You will need to type your problem sets and submit them as PDF files. You can use the LaTeX file we provide and a LaTeX editing platform such as overleaf. \Some trial and error is probably the best way to learn TeX/LaTeX math, but one good starting point is this section in the LaTeX wikibook. Here is one useful list of LaTex symbols (see also this cheat sheet ) and you can also use the DeTexify website to draw a symbol and get the corresponding LaTeX code.