MathJax Cheatsheet

This is a cheat sheet on which code / markdown notation leads to which MathJax output. As MathJax seems to be somewhat compatible to LaTeX, some LaTeX Keywords seem to work too.

When using inside Obsidian.md the code representing the MathJax formula needs start and end with the dollar sign, i.e.: $a_1..a_n$

Cheatsheet

Description	Example	Code / Markdown
Subscript	$a_1..a_n$	a_1..a_n
Double Subscript	$r_{0_1}+r_{0_2}+...+r_{0_n}$	{r_{0_1}​​ + r_{0_2} ​+ ... + r_{0_n}
Superscript / Exponent	$a^2+b^2=c^2$	a^2 + b^2 = c^2
Matrix with Parentheses	$\left(\begin{array}{cc}0& 1\\ 1& 0\end{array}\right)$	\begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix}
Complex Matrix with Parentheses	$\left(\begin{array}{ccc}& Bob& Alice\\ Bob& 0& 1\\ Alice& 1& 0\end{array}\right)$	\begin{pmatrix} & ​Bob & Alice \\ Bob & 0 & 1 \\ Alice & 1 & 0  \end{pmatrix}

Sources

I found the following sources which helped me out:

• https://de.wikipedia.org/wiki/Liste_mathematischer_Symbole (German)
• https://en.wikipedia.org/wiki/Glossary_of_mathematical_symbols
• https://math.meta.stackexchange.com/questions/5020/mathjax-basic-tutorial-and-quick-reference
• https://easy-copy-mathjax.nakaken88.com/en/matrix/
• https://bearnok.com/grva/en/knowledge/software/mathjax
• https://jojozhuang.github.io/tutorial/mathjax-cheat-sheet-for-mathematical-notation/