public void ToXna()
{
Matrix44D v = new Matrix44D(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
Matrix xna = v.ToXna();
Assert.AreEqual(xna.M11, v.M00);
Assert.AreEqual(xna.M12, v.M10);
Assert.AreEqual(xna.M13, v.M20);
Assert.AreEqual(xna.M14, v.M30);
Assert.AreEqual(xna.M21, v.M01);
Assert.AreEqual(xna.M22, v.M11);
Assert.AreEqual(xna.M23, v.M21);
Assert.AreEqual(xna.M24, v.M31);
Assert.AreEqual(xna.M31, v.M02);
Assert.AreEqual(xna.M32, v.M12);
Assert.AreEqual(xna.M33, v.M22);
Assert.AreEqual(xna.M34, v.M32);
Assert.AreEqual(xna.M41, v.M03);
Assert.AreEqual(xna.M42, v.M13);
Assert.AreEqual(xna.M43, v.M23);
Assert.AreEqual(xna.M44, v.M33);
}