#10564: bug in symbolic sums
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Reporter: zimmerma | Owner: burcin
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.6.2
Component: calculus | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by aapitzsch):
Tested on 4.6.2.alpha0.
{{{
File "/scratch/sage-4.6.1/devel/sage/sage/calculus/calculus.py", line 513:
sage: sum (n^3 * x^n, n, 0, infinity)
Expected:
-(x^3 + 4*x^2 + x)/(-x^4 + 4*x^3 - 6*x^2 + 4*x - 1)
Got:
(x^3 + 4*x^2 + x)/(x^4 - 4*x^3 + 6*x^2 - 4*x + 1)
}}}
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10564#comment:5>
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