public Vector3D(Vector3D a) { this.x = a.x; this.y = a.y; this.z = a.z; }
public double Magnitude(Vector3D a) { double x, y, z; x = a.x; y = a.y; z = a.z; return Math.Sqrt(x * x + y * y + z * z); }
static void Main(string[] args) { Vector3D a = new Vector3D(1, 3, 8); Vector3D b = new Vector3D(); Console.WriteLine("1"+"2"+"3"); }