private void Redraw()
 {
     TxtNumber.Text   = Counter.ToString();
     TxtEstimate.Text = CalculatedPi.ToString();
     PieGraph.Draw();
     //Thread.Sleep(50)
 }
 private void Redraw()
 {
     if (started)
     {
         TxtNumber.Text    = (number + 1).ToString();
         TxtEstimate.Text  = (4.0 * CalculatedPie).ToString();
         TxtEstimate2.Text = CalculatedE.ToString();
         if (number % 10 == 1)
         {
             PieGraph.Draw();
             eGraph.Draw();
         }
     }
 }