Vector3D.Normalize C# (CSharp) Method

    public void Normalize()
    {
        double num = Vector3D.Magnitude (this);
        if (num > 1E-05f)
        {
            this /= num;
        }
        else
        {
            this = Vector3D.zero;
        }
    }

        public void Normalize()
        {
            Vector3D v, n1, n2;
            double magnitude;

            v = new Vector3D(3.0, 4.0, 0.0);
            n1 = v.Normalize();
            n2 = v.Normalize(out magnitude);
            Assert.AreEqual(1.0, n1.Magnitude, 1e-14);
            Assert.AreEqual(1.0, n2.Magnitude, 1e-14);
            Assert.AreEqual(5.0, magnitude, 1e-14);

            v = new Vector3D(3.0, 0.0, 4.0);
            n1 = v.Normalize();
            n2 = v.Normalize(out magnitude);
            Assert.AreEqual(1.0, n1.Magnitude, 1e-14);
            Assert.AreEqual(1.0, n2.Magnitude, 1e-14);
            Assert.AreEqual(5.0, magnitude, 1e-14);

            v = new Vector3D(0.0, 3.0, 4.0);
            n1 = v.Normalize();
            n2 = v.Normalize(out magnitude);
            Assert.AreEqual(1.0, n1.Magnitude, 1e-14);
            Assert.AreEqual(1.0, n2.Magnitude, 1e-14);
            Assert.AreEqual(5.0, magnitude, 1e-14);
        }