LaTex Math Support

2023.10.22

19 mins to read

The content in this page is copied from the KaTeX Official Supported Functions page. I have only made some changes to fit the migration with the Hugo system.

Accents


$a'$	`a'`	$\tilde{a}$	`\tilde{a}`	$\mathring{g}$	`\mathring{g}`
$a’'$	`a''`	$\widetilde{ac}$	`\widetilde{ac}`	$\overgroup{AB}$	`\overgroup{AB}`
$a^{\prime}$	`a^{\prime}`	$\utilde{AB}$	`\utilde{AB}`	$\undergroup{AB}$	`\undergroup{AB}`
$\acute{a}$	`\acute{a}`	$\vec{F}$	`\vec{F}`	$\Overrightarrow{AB}$	`\Overrightarrow{AB}`
$\bar{y}$	`\bar{y}`	$\overleftarrow{AB}$	`\overleftarrow{AB}`	$\overrightarrow{AB}$	`\overrightarrow{AB}`
$\breve{a}$	`\breve{a}`	$\underleftarrow{AB}$	`\underleftarrow{AB}`	$\underrightarrow{AB}$	`\underrightarrow{AB}`
$\check{a}$	`\check{a}`	$\overleftharpoon{ac}$	`\overleftharpoon{ac}`	$\overrightharpoon{ac}$	`\overrightharpoon{ac}`
$\dot{a}$	`\dot{a}`	$\overleftrightarrow{AB}$	`\overleftrightarrow{AB}`	$\overbrace{AB}$	`\overbrace{AB}`
$\ddot{a}$	`\ddot{a}`	$\underleftrightarrow{AB}$	`\underleftrightarrow{AB}`	$\underbrace{AB}$	`\underbrace{AB}`
$\grave{a}$	`\grave{a}`	$\overline{AB}$	`\overline{AB}`	$\overlinesegment{AB}$	`\overlinesegment{AB}`
$\hat{\theta}$	`\hat{\theta}`	$\underline{AB}$	`\underline{AB}`	$\underlinesegment{AB}$	`\underlinesegment{AB}`
$\widehat{ac}$	`\widehat{ac}`	$\widecheck{ac}$	`\widecheck{ac}`	$\underbar{X}$	`\underbar{X}`

Accent functions inside `\\text{...}`


$\text{'{a}}$	`\'{a}`	$\text{~{a}}$	`\~{a}`	$\text{.{a}}$	`\.{a}`	$\text{\H{a}}$	`\H{a}`
$\text{`{a}}$	\`{a}	$\text{={a}}$	`\={a}`	$\text{"{a}}$	`\"{a}`	$\text{\v{a}}$	`\v{a}`
$\text{\^{a}}$	`\\^{a}`	$\text{\u{a}}$	`\u{a}`	$\text{\r{a}}$	`\r{a}`

See also letters and unicode.

Delimiters

Symbol	Syntax 1	Syntax 2	Symbol	Syntax 1	Syntax 2
$(~)$	`( )`	`\lparen \rparen`	$⌈~⌉$	`⌈ ⌉`	`\lceil \rceil`
$[~]$	`[ ]`	`\lbrack \rbrack`	$⌊~⌋$	`⌊ ⌋`	`\lfloor \rfloor`
$\{ \}$	`\\{ \\}`	`\lbrace \rbrace`	$⎰⎱$	`⎰ ⎱`	`\lmoustache \rmoustache`
$⟨~⟩$	`⟨ ⟩`	`\langle \rangle`	$⟮~⟯$	`⟮ ⟯`	`\lgroup \rgroup`
$┌ ┐$	`┌ ┐`	`\ulcorner \urcorner`	$└ ┘$	`└ ┘`	`\llcorner \lrcorner`
$\vert$	`\|`	`\vert`	$\Vert$	`∥`	`\Vert`
$⟦~⟧$	`⟦` `⟧`	`\llbracket` `\rrbracket`	$\lBrace~\rBrace$	`\lBrace \rBrace`
$\lvert~\rvert$	`\lvert` `\rvert`		$\lVert~\rVert$	`\lVert` `\rVert`
$\lang~\rang$	`\lang` `\rang`		$\lt~\gt$	`\lt` `\gt`
$\backslash$	`\backslash`
$\downarrow$	`\downarrow`		$\Downarrow$	`\Downarrow`
$\uparrow$	`\uparrow`		$\Uparrow$	`\Uparrow`
$\updownarrow$	`\updownarrow`		$\Updownarrow$	`\Updownarrow`

Delimiter Sizing

$\left(\LARGE{AB}\right)$ \left(\LARGE{AB}\right)
$( \big( \Big( \bigg( \Bigg($ ( \big( \Big( \bigg( \Bigg(


`\left`	`\big`	`\bigl`	`\bigm`	`\bigr`
`\middle`	`\Big`	`\Bigl`	`\Bigm`	`\Bigr`
`\right`	`\bigg`	`\biggl`	`\biggm`	`\biggr`
	`\Bigg`	`\Biggl`	`\Biggm`	`\Biggr`

