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DLMF:8.19.E5 - MaRDI portal

DLMF:8.19.E5 (Q3389)

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DLMF:8.19.E5
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    Statements

    DLMF defining formula
    E 0 ⁡ ( z ) = z - 1 ⁢ e - z , exponential-integral-En 0 𝑧 superscript 𝑧 1 superscript 𝑒 𝑧 {\displaystyle{\displaystyle E_{0}\left(z\right)=z^{-1}e^{-z},}}
    0 references
    constraint
    z ≠ 0 𝑧 0 {\displaystyle{\displaystyle z\neq 0}}
    0 references
    Symbols used
    base of natural logarithm
    DLMF defining formula
    e {\displaystyle{\displaystyle\mathrm{e}}}
    xml-id
    C4.S2.E11.m2acdec
    0 references
    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.m2aidec
    0 references
    complex variable
    DLMF defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C8.S1.XMD2.m1ddec
    0 references

    Identifiers

     
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