Simon has nearly completed the basic equations and inequalities course on Khan Academy.
Every time his math teacher comes they solve a couple of inequalities from the course and what happens next is that Simon goes over to his desktop to check his answers in the “Inequalities machine” he programmed! He often has to change the program to fit a new inequality format, so it takes some time. Luckily the math teacher understands how awesome this is. I also think it’s the first time Simon has really programmed something for practical use!
This is how Simon solves the inequalities, by typing them:
Testing the answer in the “Inequalities Machine”:
The original “Inequalities Machine” Simon programmed back in February: