private void arithmitic_click(object sender, EventArgs e)
{
Engine.UI.ClassicButton num = (Engine.UI.ClassicButton)sender;
if (txtNumbers.Text.Contains("∞"))
{
txtNumbers.Clear();
}
if (prevnum != 0)
{
if (num.Text == "sqrt")
{
prevnum = Math.Sqrt(double.Parse(txtNumbers.Text));
}
if (num.Text == "1/x")
{
prevnum = Convert.ToDouble(1.0 / Convert.ToDouble(txtNumbers.Text));
}
if (num.Text == "%")
{
prevnum = Convert.ToDouble(txtNumbers.Text) / 100;
}
Button21.PerformClick();
operation = num.Text;
operation_pressed = true;
}
else if (num.Text == "sqrt")
{
prevnum = Math.Sqrt(double.Parse(txtNumbers.Text));
txtNumbers.Text = prevnum.ToString();
}
else if (num.Text == "1/x")
{
prevnum = Convert.ToDouble(1.0 / Convert.ToDouble(txtNumbers.Text));
txtNumbers.Text = prevnum.ToString();
}
else if (num.Text == "%")
{
prevnum = Convert.ToDouble(txtNumbers.Text) / 100;
txtNumbers.Text = prevnum.ToString();
}
else
{
operation = num.Text;
prevnum = double.Parse(txtNumbers.Text);
txtNumbers.Text = "0";
operation_pressed = true;
}
}
private void number_click(object sender, EventArgs e)
{
if (txtNumbers.Text.Contains("∞"))
{
txtNumbers.Clear();
}
if ((txtNumbers.Text == "0") || (operation_pressed))
{
txtNumbers.Text = "";
}
operation_pressed = false;
Engine.UI.ClassicButton num = (Engine.UI.ClassicButton)sender;
if (num.Text == ".")
{
if (!txtNumbers.Text.Contains("."))
{
txtNumbers.Text = txtNumbers.Text + num.Text;
}
}
else
{
txtNumbers.Text = txtNumbers.Text + num.Text;
}
}
