Complex Number Notation

Complex number notation annotated

A complex number is written as two parts: a real and complex part. The complex part of the number is denoted using the complex constant , where . A complex number can be visualized as a point in the complex plane. For example, the complex number is visualized below.

Complex Plane

The general notation for a complex number is shown below, where and are real numbers and .

The set of complex numbers is written using the symbol .