DLMF:8.21.E15 (Q2737): Difference between revisions

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Property / Symbols used: Q10755 / rank
 
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Property / Symbols used: Q10755 / qualifier
 
test:

! {\displaystyle{\displaystyle!}}

!
Property / Symbols used: Q10755 / qualifier
 
xml-id: introduction.Sx4.p1.t1.r15.m5aadec

Revision as of 13:17, 2 January 2020

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DLMF:8.21.E15
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    Ci ( a , z ) = z a k = 0 ( - 1 ) k z 2 k ( 2 k + a ) ( 2 k ) ! , generalized-cosine-integral-Ci 𝑎 𝑧 superscript 𝑧 𝑎 superscript subscript 𝑘 0 superscript 1 𝑘 superscript 𝑧 2 𝑘 2 𝑘 𝑎 2 𝑘 {\displaystyle{\displaystyle\mathrm{Ci}\left(a,z\right)=z^{a}\sum_{k=0}^{% \infty}\frac{(-1)^{k}z^{2k}}{(2k+a)(2k)!},}}
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    a 0 , - 2 , - 4 , 𝑎 0 2 4 {\displaystyle{\displaystyle a\neq 0,-2,-4,\dots}}
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    ! {\displaystyle{\displaystyle!}}
    introduction.Sx4.p1.t1.r15.m5aadec
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