# 3. Graphical Representation of Complex Numbers

by M. Bourne

We can represent complex numbers in the complex plane.

We use the horizontal axis for the real part and the vertical axis for the imaginary part.

### Example 1

The number 3 + 2j is represented by:

A is the representation of the complex number 3 + 2j.

### Need Graph Paper?

We can add complex numbers graphically.

This is the same idea as adding vectors graphically. See more at Adding 2D Vectors.

### Example 2

Add 1 + 2j and 3 - j graphically.

### Exercise

Perform graphically: (3 - 2j) + (-1 - j)

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