public static void Multiplication3x3Test() => TrafoTesting.GenericMatrixMultiplicationTest <Affine3d, M33d, M34d>( rnd => TrafoTesting.GetRandomAffine(rnd, false), Affine.TransformPos, Mat.Transform, Mat.TransformPos, (a, v) => (a * new V4d(v, 1)).XYZ, (m, v) => m * v, (m, v) => m * new V4d(v, 1));