Environments

$\begin{matrix} a & b \\ c & d \end{matrix}$	`\begin{matrix} a & b \\\\ c & d \end{matrix}`	$\begin{array}{cc}a & b \\ c & d \end{array}$	`\begin{array}{cc} a & b \\\\ c & d \end{array}`
$\begin{pmatrix} a & b \\ c & d \end{pmatrix}$	`\begin{pmatrix} a & b \\\\ c & d \end{pmatrix}`	$\begin{bmatrix} a & b \\ c & d \end{bmatrix}$	`\begin{bmatrix} a & b \\\\ c & d \end{bmatrix}`
$\begin{vmatrix} a & b \\ c & d \end{vmatrix}$	`\begin{vmatrix} a & b \\\\ c & d \end{vmatrix}`	$\begin{Vmatrix} a & b \\ c & d \end{Vmatrix}$	`\begin{Vmatrix} a & b \\\\ c & d \end{Vmatrix}`
$\begin{Bmatrix} a & b \\ c & d \end{Bmatrix}$	`\begin{Bmatrix} a & b \\\\ c & d \end{Bmatrix}`	$\def\arraystretch{1.5}\begin{array}{c:c:c} a & b & c \\ \hline d & e & f \\ \hdashline g & h & i \end{array}$	`\def\arraystretch{1.5} \begin{array}{c:c:c} a & b & c \\\ \hline d & e & f \\\ \hdashline g & h & i \end{array}`
$x = \begin{cases} a & \text{if } b \\ c & \text{if } d \end{cases}$	`x = \begin{cases} a & \\text{if } b \\\\ c & \\text{if } d \end{cases}`	$\begin{rcases} a &\text{if } b \\ c &\text{if } d \end{rcases}⇒...$	`\begin{rcases} a & \\text{if } b \\\\ c & \\text{if } d \end{rcases}⇒...`
$\begin{smallmatrix} a & b \\ c & d \end{smallmatrix}$	`\begin{smallmatrix} a & b \\\\ c & d \end{smallmatrix}`	$$\sum_{\begin{subarray}{l} i\in\Lambda\\ 0<j<n\end{subarray}}$$	`\sum_{ \begin{subarray}{l} i \\in \\Lambda \\\\ 0 < j < n \end{subarray} }`

The auto-render extension will render the following environments even if they are not inside math delimiters such as $...$ . They are display-mode only.

\begin{equation}\begin{split}a &=b+c \\ &=e+f \end{split}\end{equation}

\begin{equation}
    \begin{split}
        a & = b + c \\
          & = e + f
    \end{split}
\end{equation}

\begin{align} a&=b+c \\ d+e&=f \end{align}

\begin{align}
        a &= b + c \\
    d + e &=f
\end{align}

\begin{gather} a=b \\ e=b+c \end{gather}

 \begin{gather}
    a = b       \\
    e = b + c
\end{gather}

\begin{alignat}{2} 10&x+&3&y=2 \\ 3&x+&13&y=4 \end{alignat}

\begin{alignat}{2}
    10 & x + &  3 & y = 2   \\
     3 & x + & 13 & y = 4
\end{alignat}

\begin{CD} A @>a>> B \\ @VbVV @AAcA \\ C @= D \end{CD}

\begin{CD}
    A @>a>> B   \\
    @VbVV @AAcA \\
    C @= D
\end{CD}

Other KaTeX Environments

Environments	How they differ from those shown above
`darray`, `dcases`, `drcases`	apply `displaystyle`
`matrix`, `pmatrix`, `bmatrix`, `Bmatrix`, `vmatrix`, `Vmatrix`	take an optional argument to set column alignment, as in `\begin{matrix*}[r]`
`equation`, `gather`, `align`, `alignat`	have no automatic numbering. Alternatively, you can use `\nonumber` or `\notag` to omit the numbering for a specific row of the equation.
`gathered`, `aligned`, `alignedat`	1. do not need to be in display mode. 2. have no automatic numbering. 3. must be inside math delimiters in order to be rendered by the auto-render extension.

Acceptable line separators include: \\\\, \cr, \\\\[distance], and \cr[distance]. Distance can be written with any of the KaTeX units.
The {array} environment supports | and : vertical separators.
The {array} environment does not yet support \cline or \multicolumn.
\tag can be applied to individual rows of top-level environments (align, align*, alignat, alignat*, gather, gather*).

Letters and Unicode

Greek Letters

Direct Input: $Α Β Γ Δ Ε Ζ Η Θ Ι \allowbreak Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω$ $\allowbreak α β γ δ ϵ ζ η θ ι κ λ μ ν ξ o π \allowbreak ρ σ τ υ ϕ χ ψ ω ε ϑ ϖ ϱ ς φ ϝ$


