asin - OpenGL ES 3 Reference Pages

## Name

asin — return the arcsine of the parameter

## Declaration

`genType asin(` | genType x`)`;

## Parameters

`x`

  Specify the value whose arcsine to return.

## Description

`atan` returns the angle whose trigonometric sine is $x$. The range of values returned by `asin` is $[-{\pi \over 2}, {\pi \over 2}]$. The result is undefined if $\left| x \right| > 1$.

## Version Support

| OpenGL ES Shading Language Version
--- | ---
Function Name | 1.00 | 3.00
asin | ✔ | ✔

## See Also

sin, cos, tan, acos, atan

## Copyright

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.