DLMF:4.40.E5 (Q1977)

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Language	Label	Description	Also known as
English	DLMF:4.40.E5	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle\int\operatorname{sech}x\mathrm{d}x=\operatorname{% gd}\left(x\right).}}

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DLMF:4.40.E5

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Gudermannian function

Defining formula

{\displaystyle{\displaystyle\operatorname{gd}\NVar{x}}}

C4.S23.E39.m2adec

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Defining formula

{\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}

C1.S4.SS4.m1addec

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hyperbolic secant function

Defining formula

{\displaystyle{\displaystyle\operatorname{sech}\NVar{z}}}

C4.S28.E6.m2adec

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Sitelinks

Wikipedia(0 entries)

DRMF related sites(0 entries)

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