Updates:
Status: Valid
Labels: Integration
Comment #1 on issue 3179 by [email protected]: integrate() gives wrong
answer for definite integrals of rational trigonometric functions
http://code.google.com/p/sympy/issues/detail?id=3179
valid in master
from the mailing list:
It seems (I didn't check it) that SymPy uses trigonometric
substitution like u=tan x/2 and then incorrectly substitute 0 and 2*pi
as limits. (There are singular points in the interval (0,2*pi) for tan
x/2, so it does not work.)
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