Some well-explained math
Despite taking a minor in mathematics, I never really grokked matrices. I didn't even realize why it's called linear algebra (or at least I forgot quickly). These blog posts do a good job of making them more intuitive to me: The basics of matrices: https://dhruvp.netlify.com/2018/12/31/matrices / Eigenvectors: https://dhruvp.netlify.com/2018/12/31/matrices /