# Arc Sine Function

## Summary

Given a number representing the the ratio of a right triangle's opposite side over its hypotenuse returns the corresponding angle.

### Syntax

`arcsin(n)`

### Arguments

Name | Description |
---|---|

x | A number from -1 to 1 representing the ratio of the opposite side over the hypotenuse. |

## Usage Notes

## Good Links

Angle | concept

Radians | concept

Right Triangle | concept

Sine | function