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DLMF:8.19.E13 - MaRDI portal

DLMF:8.19.E13 (Q3397)

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DLMF:8.19.E13
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    Statements

    DLMF defining formula
    d d z ⁡ E p ⁡ ( z ) = - E p - 1 ⁡ ( z ) , derivative 𝑧 exponential-integral-En 𝑝 𝑧 exponential-integral-En 𝑝 1 𝑧 {\displaystyle{\displaystyle\frac{\mathrm{d}}{\mathrm{d}z}E_{p}\left(z\right)=% -E_{p-1}\left(z\right),}}
    0 references
    Symbols used
    derivative of $$f$$ with respect to $$x$$
    DLMF defining formula
    d f d x derivative 𝑓 𝑥 {\displaystyle{\displaystyle\frac{\mathrm{d}\NVar{f}}{\mathrm{d}\NVar{x}}}}
    xml-id
    C1.S4.E4.m2adec
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    generalized exponential integral
    DLMF defining formula
    E p ⁡ ( z ) exponential-integral-En 𝑝 𝑧 {\displaystyle{\displaystyle E_{\NVar{p}}\left(\NVar{z}\right)}}
    xml-id
    C8.S19.E1.m2aqdec
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    complex variable
    DLMF defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C8.S1.XMD2.m1kdec
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    parameter
    DLMF defining formula
    p 𝑝 {\displaystyle{\displaystyle p}}
    xml-id
    C8.S1.XMD4.m1idec
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    Identifiers

     
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