Opened 11 years ago

Last modified 10 years ago

#10682 closed defect

sum fails with lower bound != 0 or 1 — at Initial Version

Reported by: fmaltey Owned by: burcin
Priority: critical Milestone: sage-5.0
Component: symbolics Keywords: maxima 5.26.0 binomial sum
Cc: mjo Merged in:
Authors: Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

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Description

I test

sage: var ('n,k')
sage: sum (binomial(n,k)*k2, k, 0, n)  # is right
sage: sum (binomial(n,k)*k2, k, 1, n)  # is right n(n+1)2^(n-2)
sage: sum (binomial(n,k)*k2, k, 2, n)  # is false : I get 0 

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