Formula:3424

Digital Library of Mathematical Functions ID 8.21.E5

${\displaystyle{\displaystyle\mathrm{ci}\left(a,z\right)=\int_{z}^{\infty}t^{a-1}\cos t\mathrm{d}t,}}$

Constraint(s)

${\displaystyle{\displaystyle\Re a<1}}$

Symbols List

• ${\displaystyle{\displaystyle\cos\NVar{z}}}$: cosine function
• ${\displaystyle{\displaystyle\mathrm{d}\NVar{x}}}$: differential of x
• ${\displaystyle{\displaystyle\mathrm{ci}\left(\NVar{a},\NVar{z}\right)}}$: generalized cosine integral
• ${\displaystyle{\displaystyle\int}}$: integral
• ${\displaystyle{\displaystyle\Re}}$: real part
• ${\displaystyle{\displaystyle z}}$: complex variable
• ${\displaystyle{\displaystyle a}}$: parameter
 

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