For lab 8, we want the following:

• Screenshots of part 2, your grid of buttons. If you have screenshots of the final calculator running, that counts for your screenshot of part 2, just with more stuff.
• Screenshots of the final running calculator.
• The code!
• Make sure you can do some real math (ex. that calculations can be done using the result from the previous operation, you can divide by 0, all your buttons work).