How to use IMARGUMENT Function in Excel

The Excel IMARGUMENT function returns the argument θ, (an angle expressed in radians), of a supplied complex number.

θ is the angle that satisfies the following equation:

Syntax: IMARGUMENT( inumber )

The IMARGUMENT function syntax has the following arguments:

• Inumber    Required. A complex number for which you want the argument θ

Example: Let’s look at some Excel IMARGUMENT function examples and explore how to use the IMARGUMENT function as a worksheet function in Microsoft Excel:

Syntax:  =IMARGUMENT(A2)

Result:

Based on the Excel spreadsheet above, the following IMARGUMENT examples would return:

Note:

• Use COMPLEX to convert real and imaginary coefficients into a complex number.

• IMARGUMENT is calculated as follows: where: and z = x + yi