acos — return the arccosine of the parameter
genType acos( | genType x); |
x Specify the value whose arccosine to return.
atan returns the angle whose trigonometric cosine is . The range of values returned by acos is . The result is undefined if .
| OpenGL ES Shading Language Version | |||
|---|---|---|---|
| Function Name | 1.00 | 3.00 | 3.10 |
| acos | ✔ | ✔ | ✔ |
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