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EXCEL GAMMALN FUNCTION
Excel GAMMALN Function Introduction
The Gammaln function in Excel returns the natural logarithm of the Gamma Function (n).
Description of Excel GAMMALN Function
Syntax :
=GAMMALN( x )
Parameters :
The following parameters are :
- Where x is the positive value at which the function should be evaluated
Step By Step Guide of GAMMALN Function
Example :
The graph on the right depicts the Gamma Function’s natural logarithm.
If you wish to determine the value of this function at x = 4.5, use the Excel Gammaln function, as shown below:
GAMMALN = ( 4.5 )
This yields the answer 2.453736571.
Key Points
- #NUM! – Occurs if the value of x given is 0.
- #VALUE! – Occurs if the given x value is not a number.
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