## Purpose

## Return value

## Arguments

*inumber1*- Complex number 1.*inumber2*- [optional] Complex number 2.

## Syntax

## Usage notes

Use the Excel IMSUM function to get the sum of two or more complex numbers in the form x + yi or x + yj. For example:

```
=IMSUM("1+2i",3) // returns "4+2i"
=IMSUM("3+4i","1+2i") // returns "4+6i"
```

In the example shown, the formula in D6, copied down, is:

```
=IMSUM(B6,C6)
```