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GAMMALN

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Returns the natural logarithm of the gamma function, (x).

Syntax

GAMMALN ( x )

X is the value for which you want to calculate GAMMALN.

Remarks

  • If x is nonnumeric, GAMMALN returns the #VALUE! error value.

  • If x 0, GAMMALN returns the #NUM! error value.

  • The number e raised to the GAMMALN(i) power, where i is an integer, returns the same result as (i - 1)!.

  • GAMMALN is calculated as follows:

    Cc767573.ZA060511431033(en-us,TechNet.10).gif

    where:

    Cc767573.ZA060511441033(en-us,TechNet.10).gif

Example

Formula

Description (Result)

=GAMMALN(4)

Natural logarithm of the gamma function at 4 (1.791759)

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