I took notes using emacs and LaTeX in similar fashion. But I started by doing all of my assignments with it until I became proficient enough. I can type much fa

I took notes using emacs and LaTeX in similar fashion. But I started by doing all of my assignments with it until I became proficient enough. I can type much faster than I write. I didn’t use any Elisp to help — though I probably should have in retrospect. I did have some common LaTeX macros/commands. It was nice to have the notes to study from in the end. This helped most in doing assignments and is what I’d recommend to others. I would write by pencil and paper then type as LaTeX. This forced me to review my solutions and fix mistakes or improve them. I didn’t attempt to get too fancy with plots in real-time (I kept a notebook for those courses) but I did do graph theory and commutative diagrams (category theory) with tikz.