Created
June 6, 2011 12:33
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Efficient sum that doesn't try to simplify in Sage
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| def fsum(x,a): | |
| g(x) = 1/2 | |
| list_of_terms=[2*(((-1)^n-1)/(n*pi)^2*cos(n*pi*x)-(-1)^n/(n*pi)*sin(n*pi*x)) for n in [1..a]] | |
| g += sum(list_of_terms) | |
| return g |
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