THis is basically just a better version of myprevious attempt at a calculator that worked but didn't really look like the traditional calculator. Below I will explain how some of the programming works Like my previous calculator it uses two variables to display the numbers being worked with but you can't see them both because one is hidden. The first number goes into the first variable and then when a button is pressed it goes to the second and the action of the button that is pressed goes into a third variable where it is needed later., When the second number is entered and the equals button is pressed it works out what the action is and applies that action to the value of the two variables. It then changes the viewable variable to the result of the action applied to the two other variables. If you do not understand this then please feel free to download it and play around with it and work it out.