private void InputAreaTextChangedEventHandler(object sender, TextChangedEventArgs e)
{
txtOutput.Clear();
try
{
string[] str = ((TextBox)sender).Text.Split(new string[] { "\n" }, StringSplitOptions.RemoveEmptyEntries);
foreach (string eachStr in str)
{
txtOutput.Text += Calculate.Eval(eachStr);
txtOutput.Text += System.Environment.NewLine;
}
txtOutput.Text = txtOutput.Text.Replace("System.__ComObject", "");
}
catch { }
}
private double F(double txtQuadraticResultX)
{
return(double.Parse(Calculate.Eval(expression, txtVariable.Text, txtQuadraticResultX.ToString())));
}