private double GetResult()
{
var stack = new Stack<string>();
//обрабатываем массив
foreach (var str in _polishNotation)
{
if (str == null)
break;
if (GetPriority(str) == -1)
stack.Push(str);
else
if (str == "*" || str == "/" || str == "+" || str == "-" || str == "^")
{
double first = 0, second = 0;
double.TryParse(stack.Pop(), out second);
double.TryParse(stack.Pop(), out first);
switch (str)
{
case "+":
stack.Push((first + second).ToString(CultureInfo.InvariantCulture));
break;
case "-":
stack.Push((first - second).ToString(CultureInfo.InvariantCulture));
break;
case "*":
stack.Push((first * second).ToString(CultureInfo.InvariantCulture));
break;
case "/":
stack.Push((first / second).ToString(CultureInfo.InvariantCulture));
break;
case "^":
stack.Push(Math.Pow(first, second).ToString(CultureInfo.InvariantCulture));
break;
}
}
//Console.WriteLine(stack.top());
}
double result;
if ((stack.GetSize() != 1) || !double.TryParse(stack.Top(), out result))
{
//Console.WriteLine("Incorrect Input");
throw new IndexOutOfRangeException();
}
return result;
}