Module 

Header 
/Engine/Source/Runtime/Core/Public/Math/Matrix.h 
Include 
#include "Math/Matrix.h" 
Source 
/Engine/Source/Runtime/Core/Public/Math/Matrix.inl 
FVector GetScaleVector
(
float Tolerance
) const
Return a 3D scale vector calculated from this matrix (where each component is the magnitude of a row vector) with error Tolerance.
return a 3D scale vector calculated from this matrix (where each component is the magnitude of a row vector).