public void TestEqualsEpsilon()
{
Cartesian first = new Cartesian(1e-1, 1e-2, 1e-3);
Cartesian second = new Cartesian(1.1e-1, 1.1e-2, 1.1e-3);
Assert.IsTrue(second.EqualsEpsilon(first, 1e-1));
Assert.IsTrue(second.EqualsEpsilon(first, 1e-2));
Assert.IsFalse(second.EqualsEpsilon(first, 1e-3));
Assert.IsFalse(second.EqualsEpsilon(first, 1e-4));
Assert.IsFalse(second.EqualsEpsilon(first, 1e-5));
}