public void DisplaySin(int startPoint, int stopPoint)
{
CurrentPlot.Series.Add(new FunctionSeries(Math.Sin, startPoint, stopPoint, 0.01, "sin(x)"));
//if (startPoint % 5 != 0)
//{
// var series = new ScatterSeries();
// series.Points.Add(new ScatterPoint(startPoint + 10, 1));
// CurrentPlot.Series.Add(series);
//}
}