MathJax symbol reference | BrNk

source: https://www.bearnok.com/grva/it/knowledge/software/mathjax

Mathjax plugin for math formula insertion has an extensive documentation.

In Mathjax quick sintax reference tutorial and reference are available.

Symbol	Code
\(( ... )\)	Inline formulas enclose
\([ ... ]\)	Displayed formulas
\({ .. }\)	Curly braces `{}` to group pieces of formulas
\({x_1}^e\)	Superscripts (`^`) and subscripts (`_`)
——————–	Fractions
\(\frac {a} {b}\)	`\frac {a} {b}`
\({ {x} \over {y} }\)	`{ {x} \over {y} }`
——————–	Unscaled parentheses
\((...)\)	`(...)`
\([...]\)	`[...]`
\({ ... }\)	`\{ ... \}`
\(\vert ... \vert\)	`\vert ... \vert`
\(\Vert ... \Vert\)	`\Vert ... \Vert`
\(\langle ... \rangle\)	`\langle ... \rangle`
\(\lceil ... \rceil\)	`\lceil ... \rceil`
\(\lfloor ... \rfloor\)	`\lfloor ... \rfloor`
——————–	Scaled parentheses
\(\left( ... \right)\)	`\left( ... \right)`
\(\left[ ... \right]\)	`\left[ ... \right]`
\(\left{ ... \right}\)	`\left\{ ... \right\}`
\(\left\vert ... \right\vert\)	`\left\vert ... \right\vert`
\(\left\Vert ... \right\Vert\)	`\left\Vert ... \right\Vert`
\(\left\langle ... \right\rangle\)	`\left\langle ... \right\rangle`
\(\left\lceil ... \right\rceil\)	`\left\lceil ... \right\rceil`
\(\left\lfloor ... \right\rfloor\)	`\left\lfloor ... \right\rfloor`
——————–	Hidden parentheses
\(\left{ ... \right.\)	`\left\{ ... \right.`
\(\left. ... \right]\)	`\left. ... \right]`
——————–	Logical Symbols
\(\lt\)	`\lt`
\(\gt\)	`\gt`
\(\le\)	`\le`
\(\leq\)	`\leq`
\(\leqq\)	`\leqq`
\(\leqslant\)	`\leqslant`
\(\ge\)	`\ge`
\(\geq\)	`\geq`
\(\geqq\)	`\geqq`
\(\geqslant\)	`\geqslant`
\(\neq\)	`\neq`
\(\land\)	`\land`
\(\lor\)	`\lor`
\(\lnot\)	`\lnot`
\(\forall\)	`\forall`
\(\exists\)	`\exists`
\(\nexists\)	`\nexists`
\(\top\)	`\top`
\(\bot\)	`\bot`
\(\vdash\)	`\vdash`
\(\vDash\)	`\vDash`
\(\approx\)	`\approx`
\(\sim\)	`\sim`
\(\simeq\)	`\simeq`
\(\cong\)	`\cong`
\(\equiv\)	`\equiv`
\(\prec\)	`\prec`
\(\lhd\)	`\lhd`
\(\therefore\)	`\therefore`
——————–	Operators
\(\times\)	`\times`
\(\div\)	`\div`
\(\pm\)	`\pm`
\(\mp\)	`\mp`
\(\cdot\)	`\cdot`
\(\star\)	`\star`
\(\ast\)	`\ast`
\(\oplus\)	`\oplus`
\(\circ\)	`\circ`
\(\bullet\)	`\bullet`
——————–	Set Symbols
\(\cup\)	`\cup`
\(\cap\)	`\cap`
\(\setminus\)	`\setminus`
\(\subset\)	`\subset`
\(\subseteq\)	`\subseteq`
\(\subsetneq\)	`\subsetneq`
\(\supset\)	`\supset`
\(\in\)	`\in`
\(\notin\)	`\notin`
\(\emptyset\)	`\emptyset`
\(\varnothing\)	`\varnothing`
——————–	Arrows
\(\to\)	`\to`
\(\rightarrow\)	`\rightarrow`
\(\leftarrow\)	`\leftarrow`
\(\Rightarrow\)	`\Rightarrow`
\(\Leftarrow\)	`\Leftarrow`
\(\Leftrightarrow\)	`\Leftrightarrow`
\(\mapsto\)	`\mapsto`
——————–	Special Symbols
\(\infty\)	`\infty`
\(\nabla\)	`\nabla`
\(\partial\)	`\partial`
\(\Im\)	`\Im`
\(\Re\)	`\Re`
\(\ldots\)	`\ldots`
\(\cdots\)	`\cdots`
\(\ell\)	`\ell`
——————–	Trigonometry
\(\sin x\)	`\sin x`
\(\cos x\)	`\cos x`
\(\tan x\)	`\tan x`
\(\cot x\)	`\cot x`
\(\sec x\)	`\sec x`
\(\csc x\)	`\csc x`
\(\arcsin x\)	`\arcsin x`
\(\arccos x\)	`\arccos x`
\(\arctan x\)	`\arctan x`
——————–	Functional Symbols
\(\sqrt{x^3}\)	`\sqrt{x^3}`
