 1 <sep /> 2 </cn>  </apply>  </apply>  </apply>  </annotation-xml>  </semantics>  </math> 
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 | | Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Coth", "[", FractionBox["z_", "2"], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["z", " ", SqrtBox[FractionBox["1", SuperscriptBox["z", "2"]]], " ", SqrtBox[FractionBox[RowBox[List[RowBox[List["Cosh", "[", "z", "]"]], "+", "1"]], RowBox[List[RowBox[List["Cosh", "[", "z", "]"]], "-", "1"]]]]]]]]]] | 
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 | | Date Added to functions.wolfram.com (modification date) | 
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