XMVectorLogE function (directxmath.h)

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  noexcept XMVectorLogE(
  FXMVECTOR V
);

Parameters

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

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

See also

Transcendental Vector Functions

XMVectorLog2

XMVectorLog10

XMVectorExpE