-----maxima-bounces at math.utexas.edu wrote: -----
> simplify_sum finds that this sum equals 2/3*hypergeometric([-1/2,3/4],[7/4],-1). The error comes from hgfred:
A trick:
(%i12) (2*sum(1/(beta(3/2-i,i+1)*(2*i+3/2)),i,0,inf))/3$
(%i13) simplify_sum(%), hgfred(p,q,x) := hypergeometric(p,q,x);
(%o13) (2*hypergeometric([-1/2,3/4],[7/4],-1))/3
The error message from simplify_sum doesn't say that hgfred is the real problem :(
Barton