$\Alpha$ `\Alpha`	$\Beta$ `\Beta`	$\Gamma$ `\Gamma`	$\Delta$ `\Delta`
$\Epsilon$ `\Epsilon`	$\Zeta$ `\Zeta`	$\Eta$ `\Eta`	$\Theta$ `\Theta`
$\Iota$ `\Iota`	$\Kappa$ `\Kappa`	$\Lambda$ `\Lambda`	$\Mu$ `\Mu`
$\Nu$ `\Nu`	$\Xi$ `\Xi`	$\Omicron$ `\Omicron`	$\Pi$ `\Pi`
$\Rho$ `\Rho`	$\Sigma$ `\Sigma`	$\Tau$ `\Tau`	$\Upsilon$ `\Upsilon`
$\Phi$ `\Phi`	$\Chi$ `\Chi`	$\Psi$ `\Psi`	$\Omega$ `\Omega`
$\varGamma$ `\varGamma`	$\varDelta$ `\varDelta`	$\varTheta$ `\varTheta`	$\varLambda$ `\varLambda`
$\varXi$ `\varXi`	$\varPi$ `\varPi`	$\varSigma$ `\varSigma`	$\varUpsilon$ `\varUpsilon`
$\varPhi$ `\varPhi`	$\varPsi$ `\varPsi`	$\varOmega$ `\varOmega`
$\alpha$ `\alpha`	$\beta$ `\beta`	$\gamma$ `\gamma`	$\delta$ `\delta`
$\epsilon$ `\epsilon`	$\zeta$ `\zeta`	$\eta$ `\eta`	$\theta$ `\theta`
$\iota$ `\iota`	$\kappa$ `\kappa`	$\lambda$ `\lambda`	$\mu$ `\mu`
$\nu$ `\nu`	$\xi$ `\xi`	$\omicron$ `\omicron`	$\pi$ `\pi`
$\rho$ `\rho`	$\sigma$ `\sigma`	$\tau$ `\tau`	$\upsilon$ `\upsilon`
$\phi$ `\phi`	$\chi$ `\chi`	$\psi$ `\psi`	$\omega$ `\omega`
$\varepsilon$ `\varepsilon`	$\varkappa$ `\varkappa`	$\vartheta$ `\vartheta`	$\thetasym$ `\thetasym`
$\varpi$ `\varpi`	$\varrho$ `\varrho`	$\varsigma$ `\varsigma`	$\varphi$ `\varphi`
$\digamma $ `\digamma`

Other Letters


$\imath$ `\imath`	$\nabla$ `\nabla`	$\Im$ `\Im`	$\Reals$ `\Reals`	$\text{\OE}$ `\text{\OE}`
$\jmath$ `\jmath`	$\partial$ `\partial`	$\image$ `\image`	$\wp$ `\wp`	$\text{\o}$ `\text{\o}`
$\aleph$ `\aleph`	$\Game$ `\Game`	$\Bbbk$ `\Bbbk`	$\weierp$ `\weierp`	$\text{\O}$ `\text{\O}`
$\alef$ `\alef`	$\Finv$ `\Finv`	$\N$ `\N`	$\Z$ `\Z`	$\text{\ss}$ `\text{\ss}`
$\alefsym$ `\alefsym`	$\cnums$ `\cnums`	$\natnums$ `\natnums`	$\text{\aa}$ `\text{\aa}`	$\text{\i}$ `\text{\i}`
$\beth$ `\beth`	$\Complex$ `\Complex`	$\R$ `\R`	$\text{\AA}$ `\text{\AA}`	$\text{\j}$ `\text{\j}`
$\gimel$ `\gimel`	$\ell$ `\ell`	$\Re$ `\Re`	$\text{\ae}$ `\text{\ae}`
$\daleth$ `\daleth`	$\hbar$ `\hbar`	$\real$ `\real`	$\text{\AE}$ `\text{\AE}`
$\eth$ `\eth`	$\hslash$ `\hslash`	$\reals$ `\reals`	$\text{\oe}$ `\text{\oe}`

Direct Input: $∂ ∇ ℑ Ⅎ ℵ ℶ ℷ ℸ ⅁ ℏ ð − ∗$ ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖÙÚÛÜÝÞßàáâãäåçèéêëìíîïðñòóôöùúûüýþÿ ₊₋₌₍₎₀₁₂₃₄₅₆₇₈₉ₐₑₕᵢⱼₖₗₘₙₒₚᵣₛₜᵤᵥₓᵦᵧᵨᵩᵪ⁺⁻⁼⁽⁾⁰¹²³⁴⁵⁶⁷⁸⁹ᵃᵇᶜᵈᵉᵍʰⁱʲᵏˡᵐⁿᵒᵖʳˢᵗᵘʷˣʸᶻᵛᵝᵞᵟᵠᵡ
Math-mode Unicode (sub|super)script characters will render as if you had written regular characters in a subscript or superscript. For instance, A²⁺³ will render the same as A^{2+3}.

Unicode Mathematical Alphanumeric Symbols

Item	Range	Item	Range
Bold	$\text{𝐀-𝐙 𝐚-𝐳 𝟎-𝟗}$	Double-struck	$\text{𝔸-}ℤ\ 𝕜$
Italic	$\text{𝐴-𝑍 𝑎-𝑧}$	Sans serif	$\text{𝖠-𝖹 𝖺-𝗓 𝟢-𝟫}$
Bold Italic	$\text{𝑨-𝒁 𝒂-𝒛}$	Sans serif bold	$\text{𝗔-𝗭 𝗮-𝘇 𝟬-𝟵}$
Script	$\text{𝒜-𝒵}$	Sans serif italic	$\text{𝘈-𝘡 𝘢-𝘻}$
Fractur	$\text{𝔄-ℨ}\text{ 𝔞-𝔷}$	Monospace	$\text{𝙰-𝚉 𝚊-𝚣 𝟶-𝟿}$
Bold Fractur	$\text{𝕬-𝖅}\text{𝖆-𝖟}$

Unicode

The letters listed above will render properly in any KaTeX rendering mode.
In addition, Armenian, Brahmic, Georgian, Chinese, Japanese, and Korean glyphs are always accepted in text mode. However, these glyphs will be rendered from system fonts (not KaTeX-supplied fonts) so their typography may clash.
You can provide rules for CSS classes .latin_fallback, .cyrillic_fallback, .brahmic_fallback, .georgian_fallback, .cjk_fallback, and .hangul_fallback to provide fallback fonts for these languages.
Use of these glyphs may cause small vertical alignment issues: KaTeX has detailed metrics for listed symbols and most Latin, Greek, and Cyrillic letters, but other accepted glyphs are treated as if they are each as tall as the letter M in the current KaTeX font.
If the KaTeX rendering mode is set to strict: false or strict: "warn" (default), then KaTeX will accept all Unicode letters in both text and math mode.
All unrecognized characters will be treated as if they appeared in text mode, and are subject to the same issues of using system fonts and possibly using incorrect vertical alignment.
For Persian composite characters, a user-supplied plug-in is under development.
Any character can be written with the \char function and the Unicode code in hex. For example \char"263a will render as $\char"263a$.

