IMSUM function
This article describes the formula syntax and usage of the IMSUMfunction in Microsoft Excel.
Description
Returns the sum of two or more complex numbers in x + yi or x + yj text format.
Syntax
IMSUM(inumber1, [inumber2], ...)
The IMSUM function syntax has the following arguments:

Inumber1, [inumber2], ... Inumber1 is required, subsequent numbers are not. 1 to 255 complex numbers to add.
Remarks

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

The sum of two complex numbers is:
Example
The example may be easier to understand if you copy it to a blank worksheet.
How do I copy an example?

Select the example in this article.
Important Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In Excel, create a blank workbook or worksheet.

In the worksheet, select cell A1, and press CTRL+V.
Important For the example to work properly, you must paste it into cell A1 of the worksheet.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.
After you copy the example to a blank worksheet, you can adapt it to suit your needs.

