# Category:Complex Numbers

This category contains results about Complex Numbers.
Definitions specific to this category can be found in Definitions/Complex Numbers.

A complex number is a number in the form $a + b i$ or $a + i b$ where:

$a$ and $b$ are real numbers
$i$ is a square root of $-1$, that is, $i = \sqrt {-1}$.

## Subcategories

This category has the following 44 subcategories, out of 44 total.