private void Func_SelectedItemChanged(object sender, EventArgs e)
{
//if (Func.SelectedItem.ToString() == "y' = Sin(x)")
//{
// CurrentFunction = Math.Sin;
// CF = "Sin(x)";
//}
if (Func.SelectedItem.ToString() == "y' = Sqrt(x)")
{
CurrentFunction = Math.Sqrt;
CF = "Sqrt(x)";
}
if (Func.SelectedItem.ToString() == "y' = x^2")
{
CurrentFunction = x => x * x;
CF = "x^2";
}
if (Func.SelectedItem.ToString() == "y' = x^4")
{
CurrentFunction = x => x * x * x * x;
CF = "x^4";
}
//MessageBox.Show(CurrentFunction(5).ToString());
}
private void Func_SelectedItemChanged(object sender, EventArgs e)
{
if (Func.SelectedItem.ToString() == "Sin(x)")
{
FirstNode.Minimum = -1000;
Xnum.Minimum = -1000;
CurrentFunction = Math.Sin;
}
if (Func.SelectedItem.ToString() == "Sqrt(x)")
{
FirstNode.Minimum = 0;
Xnum.Minimum = 0;
CurrentFunction = Math.Sqrt;
}
if (Func.SelectedItem.ToString() == "x^2")
{
FirstNode.Minimum = -1000;
Xnum.Minimum = -1000;
CurrentFunction = x => x * x;
}
Fx.Text = Func.SelectedItem.ToString();
//MessageBox.Show(CurrentFunction(5).ToString());
}
public Form1()
{
InitializeComponent();
this.FormBorderStyle = FormBorderStyle.FixedSingle;
//MaximizeBox = false;
Chart.Visible = false;
CurrentFunction = Math.Sqrt;
//Func.Items.Add("y' = Sin(x)");
Func.Items.Add("y' = Sqrt(x)");
Func.Items.Add("y' = x^2");
//Func.Items.Add("y' = Tg(x)");
Func.Items.Add("y' = x^4");
Func.ReadOnly = true;
Func.SelectedIndex = 0;
FirstX.DecimalPlaces = 1;
FirstX.Increment = 0.1M;
FirstY.DecimalPlaces = 1;
FirstY.Increment = 0.1M;
LastX.DecimalPlaces = 1;
LastX.Increment = 0.1M;
Precision.Value = 0.1M;
Precision.Minimum = 0.1M;
Precision.Increment = 0.1M;
Precision.DecimalPlaces = 1;
FirstY.KeyPress += new KeyPressEventHandler(Key_down);
FirstX.KeyPress += new KeyPressEventHandler(Key_down);
Precision.KeyPress += new KeyPressEventHandler(Key_down);
LastX.KeyPress += new KeyPressEventHandler(Key_down);
}
public Form1()
{
InitializeComponent();
this.FormBorderStyle = FormBorderStyle.FixedSingle;
//MaximizeBox = false;
Chart.Visible = false;
Fxtb.ReadOnly = true;
Xnum.Minimum = -1000;
Xnum.DecimalPlaces = 3;
CurrentFunction = Math.Sin;
Func.Items.Add("Sin(x)");
Func.Items.Add("Sqrt(x)");
Func.Items.Add("x^2");
Func.ReadOnly = true;
FirstNode.Minimum = -1000;
FirstNode.DecimalPlaces = 4;
Func.SelectedIndex = 0;
Step.DecimalPlaces = 4;
Step.Increment = 0.1M;
Step.Minimum = 0.1M;
Steps.Value = 20;
Steps.Minimum = 1;
Steps.Maximum = 10000;
Steps.KeyPress += new KeyPressEventHandler(Key_down);
Step.KeyPress += new KeyPressEventHandler(Key_down);
FirstNode.KeyPress += new KeyPressEventHandler(Key_down);
Fx.Text = Func.SelectedItem.ToString();
}
