public void TestDivide()
{
Cartesian original = new Cartesian(2.0, 4.0, 6.0);
Cartesian result = original / 2.0;
Assert.AreEqual(1.0, result.X);
Assert.AreEqual(2.0, result.Y);
Assert.AreEqual(3.0, result.Z);
result = original.Divide(2.0);
Assert.AreEqual(1.0, result.X);
Assert.AreEqual(2.0, result.Y);
Assert.AreEqual(3.0, result.Z);
}