[The Comprehensive LaTeX Symbol List](https://blog.gyx.me/material/mathjax-symbol-list.pdf) Scott Pakin, 2020 (PDF, 348pp)
[MathJax basic tutorial and quick reference](https://math.meta.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference)
LaTeX/Mathematics https://en.wikibooks.org/wiki/LaTeX/Mathematics
Difference between TeX, LaTeX and other related formats https://www.texifier.com/docs/tutorials/tex/advanced/tex-vs-latex
UpMath - Markdown + LaTeX https://upmath.me/
https://en.wikipedia.org/wiki/TeX
How to display maths formulas and equations in a webpage https://codingislove.com/display-maths-formulas-webpage/
List of LaTeX editors https://itsfoss.com/latex-editors-linux/
Overleaf laTeX editor https://www.overleaf.com/
LaTeX in Freeplane: https://docs.freeplane.org/user-documentation/LaTeX_in_Freeplane.html
See also MathJax