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thebookofshaders/glossary/radians.md

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## Radians
Convert a quantity in degrees to radians
### Declaration
```glsl
float radians(float degrees)
vec2 radians(vec2 degrees)
vec3 radians(vec3 degrees)
vec4 radians(vec4 degrees)
```
### Parameters
```degrees``` specify the quantity, in degrees, to be converted to radians.
### Description
```radians()``` converts a quantity, specified in degrees into radians. That is, the return value is ```(PI * degrees)/180```.
### See Also
[degrees](index.html#degrees.md)