ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Sat, 26 Jul 2014 11:00:15 +0200Summing polynomialshttps://ask.sagemath.org/question/23590/summing-polynomials/I have a ´Univariate Polynomial Ring in t over Symbolic Ring´
sage: cj_t = (-1)**(j-1)/factorial(j-1)*(-j+a)**(j-1/2)*exp(-j)*(t+j)**(-1)
How can I compute the sum over j from 1 to N?
sage: sum(cj_t,1,N)
doesn't work.
sage: sum([cj_t for j in [1..N]])
(Python syntax) doesn't work either.jjackSat, 26 Jul 2014 11:00:15 +0200https://ask.sagemath.org/question/23590/