DLMF:6.4.E3 (Q2236): Difference between revisions

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Language	Label	Description	Also known as
English	DLMF:6.4.E3	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle E_{1}\left(ze^{\pm\pi i}\right)=\mathrm{Ein}\left% (-z\right)-\ln z-\gamma\mp\pi i,}}

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DLMF:6.4.E3

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{\displaystyle{\displaystyle|\operatorname{ph}z|\leq\pi}}

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Euler’s constant

Defining formula

{\displaystyle{\displaystyle\gamma}}

C5.S2.E3.m2aadec

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the ratio of the circumference of a circle to its diameter

Defining formula

{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2aadec

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complementary exponential integral

Defining formula

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

C6.S2.E3.m2aadec

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base of natural logarithm

Defining formula

{\displaystyle{\displaystyle\mathrm{e}}}

C4.S2.E11.m2aadec

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exponential integral

Defining formula

{\displaystyle{\displaystyle E_{1}\left(\NVar{z}\right)}}

C6.S2.E1.m2abdec

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Defining formula

{\displaystyle{\displaystyle\mathrm{i}}}

C1.S9.E1.m2aadec

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Sitelinks

Wikipedia(0 entries)

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