我在哪里可以找到关于System.Windows.Media.Media3D.Matrix3D的信息?

I know one can Google this class and read the MSDN descriptions of all the properties and methods, but does anyone know of a site that will actually explain how it's used, so that an idiot like me can understand? I don't mind if I have to read lots of documentation to get an understanding of it.I know one can Google this class and read the M