MathJax Cheat Sheet: Unterschied zwischen den Versionen

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Zeile 37: Zeile 37:
|<math>r_{0_1} + r_{0_2} + ... + r_{0_n}</math>
|<math>r_{0_1} + r_{0_2} + ... + r_{0_n}</math>
|<code>{r_{0_1}​​ + r_{0_2} ​+ ... + r_{0_n}</code>
|<code>{r_{0_1}​​ + r_{0_2} ​+ ... + r_{0_n}</code>
|}
=== Arithmetic Symbols ===
{| class="wikitable" style="background-color:#ffffff;"
!Description
!Example
!LaTeX Code / Markdown
|-
|equal
|<math>=</math>
|<code>\=</code>
|-
|not equal
|<math>\neq</math>
|<code>\neq</code>
|-
|around
|<math>\approx</math>
|<code>\approx</code>
|-
|Hat over one character
|<math>\hat a</math>
|<code>\hat a</code>
|}
|}


Zeile 48: Zeile 71:
|<math>\infty</math>
|<math>\infty</math>
|<code>\infty</code>
|<code>\infty</code>
|-
|Absolute
|<math>\vert x \vert</math>
|<code>\vert</code>
|-
|-
|Overline one character
|Overline one character
Zeile 72: Zeile 99:
|<math>\displaystyle \sum_{i=1}^n a_i</math>
|<math>\displaystyle \sum_{i=1}^n a_i</math>
|<code>\displaystyle \sum_{i=1}^n a_i</code>
|<code>\displaystyle \sum_{i=1}^n a_i</code>
|}
=== Greek Letters ===
{| class="wikitable" style="background-color:#ffffff;"
!Description
!Example
!LaTeX Code / Markdown
|-
|phi
|<math>\phi</math>
|<code>\phi</code>
|-
|epsilon
|<math>\epsilon</math>
|<code>\epsilon</code>
|-
|sigma
|<math>\sigma</math>
|<code>\sigma</code>
|}
|}


Version vom 19. September 2025, 18:52 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.

MathJax in Obsidian.md

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

Cheatsheet

Formatting

Description Example LaTeX Code / Markdown
Fractions kmh \frac{km}{h}
Text with spaces kilometers or miles \text{kilometers or miles}
Superscript / Exponent a2+b2=c2 a^2 + b^2 = c^2
Subscript a1..an a_1..a_n
Double Subscript r01+r02+...+r0n {r_{0_1}​​ + r_{0_2} ​+ ... + r_{0_n}

Arithmetic Symbols

Description Example LaTeX Code / Markdown
equal = \=
not equal ≠ \neq
around ≈ \approx
Hat over one character a^ \hat a

Symbols

Description Example LaTeX Code / Markdown
Infinity ∞ \infty
Absolute |x| \vert
Overline one character a‾ \overline a
Overline multiple characters AB‾ \overline {AB}
Hat over one character a^ \hat a
Hat over two characters ab^ \widehat {ab}
Sum of a set ∑i=1nai \sum_{i=1}^n a_i
Sum of a set (larger) ∑i=1nai \displaystyle \sum_{i=1}^n a_i

Greek Letters

Description Example LaTeX Code / Markdown
phi ϕ \phi
epsilon ϵ \epsilon
sigma σ \sigma

Constants

Description Example LaTeX Code / Markdown
Pi π \pi
Euler's Number e \mathrm{e}

Matrices

Description Example LaTeX Code / Markdown
Matrix with Parentheses (0110) 
\begin{pmatrix}
0 & 1 \\ 
1 & 0
\end{pmatrix}
Matrix with Brackets [0110] 
\begin{bmatrix}
0 & 1 \\ 
1 & 0
\end{bmatrix}
Complex Matrix with Parentheses (BobAliceBob01Alice10) 
\begin{pmatrix}
 & ​Bob & Alice \\
Bob & 0 & 1 \\
Alice & 1 & 0  
\end{pmatrix}


Sources

I found the following sources which helped me out:

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