Layout

Annotation


$\cancel{5}$	`\cancel{5}`	$\overbrace{a+b+c}^{\text{note}}$	`\overbrace{a+b+c}^{\text{note}}`
$\bcancel{5}$	`\bcancel{5}`	$\underbrace{a+b+c}_{\text{note}}$	`\underbrace{a+b+c}_{\text{note}}`
$\xcancel{ABC}$	`\xcancel{ABC}`	$\not =$	`\not =`
$\sout{abc}$	`\sout{abc}`	$\boxed{\pi=\frac c d}$	`\boxed{\pi=\frac c d}`
$a_{\angl n}$	`$a_{\angl n}`	$a_\angln$	`a_\angln`
$\phase{-78^\circ}$	`\phase{-78^\circ}`


$$\tag{hi} x+y^{2x}$$


$$\tag*{hi} x+y^{2x}$$

Line Breaks

KaTeX 0.10.0+ will insert automatic line breaks in inline math after relations or binary operators such as “=” or “+”. These can be suppressed by \nobreak or by placing math inside a pair of braces, as in {F=ma}. \allowbreak will allow automatic line breaks at locations other than relations or operators.
Hard line breaks are \\\\ and \newline.
In display math, KaTeX does not insert automatic line breaks. It ignores display math hard line breaks when rendering option strict: true.

Vertical Layout


$x_n$	`x_n`	$\stackrel{!}{=}$	`\stackrel{!}{=}`	$a \atop b$	`a \atop b`
$e^x$	`e^x`	$\overset{!}{=}$	`\overset{!}{=}`	$a\raisebox{0.25em}{$b$}c$	`a\raisebox{0.25em}{$b$}c`
$_u^o$	`_u^o`	$\underset{!}{=}$	`\underset{!}{=}`	$a+\left(\vcenter{\frac{\frac a b}c}\right)$	`a+\left(\vcenter{\hbox{$\frac{\frac a b}c$}}\right)`
				$$\sum_{\substack{0<i<m\\0<j<n}}$$	`\sum_{\substack{0<i<m\\\\0<j<n}}`

\raisebox and \hbox put their argument into text mode. To raise math, nest $...$ delimiters inside the argument as shown above.
\vcenter can be written without an \hbox if the strict rendering option is false. In that case, omit the nested $...$ delimiters.

Overlap and Spacing

${=}\mathllap{/\,}$	`{=}\mathllap{/\,}`	$\left(x^{\smash{2}}\right)$	`\left(x^{\smash{2}}\right)`
$\mathrlap{\,/}{=}$	`\mathrlap{\,/}{=}`	$\sqrt{\smash[b]{y}}$	`\sqrt{\smash[b]{y}}`
$\displaystyle\sum_{\mathclap{1\le i\le j\le n}} x_{ij}$	`\sum_{\mathclap{1\le i\le j\le n}} x_{ij}`

KaTeX also supports \llap, \rlap, and \clap, but they will take only text, not math, as arguments.

Spacing

Function	Produces	Function	Produces
`\,`	³∕₁₈ em space	`\kern{distance}`	space, width = distance
`\thinspace`	³∕₁₈ em space	`\mkern{distance}`	space, width = distance
`\>`	⁴∕₁₈ em space	`\mskip{distance}`	space, width = distance
`\:`	⁴∕₁₈ em space	`\hskip{distance}`	space, width = distance
`\medspace`	⁴∕₁₈ em space	`\hspace{distance}`	space, width = distance
`\;`	⁵∕₁₈ em space	`\hspace*{distance}`	space, width = distance
`\thickspace`	⁵∕₁₈ em space	`\phantom{content}`	space the width and height of content
`\enspace`	½ em space	`\hphantom{content}`	space the width of content
`\quad`	1 em space	`\vphantom{content}`	a strut the height of content
`\qquad`	2 em space	`\!`	– ³∕₁₈ em space
`~`	non-breaking space	`\negthinspace`	– ³∕₁₈ em space
`\<space>`	space	`\negmedspace`	– ⁴∕₁₈ em space
`\nobreakspace`	non-breaking space	`\negthickspace`	– ⁵∕₁₈ em space
`\space`	space	`\mathstrut`	`\vphantom{(}`

Notes

distance will accept any of the KaTeX units.
\kern, \mkern, \mskip, and \hspace accept unbraced distances, as in: \kern1em.
\mkern and \mskip will not work in text mode and both will write a console warning for any unit except mu.

