Following Mark Bennet's question on Short and helpful advice on using Mathjax on this site, I've began drafting a tutorial aimed at complete beginners. It can be found here. It is made up of $5$ sections:
- Getting started
- Understanding MathJax syntax
- Numbers and arithmetic
- Chaining syntax together
(There's also a section on calculus notation, but I'm considering breaking that off from the main answer since it doesn't strike me as completely essential that a user knows those commands right off the bat.)
I've tried my best to include the syntax that comes up the most frequently, but it's almost certain that I have omitted a thing or two. Does anyone have the technical know-how to search through this site to find the MathJax commands that come up the most frequently in posts? Perhaps there is a way of finding this out using the site analytics. Thank you.