Revision history [back]
 | 1 | initial version |
Just an alternative:
sage: P = function('P')
sage: var('x,y')
sage: S(x) = sum(P(x,y),y,0,1)
sage: S(2)
P(2, 0) + P(2, 1)
| | 2 | No.2 Revision |
Just an alternative:
sage: P = function('P')
sage: x,y = var('x,y')
sage: S(x) = sum(P(x,y),y,0,1)
sage: S(2)
P(2, 0) + P(2, 1)
