DLMF:6.5.E2 (Q2242): Difference between revisions

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Property / Symbols used
 
Property / Symbols used: Q11306 / rank
 
Normal rank
Property / Symbols used: Q11306 / qualifier
 
test:

Ei ⁡ ( x ) exponential-integral-Ei 𝑥 {\displaystyle{\displaystyle\mathrm{Ei}\left(\NVar{x}\right)}}

\expintEi@{\NVar{x}}
Property / Symbols used: Q11306 / qualifier
 
xml-id: C6.S2.SS1.p3.m2aadec

Revision as of 01:23, 2 January 2020

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DLMF:6.5.E2
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    Statements

    test
    Ei ⁡ ( x ) = - 1 2 ⁢ ( E 1 ⁡ ( - x + i ⁢ 0 ) + E 1 ⁡ ( - x - i ⁢ 0 ) ) , exponential-integral-Ei 𝑥 1 2 exponential-integral 𝑥 𝑖 0 exponential-integral 𝑥 𝑖 0 {\displaystyle{\displaystyle\mathrm{Ei}\left(x\right)=-\tfrac{1}{2}(E_{1}\left% (-x+i0\right)+E_{1}\left(-x-i0\right)),}}
    0 references
    DLMF id
    DLMF:6.5.E2
    0 references
    Symbols used
    exponential integral
    test
    E 1 ⁡ ( z ) exponential-integral 𝑧 {\displaystyle{\displaystyle E_{1}\left(\NVar{z}\right)}}
    xml-id
    C6.S2.E1.m2aadec
    0 references
    Q11306
    test
    Ei ⁡ ( x ) exponential-integral-Ei 𝑥 {\displaystyle{\displaystyle\mathrm{Ei}\left(\NVar{x}\right)}}
    xml-id
    C6.S2.SS1.p3.m2aadec
    0 references
     
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