public void TestMathOperatorsWithCartesian()
{
Matrix3By3 test = new Matrix3By3(1.0, 2.0, 4.0, 2.0, 3.0, 5.0, 4.0, 5.0, 6.0);
Cartesian mult = new Cartesian(1, 2, 3);
Assert.IsTrue((new Cartesian(17, 23, 32).Equals(test.Multiply(mult))));
Assert.IsTrue((new Cartesian(17, 23, 32).Equals(test * mult)));
}