Formula:2980

Digital Library of Mathematical Functions ID 6.10.E5

${\displaystyle{\displaystyle\mathrm{Cin}\left(z\right)=\sum_{n=1}^{\infty}a_{n}\left(\mathsf{j}_{n}\left(\tfrac{1}{2}z\right)\right)^{2},}}$

Symbols List

• ${\displaystyle{\displaystyle\mathrm{Cin}\left(\NVar{z}\right)}}$: cosine integral
• ${\displaystyle{\displaystyle\mathsf{j}_{\NVar{n}}\left(\NVar{z}\right)}}$: spherical Bessel function of the first kind
• ${\displaystyle{\displaystyle z}}$: complex variable
• ${\displaystyle{\displaystyle n}}$: nonnegative integer
• ${\displaystyle{\displaystyle a_{n}}}$: coefficients (locally)
 

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