This is a great resource. I'm slowly relearning my engineering maths from 30 years ago. It is good to have source of problems to work through.
A couple of suggestions.
1. It would be nice to be able designate one of the comments as the best answer rather than have to wade through a lot of comments to find the solution.
2. I find the name "Teach Yourself Math" a bit misleading. The names suggests that the site provides a structured introduction to math much like a textbook, not a bunch a math problems that require some existing knowledge to work on. Some of this expectation comes from associating the "Teach Yourself" name with the Teach Yourself series of books intended for self learners.
A couple of suggestions.
1. It would be nice to be able designate one of the comments as the best answer rather than have to wade through a lot of comments to find the solution.
2. I find the name "Teach Yourself Math" a bit misleading. The names suggests that the site provides a structured introduction to math much like a textbook, not a bunch a math problems that require some existing knowledge to work on. Some of this expectation comes from associating the "Teach Yourself" name with the Teach Yourself series of books intended for self learners.