Returns the number of combinations of n elements to k-th order without repetition.
Combin(n, k)
Combin(n, k) is defined as: Combin(n, k)=n!/((n-k)!*k!)
OpenW # 1
Print Combin(6, 2) // Prints 15
When k > n an error is reported.
{Created by Sjouke Hamstra; Last updated: 25/09/2014 by James Gaite}