# Secant Function

## Summary

Given the angle of a right triangle as input, returns the ratio of the hypotenuse over the adjacent side. The secant function is the inverse of the cosine function.

### Syntax

sec(θ)

### Arguments

Name Description
θ An angle provided in radians

### Return Value

Returns the reciprocal of the cosine of the angle.

## Usage

The secant function is the inverse of the cosine function.