WorksheetFunction.GammaLn_Precise(Double) Method
Definition
Important
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Returns the natural logarithm of the gamma function, Γ(x).
public:
double GammaLn_Precise(double Arg1);public double GammaLn_Precise (double Arg1);Public Function GammaLn_Precise (Arg1 As Double) As DoubleParameters
- Arg1
- Double
X - the value for which you want to calculate GAMMALN.
Returns
Remarks
If x is nonnumeric, the GammaLn_Precise method generates an error.
If x ≤ 0, the GammaLn_Precise method generates an error.
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:
Figure 1: Equation for the GammaLn_Precise method
Where:
Figure 2: Equation