XMVectorLogE function (directxmath.h)

Article
02/22/2024

Computes the base e logarithm of each component of a vector.The base e logarithm is also known as the natural logarithm.

Syntax

XMVECTOR XM_CALLCONV XMVectorLogE(
  [in] FXMVECTOR V
) noexcept;

Parameters

[in] V

Vector for which to compute the base e logarithm.

Return value

Returns a vector whose components are base e logarithm of the corresponding components of V.

Remarks

Platform Requirements

Microsoft Visual Studio 2010 or Microsoft Visual Studio 2012 with the Windows SDK for Windows 8.1. Supported for Win32 desktop apps, Windows Store apps, and Windows Phone 8 apps.

XMVectorLogE is new for DirectXMath version 3.05.

It's similar to the existing XMVectorLog function for Windows 8, but computes base e instead of base 2.

XMVectorLogE is implemented like this:


XMVECTOR Result;

Result.x = logf(V.x);
Result.y = logf(V.y);
Result.z = logf(V.z);
Result.w = logf(V.w);

return Result;

Requirements

Requirement	Value
Target Platform	Windows
Header	directxmath.h (include DirectXMath.h)