#10682: sum fails with lower bound != 0 or 1
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Reporter: fmaltey | Owner: burcin
Type: defect | Status: new
Priority: major | Milestone: sage-4.6.2
Component: symbolics | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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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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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10682>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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