Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 3703 by tripleel...@gmail.com: Sum of a finite power series
performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
Suppose you do:
mysum = summation( ((-1**n)/factorial(
Updates:
Labels: Concrete
Comment #1 on issue 3703 by asmeu...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
Did you mean mysum.subs(x,1).subs(M,10).doit()? That works just fine.
-
Comment #2 on issue 3703 by asmeu...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
Also, see https://github.com/sympy/sympy/pull/1904, which is related to
what I think you are trying to rep
Comment #3 on issue 3703 by skirpic...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
I'm not sure. I can't reproduce something either before pull 1904 or after.
Sympy returns a valid answer
Comment #4 on issue 3703 by tripleel...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
I'm sorry, I pasted the wrong summation up there. It was late and I think
my brain blew a fuse due to l
Updates:
Status: Valid
Comment #5 on issue 3703 by julien.r...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
In your example, the summation code blindly assumes x != 1. We have simila
Updates:
Labels: EasyToFix
Comment #6 on issue 3703 by asmeu...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
OK, so pull request 1904 has partially fixed this, in that the infinite
Comment #7 on issue 3703 by skirpic...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
https://github.com/sympy/sympy/pull/1910
--
You received this message because this project is configured
Updates:
Status: Fixed
Comment #8 on issue 3703 by asmeu...@gmail.com: Sum of a finite power
series performs automatic reduction which is not always valid
http://code.google.com/p/sympy/issues/detail?id=3703
That was merged. If you find any other instances where summation should
rea
