private static void NumberInMemory()
{
Console.WriteLine("Add a number to memory");
double numInMemory;
if (double.TryParse(Console.ReadLine(), out numInMemory))
{
calculator.AddNumberToMemory(numInMemory);
Console.WriteLine("Number successfully added to memory");
}
else
{
Console.WriteLine("You must only print a number");
}
}
