Brush up big man
That kind of reminds me calculus. I had 3 semesters of it in college but never once were we told what it was used for. It's was all theory with no practical application. Some years later I considered going back to school and knew that I'd need to brush up on the calculus. A friend taught at the local college and he gave me a salesman's sample of a business calculus text book. It was all application, it assumed you already knew the theory. The lights came on. So THAT's what that stuff is for! The original classes would have been much easier if this was how it was taught instead of by a bunch of math PhD's who had never worked in the real world.