Excel Gammaln. The Precise function computes the natural logarithm of the Gamma Function (n). Because the function is new in Excel 2010, it is not available in previous versions of Excel. The Gammaln.Precise function, on the other side, is merely an upgraded version of the Gammaln function, which was accessible in older versions of Excel.
Syntax :
=GAMMALN.PRECISE( x )
Parameters :
The following parameters are :
Example :
The graph on the right depicts the natural logarithm of the Gamma Function, (n), with x values ranging from 0 to 10.
If you wish to find the value of this function at x = 4.5, use the Excel Gammaln function.
As seen below, the Precise function may be used to do this:
=GAMMALN.PERFECT ( 4.5 )
This yields the answer 2.453736571.
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