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thebookofshaders/glossary/asin
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README.md

Asin

Return the arcsine of the parameter

Declaration

float asin(float x)  
vec2 asin(vec2 x)  
vec3 asin(vec3 x)  
vec4 asin(vec4 x)

Parameters

x specify the value whose arcsine to return.

Description

asin() returns the angle whose trigonometric sine is x.

See Also

cos, sin, acos, tan, atan, Chapter 05: Shaping Functions