[sage-devel] Re: simplify() blows up on ratio of binomial coefficients

2009-07-08 Thread Tim Lahey
On Jul 8, 2009, at 10:52 PM, William Stein wrote: > Short of that, have it do nothing for now, but add a > new command "simplify_maxima()" that uses Maxima to try to simplify an > expression. Alternatively, have simplify(algorithm="maxima"), which > would do the same thing. We could also hav

[sage-devel] Re: simplify() blows up on ratio of binomial coefficients

2009-07-08 Thread William Stein
On Wed, Jul 8, 2009 at 7:43 PM, Dan Drake wrote: > I'm using 4.0.2 and get the following when I try to simplify a fraction > with symbolic binomial coefficients: > >  sage: t, n = var('t n') >  sage: expr = binomial((t+1)*(n+1), n+1)/binomial((t+1)*n, n) >  sage: expr.simplify() >  ERROR: An unexp