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    COMBIN
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    Summary

    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 Number representing the number of items; if not an integer, the number is truncated; must be positive and greater than or equal to n
    n 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:

    COMBIN Equation

    Data Types

    Accepts numeric data for both arguments. Returns numeric data.

    Examples

    COMBIN(C4,B2)

    COMBIN(B3,5)

    COMBIN(R1C2,2)

    COMBIN(8,2) gives the result 28

    COMBIN(100,3) gives the result 161700