Comment #1 on issue 3153 by someb...@bluewin.ch: Expansion of 2F1
hyper((1/3, 1/3), (4/3,), a*exp_polar(I*pi)/(b*x)) fails
http://code.google.com/p/sympy/issues/detail?id=3153
And one more, this time with the integrand: x/(1-x**3)**Rational(2,3)
In [18]: integrate(x/(1-x**3)**Rational(2,3), x)
Out[18]: x**2*gamma(2/3)*hyper((2/3, 2/3), (5/3,),
x**3*exp_polar(2*I*pi))/(3*gamma(5/3))
Where we have the term
hyper((2/3, 2/3), (5/3,), x**3*exp_polar(2*I*pi))
Again we could express the result with arctans and logs.
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