DLMF:6.2.E6 (Q2216): Difference between revisions

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Property / Symbols used
 
Property / Symbols used: base of natural logarithm / rank
 
Normal rank
Property / Symbols used: base of natural logarithm / qualifier
 
test:

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

\expe
Property / Symbols used: base of natural logarithm / qualifier
 
xml-id: C4.S2.E11.m2addec

Revision as of 00:13, 2 January 2020

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DLMF:6.2.E6
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    Statements

    Ei ( - x ) = - x e - t t d t = - E 1 ( x ) , exponential-integral-Ei 𝑥 superscript subscript 𝑥 superscript 𝑒 𝑡 𝑡 𝑡 exponential-integral 𝑥 {\displaystyle{\displaystyle\mathrm{Ei}\left(-x\right)=-\int_{x}^{\infty}\frac% {e^{-t}}{t}\mathrm{d}t=-E_{1}\left(x\right),}}
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    d x 𝑥 {\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}
    C1.S4.SS4.m1addec
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    e {\displaystyle{\displaystyle\mathrm{e}}}
    C4.S2.E11.m2addec
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