private void equals_button_Click(object sender, RoutedEventArgs e)
{
//trim imput, send into parser
//get answer from parser, display on screen
double ans = parser.Parse(Screen.Text.Trim(), isRadians);
//add input and answer to history
TextBlock.AppendText(Screen.Text.Trim() + " = " + ans.ToString() + "\n");
TextBlock.ScrollToEnd();
//clear screen
Screen.Text = ButtonControl.ClearButtonPress(Screen.Text);
}
//misc buttons
private void clear_button_Click(object sender, RoutedEventArgs e)
{
Screen.Text = ButtonControl.ClearButtonPress(Screen.Text);
//TextBlock.Text = ButtonControl.ClearButtonPress(TextBlock.Text);
}