I don't know if this is the right place to ask this question. If it's not please redirect me to the appropriate location.
First, a little bit of background. I studied mechanical engineering and even got my degree more than 15 years ago. I never worked in the field since then so almost all the knowledge I got at that time just vanished. I recently stumble on Project Euler and I thought I'll give it a try. Both to get back with mathematics and to improve my coding.
Here come the question. What resources (books, web-sites) do you recommend to get back with mathematics? I'd like to have sufficient knowledge to be able to do basic electronics. Here is the list of things I would like to understand again:
- derivative
- integral
- differential
- series
- complex number
To achieve that, I started watching NumberPhile. It is a nice channel but the theory is not explained as deeply as it could be in a book. My guess is to keep people interested.