acos

Description

Arc cosine. Returns the angle whose cosine is the specified number.

Signature

T acos<T>(T x)
    where T : __BuiltinFloatingPointType;

vector<T, N> acos<T, N:int>(vector<T, N> x)
    where T : __BuiltinFloatingPointType;

matrix<T, N, M> acos<T, N:int, M:int>(matrix<T, N, M> x)
    where T : __BuiltinFloatingPointType;

Generic Parameters

T: __BuiltinFloatingPointType

N : int

M : int

Parameters

x : T

The cosine value.

x : vector<T, N>

The cosine value.

x : matrix<T, N, M>

The cosine value.

Return value

The angle in radians, in the range of [0, pi].

Availability and Requirements

Defined for the following targets:

hlsl

Available in all stages.

glsl

Available in all stages.

cpp

Available in all stages.

cuda

Available in all stages.

metal

Available in all stages.

wgsl

Available in all stages.

spirv

Available in all stages.