P = dbinom(k,n,p)
Input k nonnegative integer
n nonnegative integer such that k<=n
p probability number
(k,n,p can be real or matrix, the size of matrix
must be the same)
Output P prob(X=k) where X is a binomial variable B(n,p)
Anders Holtsberg, 16-03-95
Copyright (c) Anders Holtsberg