Policies & Guidelines

COMBINA

N choose K, with replacement

Description

Calculates the "n choose k" / nCk combinatorics function for the given parameters, with object replacement.

Returns the number of ways K objects can be chosen from a pool of N objects, with every chosen object returned to the pool after choosing it.

Function signature

COMBINA(n: Number, k: Number) => Number

Parameter

Description

N

The size of the pool of objects to choose from

K

The number of objects to choose.

Examples

Formula

Return value

COMBINA(5, 3)

35

COMBINA(6, 3)

56

COMBINA(5, 0)

1

COMBINA(5, 5)

126