I don't know if I should keep reviewing my undergraduate math

[Eclair_de_XII]

On one hand, I'm afraid I'm going to forget how to do it. On the other, some of the material feels tedious and stale. Sometimes, I encounter material I've covered and have never had to use outside the class I learned it in, which is sort of discouraging. I'm already having difficulty tackling some of the problems in my old elementary calculus book, having switched back to it after concluding that I wasn't too fond of the other textbook I had been using. Sometimes, it feels tedious to review things I'm not going to be using and/or needing anytime soon, given that I do not really plan on returning to college right now. Yet, the fact that I'm having difficulty with material I have already covered worries me. At the same time, I don't feel like the frustration is really worth it. It's like I'm trying to sharpen a rusted axe everyday, but there aren't even any trees to cut down anymore, metaphorically speaking.

 

[Office_Shredder]

What are you reviewing it for, are you still in school and trying to make sure you know what you need for future courses, or just doing it for fun outside of a school setting?

 

[russ_watters]

The only thing I use differential equations for anymore is making jokes in PowerPoint presentations about how terrible differential equations are.

 

[robphy]

Rather than getting practice by "reviewing" the math,
maybe it's better to get practice by "applying" the math to various problems that are of interest to you.

Maybe you can build something, or model it on a computer.
Or maybe think how you would teach it to someone else [possibly with new methods... can it be visualized?]... often, I learn a lot by having to teach it to someone else.