[GiNaC-list] binomial coefficients

[Marko Riedel]

Greetings.

I would like to point out that

     binomial(-5, -7)

will produce a segmentation fault. Compare to Maple which says that when 
binomial(n,k) has k<0 but n-k>=0 we should use binomial(n, n-k) which 
gives 15 in this case.

Best regards,

Marko