The Excel Imtan function returns the tangent of a supplied complex number.
Note: the Imtan function was only introduced in Excel 2013, so is not available in earlier versions of Excel.
The syntax 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.
In the spreadsheets below, the Excel Imtan function is used to calculate the tangent of 4 different complex numbers.
Note that, in the above example spreadsheet:
Further details and examples of the Excel Imtan function are provided on the Microsoft Office website
If you get an error from the Excel Imtan 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.|