XMScalarACos function (directxmath.h)

Article
02/22/2024

Computes the arccosine of a floating-point number.

Syntax

C++

float XMScalarACos(
  [in] float Value
) noexcept;

Parameters

[in] Value

float value between -1.0f and 1.0f.

Return value

Returns the inverse cosine of Value.

Remarks

This function uses a 7-degree minimax approximation.

Platform Requirements

Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.

Requirements

Requirement	Value
Target Platform	Windows
Header	directxmath.h

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