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DLMF:6.2.E3 - MaRDI portal

DLMF:6.2.E3 (Q2911)

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DLMF:6.2.E3
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    Statements

    DLMF defining formula
    Ein ⁡ ( z ) = ∫ 0 z 1 - e - t t ⁢ d t . complementary-exponential-integral 𝑧 superscript subscript 0 𝑧 1 superscript 𝑒 𝑡 𝑡 𝑡 {\displaystyle{\displaystyle\mathrm{Ein}\left(z\right)=\int_{0}^{z}\frac{1-e^{% -t}}{t}\mathrm{d}t.}}
    0 references
    Symbols used
    differential of x
    DLMF defining formula
    d x 𝑥 {\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}
    xml-id
    C1.S4.SS4.m1abdec
    0 references
    base of natural logarithm
    DLMF defining formula
    e {\displaystyle{\displaystyle\mathrm{e}}}
    xml-id
    C4.S2.E11.m2abdec
    0 references
    integral
    DLMF defining formula
    ∫ {\displaystyle{\displaystyle\int}}
    xml-id
    C1.S4.SS4.m3abdec
    0 references
    complex variable
    DLMF defining formula
    z 𝑧 {\displaystyle{\displaystyle z}}
    xml-id
    C6.S1.XMD2.m1bdec
    0 references

    Identifiers

     
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