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COMBIN

This function calculates the number of possible combinations for a specified number of items.

Syntax

COMBIN(k, n)

Arguments

This function has these arguments:

Argument	Description
k	[Required] Number representing the number of items; if not an integer, the number is truncated; must be positive and greater than or equal ton
n	[Required] Number of items in each possible permutation; if not an integer, the number is truncated; must be positive

Remarks

A combination is any set or subset of items, regardless of the internal order of the items. Contrast with permutation (the PERMUT function).

The number of combinations is calculated as follows:

Examples

COMBIN(C4,B2)

COMBIN(B3,5)

COMBIN(R1C2,2)

COMBIN(8,2) gives the result 28

COMBIN(100,3) gives the result 161700