I joined an honours linear algebra course late in the year and I've been finding it very difficult to understand the material in our class and homework. We don't have a textbook, and the questions often involve a lot of proof and strong understanding of concepts that aren't explicitly talked about in class. Is there any online resource that goes through linear algebra in depth?
I know I could ask my professor, but as a student who's usually somewhat good at math I just feel really awkward and would like to at least learn what I can on my own before I go and ask her.