OCTAVE :: BINCOEFF - Binomial Coefficient INDEX
    INPUT: octave: > bincoeff ()
    Function: bincoeff( N, K )

    • Return the binomial coefficient of N and K.
    • The coefficient of the x^k term in the polynomial expansion of the binomial power (1 + x)^n.
    • C( N, K ) = N! / K! (N-K)!

    Example: 
        octave:1> bincoeff( 5, 2 )
   ans =
   10
  octave:2>

    Appendix:
    • Pascal's Triangle
        (N,K) 0 1 2 3 4
        0 1 1 1 1 1
        1 1 2 3 4
        2 1 3 6
        3 1 4
        4 1
    See Also:
OCTAVE :: BINCOEFF