Izračunavanje broja Pi

   const int throws = 10000000;
   DateTime now = DateTime.Now;
   Random rand = new Random ((int) now.Millisecond);
   int Inside = 0;
   for (int i = 0; i < throws; ++i)
   {
    double cx = rand.NextDouble();
    double cy = rand.NextDouble();
    double distance = Math.Sqrt ((cx * cx) + (cy * cy));
    if (distance < 1.0)
     ++Inside;
   }
   double pi = 4 * (double) Inside / (double) throws;
   DateTime End = DateTime.Now;
   TimeSpan Diff = End - now;
   Console.WriteLine ("pi = " + pi);
   Console.WriteLine ("Milliseconds = " + Diff.TotalMilliseconds);
   Console.ReadLine();