ASKSAGE: Sage Q&A Forum - Individual question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Thu, 02 Mar 2017 11:39:26 -0600Sum of q_binomialhttp://ask.sagemath.org/question/36789/sum-of-q_binomial/ Hi,
I'm new to sagemath. I'm trying to define a function that depends on a sum of a q-binomial, but I get "unable to convert n to an integer".
So, this works:
sum(binomial(n,k),k,1,n)
(output gives $2^n-1$)
but this doesn't:
sum(q_binomial(n,k),k,1,n)
All I did was add the "q_", which is the proper way to define a q-binomial in sage, as I already tested (try q_binomial(5,3) and the output is correct).
Anyone can help?Thu, 02 Mar 2017 11:39:26 -0600http://ask.sagemath.org/question/36789/sum-of-q_binomial/