DLMF:6.10.E1 (Q2274)

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Language	Label	Description	Also known as
English	DLMF:6.10.E1	No description defined

Statements

Defining formula

{\displaystyle{\displaystyle E_{1}\left(z\right)=e^{-z}\left(\frac{c_{0}}{z}+% \frac{c_{1}}{z(z+1)}+\frac{2!c_{2}}{z(z+1)(z+2)}+\frac{3!c_{3}}{z(z+1)(z+2)(z+% 3)}+\cdots\right),}}

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DLMF:6.10.E1

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{\displaystyle{\displaystyle\Re z>0}}

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base of natural logarithm

Defining formula

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

C4.S2.E11.m2adec

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exponential integral

Defining formula

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

C6.S2.E1.m2adec

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Defining formula

{\displaystyle{\displaystyle!}}

introduction.Sx4.p1.t1.r15.m5adec

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Defining formula

{\displaystyle{\displaystyle\Re}}

C1.S9.E2.m1adec

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Defining formula

{\displaystyle{\displaystyle z}}

C6.S1.XMD2.m1dec

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