Logic and Set Theory

$\gdef\VERT{|}$


$\forall$ `\forall`	$\complement$ `\complement`	$\therefore$ `\therefore`	$\emptyset$ `\emptyset`
$\exists$ `\exists`	$\subset$ `\subset`	$\because$ `\because`	$\empty$ `\empty`
$\exist$ `\exist`	$\supset$ `\supset`	$\mapsto$ `\mapsto`	$\varnothing$ `\varnothing`
$\nexists$ `\nexists`	$\mid$ `\mid`	$\to$ `\to`	$\implies$ `\implies`
$\in$ `\in`	$\land$ `\land`	$\gets$ `\gets`	$\impliedby$ `\impliedby`
$\isin$ `\isin`	$\lor$ `\lor`	$\leftrightarrow$ `\leftrightarrow`	$\iff$ `\iff`
$\notin$ `\notin`	$\ni$ `\ni`	$\notni$ `\notni`	$\neg$ `\neg` or `\lnot`
	$\Set{ x \VERT x<\frac 1 2 }$ `\Set{ x \| x<\frac 1 2 }`	$\set{x\VERT x<5}$ `\set{x\|x<5}`

Direct Input: $∀ ∴ ∁ ∵ ∃ ∣ ∈ ∉ ∋ ⊂ ⊃ ∧ ∨ ↦ → ← ↔ ¬$ ℂ ℍ ℕ ℙ ℚ ℝ

Macros


$\def\foo{x^2} \foo + \foo$	`\def\foo{x^2} \foo + \foo`
$\gdef\foo#1{#1^2} \foo{y} + \foo{y}$	`\gdef\foo#1{#1^2} \foo{y} + \foo{y}`
	`\edef\macroname#1#2…{definition to be expanded}`
	`\xdef\macroname#1#2…{definition to be expanded}`
	`\let\foo=\bar`
	`\futurelet\foo\bar x`
	`\global\def\macroname#1#2…{definition}`
	`\newcommand\macroname[numargs]{definition}`
	`\renewcommand\macroname[numargs]{definition}`
	`\providecommand\macroname[numargs]{definition}`

Macros can also be defined in the KaTeX rendering options.
Macros accept up to nine arguments: #1, #2, etc.
Macros defined by \gdef, \xdef, \global\def, \global\edef, \global\let, and \global\futurelet will persist between math expressions. (Exception: macro persistence may be disabled. There are legitimate security reasons for that.)
KaTeX has no \par, so all macros are long by default and \long will be ignored.
Available functions include: \char \mathchoice \TextOrMath \@ifstar \@ifnextchar \@firstoftwo \@secondoftwo \relax \expandafter \noexpand
@ is a valid character for commands, as if \makeatletter were in effect.

Operators

Big Operators


$\sum$ `\sum`	$\prod$ `\prod`	$\bigotimes$ `\bigotimes`	$\bigvee$ `\bigvee`
$\int$ `\int`	$\coprod$ `\coprod`	$\bigoplus$ `\bigoplus`	$\bigwedge$ `\bigwedge`
$\iint$ `\iint`	$\intop$ `\intop`	$\bigodot$ `\bigodot`	$\bigcap$ `\bigcap`
$\iiint$ `\iiint`	$\smallint$ `\smallint`	$\biguplus$ `\biguplus`	$\bigcup$ `\bigcup`
$\oint$ `\oint`	$\oiint$ `\oiint`	$\oiiint$ `\oiiint`	$\bigsqcup$ `\bigsqcup`

Direct Input: $∫ ∬ ∭ ∮ ∏ ∐ ∑ ⋀ ⋁ ⋂ ⋃ ⨀ ⨁ ⨂ ⨄ ⨆$ ∯ ∰

Binary Operators


$+$ `+`	$\cdot$ `\cdot`	$\gtrdot$ `\gtrdot`	$x \pmod a$ `x \pmod a`
$-$ `-`	$\cdotp$ `\cdotp`	$\intercal$ `\intercal`	$x \pod a$ `x \pod a`
$/$ `/`	$\centerdot$ `\centerdot`	$\land$ `\land`	$\rhd$ `\rhd`
$$ ``	$\circ$ `\circ`	$\leftthreetimes$ `\leftthreetimes`	$\rightthreetimes$ `\rightthreetimes`
$\amalg$ `\amalg`	$\circledast$ `\circledast`	$\ldotp$ `\ldotp`	$\rtimes$ `\rtimes`
$\And$ `\And`	$\circledcirc$ `\circledcirc`	$\lor$ `\lor`	$\setminus$ `\setminus`
$\ast$ `\ast`	$\circleddash$ `\circleddash`	$\lessdot$ `\lessdot`	$\smallsetminus$ `\smallsetminus`
$\barwedge$ `\barwedge`	$\Cup$ `\Cup`	$\lhd$ `\lhd`	$\sqcap$ `\sqcap`
$\bigcirc$ `\bigcirc`	$\cup$ `\cup`	$\ltimes$ `\ltimes`	$\sqcup$ `\sqcup`
$\bmod$ `\bmod`	$\curlyvee$ `\curlyvee`	$x \mod a$ `x\mod a`	$\times$ `\times`
$\boxdot$ `\boxdot`	$\curlywedge$ `\curlywedge`	$\mp$ `\mp`	$\unlhd$ `\unlhd`
$\boxminus$ `\boxminus`	$\div$ `\div`	$\odot$ `\odot`	$\unrhd$ `\unrhd`
$\boxplus$ `\boxplus`	$\divideontimes$ `\divideontimes`	$\ominus$ `\ominus`	$\uplus$ `\uplus`
$\boxtimes$ `\boxtimes`	$\dotplus$ `\dotplus`	$\oplus$ `\oplus`	$\vee$ `\vee`
$\bullet$ `\bullet`	$\doublebarwedge$ `\doublebarwedge`	$\otimes$ `\otimes`	$\veebar$ `\veebar`
$\Cap$ `\Cap`	$\doublecap$ `\doublecap`	$\oslash$ `\oslash`	$\wedge$ `\wedge`
$\cap$ `\cap`	$\doublecup$ `\doublecup`	$\pm$ `\pm` or `\plusmn`	$\wr$ `\wr`

