# Cotangent Function

## Summary

Given the angle of a right triangle as input, returns the ratio of the adjacent side over the opposite side.

### Syntax

cot(θ)

### Arguments

Name Description
angle The angle provided in radians.

## Usage

The cotangent function is the reciprocal function of tangent. Geometrically, the function returns the complementary length of the line tangent to the point corresponding to the input angle on the unit circle.