The Excel Imln function returns the natural logarithm of a supplied complex number.
The format of the function is:
Note that complex numbers are simply stored as text in Excel. When a text string in the format "a+bi" or "a+bj" is supplied to one of Excel's built-in complex number functions, this is interpreted as a complex number.
Also the complex number functions can accept a simple numeric value, as this is equivalent to a complex number whose imaginary coefficient is equal to 0.
Therefore, the inumber argument can be supplied to the Excel Imln function as any of the following:
The spreadsheets below show four examples of the Imln function:
Note that, in the above example spreadsheet:
Further information and examples of the Excel Imln function can be found on the Microsoft Office website
If you get an error from the Excel Imln Function, this is likely to be one of the following:
|#NUM!||-||Occurs if the supplied inumber argument is not recognised as a complex number.|
|#VALUE!||-||Occurs if the supplied inumber argument is a logical value.|