DLMF:4.23.E39 (Q1791): Difference between revisions

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Property / Symbols defined
 
Property / Symbols defined: Gudermannian function / rank
 
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Revision as of 14:58, 30 December 2019

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DLMF:4.23.E39
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    Statements

    gd ( x ) = 0 x sech t d t , Gudermannian 𝑥 superscript subscript 0 𝑥 𝑡 𝑡 {\displaystyle{\displaystyle\operatorname{gd}\left(x\right)=\int_{0}^{x}% \operatorname{sech}t\mathrm{d}t,}}
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