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integrate #14716

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vloddos opened this issue May 15, 2018 · 1 comment

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vloddos commented May 15, 2018

Can't count the integral from log(x+5)cos(pix).
Code:

from sympy import pi,sin,cos,log,S
x=S('x')
(log(x+5)cos(pix)).integrate((x,0.5,1))

Contributor

normalhuman commented Nov 13, 2018

This looks like something that meijerg integration should be able to do. In fact, it does if the function is shifted by 5.

>>> integrate(log(x)*cos(pi*(x-5)), x)
-log(x)*sin(pi*x)/pi + Si(pi*x)/pi
>>> integrate(log(x+5)*cos(pi*x), x)
Integral(log(x + 5)*cos(pi*x), x)

oscarbenjamin added the integrals label

oscargus mentioned this issue

Added some failing integral tests #17059

Merged

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