Direct Input: $+ - / * ⋅ ∘ ∙ ± × ÷ ∓ ∔ ∧ ∨ ∩ ∪ ≀ ⊎ ⊓ ⊔ ⊕ ⊖ ⊗ ⊘ ⊙ ⊚ ⊛ ⊝ ◯ ∖ {}$

Fractions and Binomials


$\frac{a}{b}$ `\frac{a}{b}`	$\tfrac{a}{b}$ `\tfrac{a}{b}`	$\genfrac ( ] {2pt}{1}a{a+1}$ `\genfrac ( ] {2pt}{1}a{a+1}`
${a \over b}$ `{a \over b}`	$\dfrac{a}{b}$ `\dfrac{a}{b}`	${a \above{2pt} b+1}$ `{a \above{2pt} b+1}`
$a/b$ `a/b`		$\cfrac{a}{1 + \cfrac{1}{b}}$ `\cfrac{a}{1 + \cfrac{1}{b}}`


$\binom{n}{k}$ `\binom{n}{k}`	$\dbinom{n}{k}$ `\dbinom{n}{k}`	${n\brace k}$ `{n\brace k}`
${n \choose k}$ `{n \choose k}`	$\tbinom{n}{k}$ `\tbinom{n}{k}`	${n\brack k}$ `{n\brack k}`

Math Operators


$\arcsin$ `\arcsin`	$\cosec$ `\cosec`	$\deg$ `\deg`	$\sec$ `\sec`
$\arccos$ `\arccos`	$\cosh$ `\cosh`	$\dim$ `\dim`	$\sin$ `\sin`
$\arctan$ `\arctan`	$\cot$ `\cot`	$\exp$ `\exp`	$\sinh$ `\sinh`
$\arctg$ `\arctg`	$\cotg$ `\cotg`	$\hom$ `\hom`	$\sh$ `\sh`
$\arcctg$ `\arcctg`	$\coth$ `\coth`	$\ker$ `\ker`	$\tan$ `\tan`
$\arg$ `\arg`	$\csc$ `\csc`	$\lg$ `\lg`	$\tanh$ `\tanh`
$\ch$ `\ch`	$\ctg$ `\ctg`	$\ln$ `\ln`	$\tg$ `\tg`
$\cos$ `\cos`	$\cth$ `\cth`	$\log$ `\log`	$\th$ `\th`
$\operatorname{f}$ `\operatorname{f}`
$\argmax$ `\argmax`	$\injlim$ `\injlim`	$\min$ `\min`	$\varinjlim$ `\varinjlim`
$\argmin$ `\argmin`	$\lim$ `\lim`	$\plim$ `\plim`	$\varliminf$ `\varliminf`
$\det$ `\det`	$\liminf$ `\liminf`	$\Pr$ `\Pr`	$\varlimsup$ `\varlimsup`
$\gcd$ `\gcd`	$\limsup$ `\limsup`	$\projlim$ `\projlim`	$\varprojlim$ `\varprojlim`
$\inf$ `\inf`	$\max$ `\max`	$\sup$ `\sup`
$\operatorname{f}$ `\operatorname{f}`	$\operatornamewithlimits{f}$ `\operatornamewithlimits{f}`

Functions in the bottom six rows of this table can take \limits.

