# Unexpected result for the sum of a series

 2 I typed n = var('n') sum(1/((2*n-1)^2*(2*n+1)^2*(2*n+3)^2), n, 0, oo)  sage answered 3/256*pi^2 - 1/32  By hand computation (via Fourier series), and by WolframAlpha I got 3/256*pi^2 Why? (This is my first question. If it is inappropriate here, please tell me where I should ask it. I used the tag "bug", but I of course mean "potential bug". Thank you very much in advance!) asked Nov 15 '12 Pierre-Yves Gaillard 23 ● 4 tmonteil 3583 ● 3 ● 37 ● 83 http://wiki.sagemath.org/...

 2 This is a bug. It is now #13712 on the Sage issue tracker. Sage calls Maxima to evaluate symbolic sums. Somebody will have to pass the report upstream to the Maxima developers. Thanks for your report. posted Nov 15 '12 burcin 1098 ● 11 ● 34 http://erocal.org/burcin 1This has been reported upstream at Maxima artifact 3587514.kcrisman (Nov 15 '12)

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