static void Main(string[] args)
{
_3DPoint point1 = new _3DPoint(1, 2, 3);
_3DPoint point2 = new _3DPoint(0, 0, 0);
_3DPoint point3 = new _3DPoint(4, 5, 6);
point1.Print();
point2.Print();
point3.Print();
Console.WriteLine(point1.DistanceFromOrigin());
Console.WriteLine(point1.DistanceBetween2Points(point2));
Console.WriteLine(point1.DistanceBetween2Points(point3));
Console.WriteLine(point3.ScalarProduct(point1));
Console.ReadKey();
}