I have been playing around with this and not uploading it becasue I keep realising I could improve on it. Both the look and the programme. Then I realised if I put it on the website other people might play around with it and make it better for me. Click on the green flag to reset everything, change the operators and values by clicking on them and then either run the function machine with your chosen input or see how to express the machine as a linear equation.
