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simplify(summation(n/((n+2)*(n+4)*(n+8)), (n, 1, oo))) returns 521/25200 #236

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skirpichev opened this issue Feb 25, 2016 · 0 comments
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simplify(summation(n/((n+2)*(n+4)*(n+8)), (n, 1, oo))) returns 521/25200 #236

skirpichev opened this issue Feb 25, 2016 · 0 comments
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concrete wrong answer if mathematically wrong result was obtained
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0.8

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@skirpichev
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Mathematica:

In[1]:= Sum[n/((n + 2)*(n + 4)*(n + 8)),{n, 1, Infinity}]
Out[1]= 
4
--
35

See
https://groups.google.com/forum/?fromgroups=#!topic/sympy/ZI_D-eG1UfE
@skirpichev skirpichev added wrong answer if mathematically wrong result was obtained concrete labels Feb 25, 2016
@skirpichev skirpichev changed the title simplify(summation(j/((j+2)*(j+4)*(j+8)), (j, 1, oo))) returns 521/25200 simplify(summation(n/((n+2)*(n+4)*(n+8)), (n, 1, oo))) returns 521/25200 Feb 27, 2016
@skirpichev skirpichev mentioned this issue Feb 28, 2016
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@skirpichev skirpichev mentioned this issue Mar 17, 2016
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@skirpichev skirpichev modified the milestone: 0.8.0 Sep 9, 2016
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