MathJax Cheatsheet: Unterschied zwischen den Versionen

Version vom 28. April 2025, 19:26 Uhr

This is a cheat sheet on which code / markdown notation leads to which MathJax output.

MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers.

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

In order to show fractions a little bit bigger and centered use two dollar signs, i.e.: $$a = \frac{\sqrt{b^2 + c^2}}{2}$$

Printing little bigger works too with $\displaystyle$ ahead of the fraction

Description	Example	LaTeX Code / Markdown
Fractions	$\frac{k m}{h}$	`\frac{km}{h}`
Text with spaces	$kilometers or miles$	`\text{kilometers or miles}`
Superscript / Exponent	$a^{2} + b^{2} = c^{2}$	`a^2 + b^2 = c^2`
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}`
Overline one character	$\overline{a}$	`\overline a`
Overline multiple characters	$\overline{A B}$	`\overline {AB}`
Hat over one character	$\hat{a}$	`\hat a`
Hat over two characters	$\hat{a b}$	`\widehat {ab}`
Matrix with Parentheses	$(\begin{matrix} 0 & 1 \\ 1 & 0 \end{matrix})$	\begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix}
Matrix with Brackets	$[\begin{matrix} 0 & 1 \\ 1 & 0 \end{matrix}]$	\begin{bmatrix} 0 & 1 \\ 1 & 0 \end{bmatrix}
Complex Matrix with Parentheses	$(\begin{matrix} B o b & A l i c e \\ B o b & 0 & 1 \\ A l i c e & 1 & 0 \end{matrix})$	\begin{pmatrix} & Bob & Alice \\ Bob & 0 & 1 \\ Alice & 1 & 0 \end{pmatrix}

I found the following sources which helped me out:

@@ Zeile 62: / Zeile 62: @@
 & 0
   \end{pmatrix}
+|-
+|Matrix with Brackets
+|<math>\begin{bmatrix}
+& 1 \\
+& 0
+\end{bmatrix}</math>
+|
+ \begin{bmatrix}
+& 1 \\
+& 0
+ \end{bmatrix}
 |-
 |Complex Matrix with Parentheses