XMScalarACos

Computes the arccosine of a floating-point number.

Syntax

float XMScalarACos(
         float Value
)  

Parameters

Value
Type: float 

float value between -1.0f and 1.0f.

Return value

Type: float 

Returns the inverse cosine of Value.

Remarks

This function uses a 7-degree minimax approximation.

Requirements

Header: Declared in directxmath.h.