Revision history [back]
 | 1 | initial version |  |
sage: var('k,n'); sum(k^2, k, 1, n+1)
(k, n)
1/3*n^3 + 3/2*n^2 + 13/6*n + 1| | 1 | initial version | |
sage: var('k,n'); sum(k^2, k, 1, n+1)
(k, n)
1/3*n^3 + 3/2*n^2 + 13/6*n + 1
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