SciPy

scipy.special.sici

scipy.special.sici(x) = <ufunc 'sici'>

Sine and cosine integrals

Returns :

si :

integral(sin(t)/t,t=0..x)

ci :

eul + ln x + integral((cos(t) - 1)/t,t=0..x) where eul is Euler’s constant.

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