public void NormalizedZeroVectorIsStillZeroVector()
        {
            R1_origin.Normalize();
            R2_origin.Normalize();
            R3_origin.Normalize();
            R100_origin.Normalize();

            Assert.IsTrue(R1_origin.IsNull());
            Assert.IsTrue(R2_origin.IsNull());
            Assert.IsTrue(R3_origin.IsNull());
            Assert.IsTrue(R100_origin.IsNull());
        }