vlt.math.intnchoosek¶
vlt.math.intnchoosek n choose k, 0 for non-integer, negative values
vlt.math.intnchoosek(N,K) calls NCHOOSEK(N,K), but defines the
result to be zero when N and K are not positive integers
with N>=K. This is different from matlab's normal behavior
of producing an error or returning an empty matrix.