COMBIN

The COMBIN function returns the number of ways to choose some number of objects from a pool of a given size of objects.

Sample Usage

COMBIN(4,2)

COMBIN(A2,B2)

Syntax

COMBIN(n, k)

  • n - The size of the pool of objects to choose from.

  • k - The number of objects to choose.

Notes

  • COMBIN is the standard combinatorics function typically notated nCk and read "n choose k". This is equivalent to FACT(n)/(FACT(k)*FACT(n-k)).

See Also

MULTINOMIAL: Returns the factorial of the sum of values divided by the product of the values' factorials.

FACTDOUBLE: Returns the "double factorial" of a number.

FACT: The FACT function returns the factorial of a number.

Examples

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