public void ChangeLastOperation(Operation op)
{
if(operations.Count != 0)
operations[operations.Count - 1] = op;
}
private double Calculate(Operation op, double left, double right)
{
switch (op) {
case Operation.Plus:
return left + right;
case Operation.Minus:
return left - right;
case Operation.Mult:
return left * right;
case Operation.Div:
return left / right;
default:
return double.PositiveInfinity;
}
}
public void AddOperation(Operation op)
{
operations.Add(op);
}