GAMMALN

Returns the natural logarithm of the gamma function.

Syntax

expression.GAMMALN(arg1);

expression - A variable that represents a ApiWorksheetFunction class.

Parameters

Name	Required/Optional	Data type	Default	Description
arg1	Required	ApiRange | ApiName | number		The value for which the natural logarithm of the gamma function will be calculated, a positive number.

Returns

number

Example

• Code
• Result

let worksheet = Api.GetActiveSheet();
let func = Api.GetWorksheetFunction();
let ans = func.GAMMALN(0.5);
worksheet.GetRange("B2").SetValue(ans);