`\sqrt`

$\sqrt{x}$ \sqrt{x}
$\sqrt[3]{x}$ \sqrt[3]{x}

Relations

$\stackrel{!}{=}$ \stackrel{!}{=}


$=$ `=`	$\doteqdot$ `\doteqdot`	$\lessapprox$ `\lessapprox`	$\smile$ `\smile`
$<$ `<`	$\eqcirc$ `\eqcirc`	$\lesseqgtr$ `\lesseqgtr`	$\sqsubset$ `\sqsubset`
$>$ `>`	$\eqcolon$ `\eqcolon` or `\minuscolon`	$\lesseqqgtr$ `\lesseqqgtr`	$\sqsubseteq$ `\sqsubseteq`
$:$ `:`	$\Eqcolon$ `\Eqcolon` or `\minuscoloncolon`	$\lessgtr$ `\lessgtr`	$\sqsupset$ `\sqsupset`
$\approx$ `\approx`	$\eqqcolon$ `\eqqcolon` or `\equalscolon`	$\lesssim$ `\lesssim`	$\sqsupseteq$ `\sqsupseteq`
$\approxcolon$ `\approxcolon`	$\Eqqcolon$ `\Eqqcolon` or `\equalscoloncolon`	$\ll$ `\ll`	$\Subset$ `\Subset`
$\approxcoloncolon$ `\approxcoloncolon`	$\eqsim$ `\eqsim`	$\lll$ `\lll`	$\subset$ `\subset` or `\sub`
$\approxeq$ `\approxeq`	$\eqslantgtr$ `\eqslantgtr`	$\llless$ `\llless`	$\subseteq$ `\subseteq` or `\sube`
$\asymp$ `\asymp`	$\eqslantless$ `\eqslantless`	$\lt$ `\lt`	$\subseteqq$ `\subseteqq`
$\backepsilon$ `\backepsilon`	$\equiv$ `\equiv`	$\mid$ `\mid`	$\succ$ `\succ`
$\backsim$ `\backsim`	$\fallingdotseq$ `\fallingdotseq`	$\models$ `\models`	$\succapprox$ `\succapprox`
$\backsimeq$ `\backsimeq`	$\frown$ `\frown`	$\multimap$ `\multimap`	$\succcurlyeq$ `\succcurlyeq`
$\between$ `\between`	$\ge$ `\ge`	$\origof$ `\origof`	$\succeq$ `\succeq`
$\bowtie$ `\bowtie`	$\geq$ `\geq`	$\owns$ `\owns`	$\succsim$ `\succsim`
$\bumpeq$ `\bumpeq`	$\geqq$ `\geqq`	$\parallel$ `\parallel`	$\Supset$ `\Supset`
$\Bumpeq$ `\Bumpeq`	$\geqslant$ `\geqslant`	$\perp$ `\perp`	$\supset$ `\supset`
$\circeq$ `\circeq`	$\gg$ `\gg`	$\pitchfork$ `\pitchfork`	$\supseteq$ `\supseteq` or `\supe`
$\colonapprox$ `\colonapprox`	$\ggg$ `\ggg`	$\prec$ `\prec`	$\supseteqq$ `\supseteqq`
$\Colonapprox$ `\Colonapprox` or `\coloncolonapprox`	$\gggtr$ `\gggtr`	$\precapprox$ `\precapprox`	$\thickapprox$ `\thickapprox`
$\coloneq$ `\coloneq` or `\colonminus`	$\gt$ `\gt`	$\preccurlyeq$ `\preccurlyeq`	$\thicksim$ `\thicksim`
$\Coloneq$ `\Coloneq` or `\coloncolonminus`	$\gtrapprox$ `\gtrapprox`	$\preceq$ `\preceq`	$\trianglelefteq$ `\trianglelefteq`
$\coloneqq$ `\coloneqq` or `\colonequals`	$\gtreqless$ `\gtreqless`	$\precsim$ `\precsim`	$\triangleq$ `\triangleq`
$\Coloneqq$ `\Coloneqq` or `\coloncolonequals`	$\gtreqqless$ `\gtreqqless`	$\propto$ `\propto`	$\trianglerighteq$ `\trianglerighteq`
$\colonsim$ `\colonsim`	$\gtrless$ `\gtrless`	$\risingdotseq$ `\risingdotseq`	$\varpropto$ `\varpropto`
$\Colonsim$ `\Colonsim` or `\coloncolonsim`	$\gtrsim$ `\gtrsim`	$\shortmid$ `\shortmid`	$\vartriangle$ `\vartriangle`
$\cong$ `\cong`	$\imageof$ `\imageof`	$\shortparallel$ `\shortparallel`	$\vartriangleleft$ `\vartriangleleft`
$\curlyeqprec$ `\curlyeqprec`	$\in$ `\in` or `\isin`	$\sim$ `\sim`	$\vartriangleright$ `\vartriangleright`
$\curlyeqsucc$ `\curlyeqsucc`	$\Join$ `\Join`	$\simcolon$ `\simcolon`	$\vcentcolon$ `\vcentcolon` or `\ratio`
$\dashv$ `\dashv`	$\le$ `\le`	$\simcoloncolon$ `\simcoloncolon`	$\vdash$ `\vdash`
$\dblcolon$ `\dblcolon` or `\coloncolon`	$\leq$ `\leq`	$\simeq$ `\simeq`	$\vDash$ `\vDash`
$\doteq$ `\doteq`	$\leqq$ `\leqq`	$\smallfrown$ `\smallfrown`	$\Vdash$ `\Vdash`
$\Doteq$ `\Doteq`	$\leqslant$ `\leqslant`	$\smallsmile$ `\smallsmile`	$\Vvdash$ `\Vvdash`

Direct Input: $= < > : ∈ ∋ ∝ ∼ ∽ ≂ ≃ ≅ ≈ ≊ ≍ ≎ ≏ ≐ ≑ ≒ ≓ ≖ ≗ ≜ ≡ ≤ ≥ ≦ ≧ ≫ ≬ ≳ ≷ ≺ ≻ ≼ ≽ ≾ ≿ ⊂ ⊃ ⊆ ⊇ ⊏ ⊐ ⊑ ⊒ ⊢ ⊣ ⊩ ⊪ ⊸ ⋈ ⋍ ⋐ ⋑ ⋔ ⋙ ⋛ ⋞ ⋟ ⌢ ⌣ ⩾ ⪆ ⪌ ⪕ ⪖ ⪯ ⪰ ⪷ ⪸ ⫅ ⫆ ≲ ⩽ ⪅ ≶ ⋚ ⪋ ⟂ ⊨ $ ≔ ≕ ⩴

