- TL;DR Summary
- list of supported commands seems to have moved
For MathJax documentation, see the https://docs.mathjax.org/en/latest/mathjax.html. In particular, you can find a complete list of LaTeX commands supported by MathJax https://docs.mathjax.org/en/latest/tex.html#supported-latex-commands
Last link points to https://docs.mathjax.org/en/latest/tex.html#supported-latex-commands which is no more
I think it's https://docs.mathjax.org/en/latest/input/tex/macros/index.html now
However, there is far too much in there that doesn't work in the PF version, so maybe there is another link for our subset ?