I've been enjoying watching videos from "The Coding Train", which covers a lot of different programming topics, including Mastodon! (https://www.youtube.com/watch?v=sKSxBd56H70) Strangely addictive because the presenter is so enthused.
A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.
Use \( and \) for inline LaTeX, and \[ and \] for display mode.