\(\sqrt[3]{\frac xy}\)	`\sqrt[3]{\frac xy}`
\(\ln(x)\)	`\ln(x)`
\(\log_{2}(x)\)	`\log_{2}(x)`
\(\sum_{n=1} ^{N} n\)	`\sum_{n=1} ^{N} n`
\(\prod_{n=1} ^{N} n\)	`\prod_{n=1} ^{N} n`
\(\int_{0} ^{\infty} x dx\)	`\int_{0} ^{\infty} x dx`
\(\iint_{0} ^{\infty} x dx\)	`\iint_{0} ^{\infty} x dx`
\(\iiint_{0} ^{\infty} x dx\)	`\iiint_{0} ^{\infty} x dx`
\(\lim_{x \to \infty} {1 \over x }\)	`\lim_{x \to \infty} {1 \over x }`
\(\max(1,2,3)\)	`\max(1,2,3)`
\(\min(3,4,5)\)	`\min(3,4,5)`
\({n+1 \choose 2k}\)	`{n+1 \choose 2k}`
\(\binom{n+1}{2k} (n+12k)\)	`\binom{n+1}{2k} (n+12k)`
——————–	Greek Letters
\(\alpha\)	`\alpha`
\(\beta\)	`\beta`
\(\gamma\)	`\gamma`
\(\delta\)	`\delta`
\(\epsilon\)	`\epsilon`
\(\varepsilon\)	`\varepsilon`
\(\zeta\)	`\zeta`
\(\eta\)	`\eta`
\(\theta\)	`\theta`
\(\vartheta\)	`\vartheta`
\(\iota\)	`\iota`
\(\kappa\)	`\kappa`
\(\lambda\)	`\lambda`
\(\mu\)	`\mu`
\(\nu\)	`\nu`
\(\xi\)	`\xi`
\(\omicron\)	`\omicron`
\(\pi\)	`\pi`
\(\varpi\)	`\varpi`
\(\rho\)	`\rho`
\(\varrho\)	`\varrho`
\(\sigma\)	`\sigma`
\(\varsigma\)	`\varsigma`
\(\tau\)	`\tau`
\(\upsilon\)	`\upsilon`
\(\phi\)	`\phi`
\(\varphi\)	`\varphi`
\(\chi\)	`\chi`
\(\psi\)	`\psi`
\(\omega\)	`\omega`
——————–	Uppercase Greek
\(\Gamma\)	`\Gamma`
\(\Delta\)	`\Delta`
\(\Theta\)	`\Theta`
\(\Lambda\)	`\Lambda`
\(\Xi\)	`\Xi`
\(\Pi\)	`\Pi`
\(\Sigma\)	`\Sigma`
\(\Upsilon\)	`\Upsilon`
\(\Psi\)	`\Psi`
\(\Omega\)	`\Omega`
——————–	Fonts
\(\mathbb{N}\)	`\mathbb{N}`
\(\mathbb{Z}\)	`\mathbb{Z}`
\(\mathbb{Q}\)	`\mathbb{Q}`
\(\mathbb{I}\)	`\mathbb{I}`
\(\mathbb{R}\)	`\mathbb{R}`
\(\mathbb{C}\)	`\mathbb{C}`
\(\text{ is an even number}\)	`\text{ is an even number}`
\(\Bbb{blackboard bold}\)	`\Bbb{blackboard bold}`
\(\mathbf{boldface}\)	`\mathbf{boldface}`
\(\mathit{italics}\)	`\mathit{italics}`
\(\pmb{boldfaced italics}\)	`\pmb{boldfaced italics}`
\(\mathtt{ for typewriter}\)	`\mathtt{ for typewriter}`
\(\mathrm{roman font}\)	`\mathrm{roman font}`
\(\mathsf{sans-serif font}\)	`\mathsf{sans-serif font}`
\(\mathcal{calligraphic letters}\)	`\mathcal{calligraphic letters}`
\(\mathscr{script letters}\)	`\mathscr{script letters}`
\(\mathfrak{Fraktur (old German style) letters}\)	`\mathfrak{Fraktur (old German style) letters}`
——————–	Spaces
\(Thin \ space\)	`Thin \ space`
\(Normal \; space\)	`Normal \; space`
\(Big \quad space\)	`Big \quad space`
\(Bigger \qquad space\)	`Bigger \qquad space`
——————–	Accents & Marks
\(\hat{x}\)	`\hat{x}`
\(\overline{xyz}\)	`\overline{xyz}`
\(\vec{x}\)	`\vec{x}`
\(\widehat{xy}\)	`\widehat{xy}`
\(\bar{x}\)	`\bar{x}`
\(\overrightarrow{xy}\)	`\overrightarrow{xy}`
\(\overleftrightarrow{xy}\)	`\overleftrightarrow{xy}`
\(\dot{x}\)	`\dot{x}`
\(\ddot{x}\)	`\ddot{x}`

Note: other greek uppercase letters == Roman letter.

Examples

Plain text:
- \[\left\{ x \in \mathbb{N} \mid x \text{ is an even number} \right\}\]
The Einstein field equations (EFE)
- \[R_{\mu \nu} - {1 \over 2} g_{\mu \nu}\,R g_{\mu \nu} \Lambda = {8 \pi G \over c^4} T_{\mu \nu}\]
\Biggl(\biggl(\Bigl(\bigl((x)\bigr)\Bigr)\biggr)\Biggr)
- \[\Biggl(\biggl(\Bigl(\bigl((x)\bigr)\Bigr)\biggr)\Biggr)\]