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This function returns the natural logarithm of the Gamma function, G(x).
GAMMALN.PRECISE(value)
[Required] The argument is any numeric value.
This function is calculated as the natural logarithm (LN) of the Gamma function. If value is nonnumeric, the function returns the #VALUE! error value. If x ≤ 0, this function returns the #NUM! error value.
GAMMALN.PRECISE(A4)
GAMMALN.PRECISE(R4C1)
GAMMALN.PRECISE(12) gives the result 17.502307845873887