public void TestZeroMatrix()
{
Matrix3By3 zero = Matrix3By3.Zero;
Assert.AreEqual(0.0, zero.M11);
Assert.AreEqual(0.0, zero.M12);
Assert.AreEqual(0.0, zero.M13);
Assert.AreEqual(0.0, zero.M21);
Assert.AreEqual(0.0, zero.M22);
Assert.AreEqual(0.0, zero.M23);
Assert.AreEqual(0.0, zero.M31);
Assert.AreEqual(0.0, zero.M32);
Assert.AreEqual(0.0, zero.M33);
}