Problem Statement

This programming task, is to calculate ANY binomial coefficient. However, it has to be able to output

(

5 3

)

{\displaystyle {\binom {5}{3}}}

,   which is   10. This formula is recommended:

See Also:

Let's start with the solution:

def binomialCoeff(n, k)
    result = 1
    for i in range(1, k)
        result = result * (n-i+1) / i
    end
    return result
end

if main
    println binomialCoeff(5,3)
end