Hello,
I test
sage: var ('n,k')
sage: sum (binomial(n,k)*k^2, k, 0, n) # seems right
sage: sum (binomial(n,k)*k^2, k, 1, n) # seems right n(n+1)2^(n-2)
sage: sum (binomial(n,k)*k^2, k, 2, n) # is false : I get 0
Is it a maxima bug ?
Do I push a Sage ticket for it ?
F.
--
To post to this group, send an email to sage-devel@googlegroups.com
To unsubscribe from this group, send an email to
sage-devel+unsubscr...@googlegroups.com
For more options, visit this group at http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org
