Formula:3441

Digital Library of Mathematical Functions ID 8.21.E21

${\displaystyle{\displaystyle\mathrm{ci}\left(a,z\right)=-f(a,z)\sin z+g(a,z)\cos z.}}$

Symbols List

• ${\displaystyle{\displaystyle\cos\NVar{z}}}$: cosine function
• ${\displaystyle{\displaystyle\mathrm{ci}\left(\NVar{a},\NVar{z}\right)}}$: generalized cosine integral
• ${\displaystyle{\displaystyle\sin\NVar{z}}}$: sine function
• ${\displaystyle{\displaystyle z}}$: complex variable
• ${\displaystyle{\displaystyle a}}$: parameter
• ${\displaystyle{\displaystyle f(a,z)}}$: auxiliary function (locally)
• ${\displaystyle{\displaystyle g(a,z)}}$: auxiliary function (locally)
 

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