2.5.4.59 Ln
The Ln function performs the natural logarithm calculation.
ABNF:
-
Ln = val " LN():128"
Required Arguments:
Name: Arg1
Type: vDouble
An argument that specifies the operand of the calculation.
Return Value:
This function returns a vNum containing the natural logarithm of Arg1. The unit of the return value is equal to the unit of Arg1. If Arg1 is less than or equal to zero, the function returns a PtgErr with an error code of #NUM!.