DLMF:6.2.E7 (Q2217)

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Language	Label	Description	Also known as
English	DLMF:6.2.E7	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle\mathrm{Ei}\left(\pm x\right)=-\mathrm{Ein}\left(% \mp x\right)+\ln x+\gamma.}}

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DLMF:6.2.E7

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Euler’s constant

Defining formula

{\displaystyle{\displaystyle\gamma}}

C5.S2.E3.m2aadec

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complementary exponential integral

Defining formula

{\displaystyle{\displaystyle\mathrm{Ein}\left(\NVar{z}\right)}}

C6.S2.E3.m2abdec

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Defining formula

{\displaystyle{\displaystyle\mathrm{Ei}\left(\NVar{x}\right)}}

C6.S2.SS1.p3.m2abdec

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principal branch of logarithm function

Defining formula

{\displaystyle{\displaystyle\ln\NVar{z}}}

C4.S2.E2.m2aadec

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Sitelinks

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