DLMF:25.12.E7 (Q7726)

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DLMF:25.12.E7
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    Statements

    Defining formula
    Li 2 ⁡ ( e i ⁢ θ ) = ∑ n = 1 ∞ cos ⁡ ( n ⁢ θ ) n 2 + i ⁢ ∑ n = 1 ∞ sin ⁡ ( n ⁢ θ ) n 2 . dilogarithm superscript 𝑒 𝑖 𝜃 superscript subscript 𝑛 1 𝑛 𝜃 superscript 𝑛 2 𝑖 superscript subscript 𝑛 1 𝑛 𝜃 superscript 𝑛 2 {\displaystyle{\displaystyle\mathrm{Li}_{2}\left(e^{i\theta}\right)=\sum_{n=1}% ^{\infty}\frac{\cos\left(n\theta\right)}{n^{2}}+i\sum_{n=1}^{\infty}\frac{\sin% \left(n\theta\right)}{n^{2}}.}}
    0 references
    DLMF id
    DLMF:25.12.E7
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    Symbols used
    cosine function
    Defining formula
    cos ⁡ z 𝑧 {\displaystyle{\displaystyle\cos\NVar{z}}}
    xml-id
    C4.S14.E2.m2adec
    0 references
    dilogarithm
    Defining formula
    Li 2 ⁡ ( z ) dilogarithm 𝑧 {\displaystyle{\displaystyle\mathrm{Li}_{2}\left(\NVar{z}\right)}}
    xml-id
    C25.S12.E1.m2afdec
    0 references
    base of natural logarithm
    Defining formula
    e {\displaystyle{\displaystyle\mathrm{e}}}
    xml-id
    C4.S2.E11.m2aadec
    0 references
     
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