WorksheetFunction.ImLog10 (Excel)
Returns the common logarithm (base 10) 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 common logarithm of a complex number can be calculated from the natural logarithm as follows:
ImLog10 (Arg1)
Arg1: Inumber - a complex number for which you want the common logarithm.
Dim strImLog10 As String
strImLog10 = WorksheetFunction.ImLog10(Arg1:=)