double TryDoubleInput(istream &cin)
	{
		// Function
		try
		{
		// Declaration
		double value = 0.0; //holds user input

		cin >> value; //Takes user input and saves it to "value"
		value = TryDoubleInput(cin);

		if (cin.fail())
		{
		   //ClearInputBuffer(); // reset the cin object and clear the buffer.
           throw std::exception; //Throw the exception error
		}

		}
		catch(...)
		{
			cerr << "The number entered was invalid. Terminating program."; // exception error
		}
		return value;
	} // end of TryDoubleInput