Binomial Coefficient

Calculates the binomial coefficient (n choose k) for combinatorics.

C(n,k)

28

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Formula

C(n, k) = n! / (k! × (n − k)!)

Example: C(8, 2) = 28

Methodology

(n choose k) = C(n,k), count of k-element subsets.

Example

(8 choose 2) = 28.

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