public static void Magnitude_3D(double x1, double y1, double z1, double x2, double y2, double z2, double expectedResult)
        {
            double xComponent = x2 - x1;
            double yComponent = y2 - y1;
            double zComponent = z2 - z1;

            Assert.AreEqual(expectedResult, VectorLibrary.Magnitude3D(xComponent, yComponent, zComponent), Tolerance);
        }
 public static void Magnitude_3D_Throws_ArgumentException_for_Zero_Magnitude()
 {
     Assert.Throws <ArgumentException>(() => VectorLibrary.Magnitude3D(0, 0, 0));
 }