# Revision history [back]

### Bug in computing sum (of binomials)

One gets a wrong output when running the following command:

sage: sum(binomial(1,n),n,0,oo)
3


The output should be $2$ instead of $3$. Compare:

sage: sum(binomial(1,n),n,0,oo,algorithm="sympy")
2

 2 retagged tmonteil 23043 ●25 ●165 ●421 http://wiki.sagemath.o...

### Bug in computing sum (of binomials)

One gets a wrong output when running the following command:

sage: sum(binomial(1,n),n,0,oo)
3


The output should be $2$ instead of $3$. Compare:

sage: sum(binomial(1,n),n,0,oo,algorithm="sympy")
2