private void calculateMcLaurienByLimitButton_Click(object sender, EventArgs e)
{
int n = int.Parse(mcLaurienOrderTextBox.Text); // get the order for the maclaurien
if (!(n >= 1 && n <= 8)) // check for the right input
{
MessageBox.Show("Please input a number that is bigger than 1 and less than 8!");
return;
}
/*
* k=0 -> n
*
* sum ( (-1)^(k)*(n!/(k! * (n-k)!))*f(X0 + h*( (n-2k)/2 )) ) / h^n
*
* where 'n' is the order for derivative and X0 is the f^n(x0)
*/
BaseNode mcLaurienRoot;
plotter.CreateMcLaurienSeriesByLimits(out mcLaurienRoot, n);
mcLaurienRoot = plotter.SimplifyTree(mcLaurienRoot);
plotter.GetGraphImage(graphPictureBox, mcLaurienRoot);
List <DataPoint> mcLaurienPoints = new List <DataPoint> ();
FunctionSeries mcLaurienSeries = new FunctionSeries {
Title = "McLaurien"
};
List <DataPoint> graphPoints = new List <DataPoint> ();
FunctionSeries graphSeries = new FunctionSeries {
Title = "Graph"
};
try {
var boundaries = Boundaries(xValueTextbox.Text);
var realBoundaries = GetNewRangeBasedUponOldOne(plotter.Root, mcLaurienRoot, boundaries[0], boundaries[1]);
for (double i = realBoundaries.lower; i < realBoundaries.upper; i += 0.3)
{
mcLaurienPoints.Add(new DataPoint(i, plotter.ProcessTree(i, mcLaurienRoot)));
}
for (int i = boundaries[0]; i < boundaries[1]; i++)
{
graphPoints.Add(new DataPoint(i, plotter.ProcessTree(i, plotter.Root)));
}
mcLaurienSeries.Points.AddRange(mcLaurienPoints);
graphSeries.Points.AddRange(graphPoints);
myModel = new PlotModel()
{
Title = "McLaurien Series (order = " + n + ")"
};
myModel.Series.Add(mcLaurienSeries);
myModel.Series.Add(graphSeries);
plot.Model = myModel;
plotGraph_called = true;
} catch (Exception ex) {
MessageBox.Show(ex.Message);
}
}
