Пример #1
0
 // DEl Sqrt X^2 1/X
 private void Expandfun_Click(object sender, RoutedEventArgs e)
 {
     if (sender == delButton)
     {
         if (resultLable.Content.ToString().Length != 1)
         {
             resultLable.Content = resultLable.Content.ToString().
                                   Substring(0, resultLable.Content.ToString().Length - 1);
         }
         else
         {
             resultLable.Content = "0";
         }
     }
     if (sender == sqrtButton)
     {
         if (double.TryParse(resultLable.Content.ToString(), out lastValue))
         {
             lastValue           = Math.Sqrt(lastValue);
             resultLable.Content = lastValue.ToString();
         }
     }
     if (sender == powButton)
     {
         if (double.TryParse(resultLable.Content.ToString(), out lastValue))
         {
             lastValue           = SimpleMath.pow(lastValue);
             resultLable.Content = lastValue.ToString();
         }
     }
     if (sender == revButton)
     {
         if (double.TryParse(resultLable.Content.ToString(), out lastValue))
         {
             lastValue           = SimpleMath.rev(lastValue);
             resultLable.Content = lastValue.ToString();
         }
     }
 }