DLMF:6.2.E8 (Q2218): Difference between revisions

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Revision as of 15:59, 30 December 2019

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DLMF:6.2.E8
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    li ( x ) = 0 x d t ln t = Ei ( ln x ) , logarithmic-integral 𝑥 superscript subscript principal-value-integral 0 𝑥 𝑡 𝑡 exponential-integral-Ei 𝑥 {\displaystyle{\displaystyle\mathrm{li}\left(x\right)=\pvint_{0}^{x}\frac{% \mathrm{d}t}{\ln t}=\mathrm{Ei}\left(\ln x\right),}}
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    DLMF:6.2.E8
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