IMSUB function

This article describes the formula syntax and usage of the IMSUB function in Microsoft Excel.


Returns the difference of two complex numbers in x + yi or x + yj text format.


IMSUB(inumber1, inumber2)

The IMSUB function syntax has the following arguments:

  • Inumber1    Required. The complex number from which to subtract inumber2.

  • Inumber2    Required. The complex number to subtract from inumber1.


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

  • The difference of two complex numbers is:



Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter. If you need to, you can adjust the column widths to see all the data.





Difference between the two complex numbers in the formula.


Applies To: Excel 2010, Excel Starter, Excel 2013, Excel Online, Excel 2016 for Mac, Excel for Mac 2011, Excel 2007

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