Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 4037 by [email protected]: Product(1 - 1/(2*k)**2, (k,1,oo)).doit() returns nan
http://code.google.com/p/sympy/issues/detail?id=4037

k = symbols('k', integer=True, positive=True)
Pr = Product(1 - 1/(2*k)**2, (k,1,oo))
T = Pr.doit() # returns nan
assert T.simplify() == 2/pi # T.simplify() should return 2/pi

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