public void setMain(DifferenceTable mainTable)
{
xmin = (float)mainTable.getX(0);
xmax = (float)mainTable.getX(mainTable.n);
ymin = (float)mainTable.getY(0);
for (int i = 1; i <= mainTable.n; i++)
{
ymin = (ymin < (float)mainTable.getY(i)) ? ymin : (float)mainTable.getY(i);
}
ymax = (float)mainTable.getY(0);
for (int i = 1; i <= mainTable.n; i++)
{
ymax = (ymax > (float)mainTable.getY(i)) ? ymax : (float)mainTable.getY(i);
}
float q = (xmax - xmin) * 0.1F;
xmin -= q;
xmax += q;
q = (ymax - ymin) * 0.1F;
ymin -= q;
ymax += q;
}
public void AddFunction(Polynomial P, Pen pen)
{
DifferenceTable table = new DifferenceTable(control, 200, "", false, false, false);
table.setTable_Polynomial(P, xmin, xmax);
PointsList.Add(table.ToPoints());
PensList.Add(pen);
}
private void button_Func_GetValue_Click(object sender, EventArgs e)
{
int nbPoints;
double a, b;
string expression = textBox_Func_fx.Text;
if (!int.TryParse(textBox_Function_nbPoints.Text, out nbPoints) || nbPoints <= 1)
{
MessageBox.Show("Invalid integer number of points larger than 1 !", "Error !");
textBox_Function_nbPoints.Focus();
textBox_Function_nbPoints.SelectAll();
return;
}
if (!double.TryParse(textBox_Function_a.Text, out a))
{
MessageBox.Show("Invalid double value in (a) !", "Error !");
textBox_Function_a.Focus();
textBox_Function_a.SelectAll();
return;
}
if (!double.TryParse(textBox_Function_b.Text, out b) || b == a)
{
MessageBox.Show("Invalid double value in (b) or is equal to (a) !", "Error !");
textBox_Function_b.Focus();
textBox_Function_b.SelectAll();
return;
}
if (!validExpression(expression))
{
MessageBox.Show("Invalid function !", "Error !");
textBox_Func_fx.Focus();
textBox_Func_fx.SelectAll();
return;
}
table_Integration = new DifferenceTable(table2Panel.Controls, nbPoints, "myIntegrationTableHelp", false, false);
table_Integration.setTable_Expression(expression, a, b);
groupBox_Integration_Table.Enabled = true;
groupBox_Integration_Result.Enabled = false;
}
private void submitBtn_Click(object sender, EventArgs e)
{
int n = 0;
if (!int.TryParse(nbPointsTextBox.Text, out n) || n <= 1)
{
MessageBox.Show("Please enter a valid integer value bigger than 1 !", "Error !");
nbPointsTextBox.Focus();
nbPointsTextBox.SelectAll();
return;
}
table1Panel.Controls.Clear();
table_Interpolation = new DifferenceTable(table1Panel.Controls, n, "myInterpolationTable");
//nbPointsTextBox.Enabled = false;
//submitBtn.Enabled = false;
table1GroupBox.Enabled = true;
functionBtn.Enabled = true;
}
public void AddIntegrationPoints(DifferenceTable table, Pen pen)
{
IntegrationPointsList.Add(table.ToPoints());
IntegrationPensList.Add(pen);
}
public void AddPoints(DifferenceTable table, Pen pen)
{
OnlyPointsList.Add(table.ToPoints());
OnlyPensList.Add(pen);
}
public void AddFunction(DifferenceTable table, Pen pen)
{
PointsList.Add(table.ToPoints());
PensList.Add(pen);
}