WorksheetFunction.ImLn (Excel)

Returns the natural logarithm of a complex number in x + yi or x + yj text format.

Use the Complex method to convert real and imaginary coefficients into a complex number. The natural logarithm of a complex number is where

ImLn (Arg1)

Arg1: Inumber - a complex number for which you want the natural logarithm.

Dim strImLn As String
strImLn = WorksheetFunction.ImLn(Arg1:=)