Negated Relations

$\not =$ \not =


$\gnapprox$ `\gnapprox`	$\ngeqslant$ `\ngeqslant`	$\nsubseteq$ `\nsubseteq`	$\precneqq$ `\precneqq`
$\gneq$ `\gneq`	$\ngtr$ `\ngtr`	$\nsubseteqq$ `\nsubseteqq`	$\precnsim$ `\precnsim`
$\gneqq$ `\gneqq`	$\nleq$ `\nleq`	$\nsucc$ `\nsucc`	$\subsetneq$ `\subsetneq`
$\gnsim$ `\gnsim`	$\nleqq$ `\nleqq`	$\nsucceq$ `\nsucceq`	$\subsetneqq$ `\subsetneqq`
$\gvertneqq$ `\gvertneqq`	$\nleqslant$ `\nleqslant`	$\nsupseteq$ `\nsupseteq`	$\succnapprox$ `\succnapprox`
$\lnapprox$ `\lnapprox`	$\nless$ `\nless`	$\nsupseteqq$ `\nsupseteqq`	$\succneqq$ `\succneqq`
$\lneq$ `\lneq`	$\nmid$ `\nmid`	$\ntriangleleft$ `\ntriangleleft`	$\succnsim$ `\succnsim`
$\lneqq$ `\lneqq`	$\notin$ `\notin`	$\ntrianglelefteq$ `\ntrianglelefteq`	$\supsetneq$ `\supsetneq`
$\lnsim$ `\lnsim`	$\notni$ `\notni`	$\ntriangleright$ `\ntriangleright`	$\supsetneqq$ `\supsetneqq`
$\lvertneqq$ `\lvertneqq`	$\nparallel$ `\nparallel`	$\ntrianglerighteq$ `\ntrianglerighteq`	$\varsubsetneq$ `\varsubsetneq`
$\ncong$ `\ncong`	$\nprec$ `\nprec`	$\nvdash$ `\nvdash`	$\varsubsetneqq$ `\varsubsetneqq`
$\ne$ `\ne`	$\npreceq$ `\npreceq`	$\nvDash$ `\nvDash`	$\varsupsetneq$ `\varsupsetneq`
$\neq$ `\neq`	$\nshortmid$ `\nshortmid`	$\nVDash$ `\nVDash`	$\varsupsetneqq$ `\varsupsetneqq`
$\ngeq$ `\ngeq`	$\nshortparallel$ `\nshortparallel`	$\nVdash$ `\nVdash`
$\ngeqq$ `\ngeqq`	$\nsim$ `\nsim`	$\precnapprox$ `\precnapprox`

Direct Input: $∉ ∌ ∤ ∦ ≁ ≆ ≠ ≨ ≩ ≮ ≯ ≰ ≱ ⊀ ⊁ ⊈ ⊉ ⊊ ⊋ ⊬ ⊭ ⊮ ⊯ ⋠ ⋡ ⋦ ⋧ ⋨ ⋩ ⋬ ⋭ ⪇ ⪈ ⪉ ⪊ ⪵ ⪶ ⪹ ⪺ ⫋ ⫌$

Arrows


$\circlearrowleft$ `\circlearrowleft`	$\leftharpoonup$ `\leftharpoonup`	$\rArr$ `\rArr`
$\circlearrowright$ `\circlearrowright`	$\leftleftarrows$ `\leftleftarrows`	$\rarr$ `\rarr`
$\curvearrowleft$ `\curvearrowleft`	$\leftrightarrow$ `\leftrightarrow`	$\restriction$ `\restriction`
$\curvearrowright$ `\curvearrowright`	$\Leftrightarrow$ `\Leftrightarrow`	$\rightarrow$ `\rightarrow`
$\Darr$ `\Darr`	$\leftrightarrows$ `\leftrightarrows`	$\Rightarrow$ `\Rightarrow`
$\dArr$ `\dArr`	$\leftrightharpoons$ `\leftrightharpoons`	$\rightarrowtail$ `\rightarrowtail`
$\darr$ `\darr`	$\leftrightsquigarrow$ `\leftrightsquigarrow`	$\rightharpoondown$ `\rightharpoondown`
$\dashleftarrow$ `\dashleftarrow`	$\Lleftarrow$ `\Lleftarrow`	$\rightharpoonup$ `\rightharpoonup`
$\dashrightarrow$ `\dashrightarrow`	$\longleftarrow$ `\longleftarrow`	$\rightleftarrows$ `\rightleftarrows`
$\downarrow$ `\downarrow`	$\Longleftarrow$ `\Longleftarrow`	$\rightleftharpoons$ `\rightleftharpoons`
$\Downarrow$ `\Downarrow`	$\longleftrightarrow$ `\longleftrightarrow`	$\rightrightarrows$ `\rightrightarrows`
$\downdownarrows$ `\downdownarrows`	$\Longleftrightarrow$ `\Longleftrightarrow`	$\rightsquigarrow$ `\rightsquigarrow`
$\downharpoonleft$ `\downharpoonleft`	$\longmapsto$ `\longmapsto`	$\Rrightarrow$ `\Rrightarrow`
$\downharpoonright$ `\downharpoonright`	$\longrightarrow$ `\longrightarrow`	$\Rsh$ `\Rsh`
$\gets$ `\gets`	$\Longrightarrow$ `\Longrightarrow`	$\searrow$ `\searrow`
$\Harr$ `\Harr`	$\looparrowleft$ `\looparrowleft`	$\swarrow$ `\swarrow`
$\hArr$ `\hArr`	$\looparrowright$ `\looparrowright`	$\to$ `\to`
$\harr$ `\harr`	$\Lrarr$ `\Lrarr`	$\twoheadleftarrow$ `\twoheadleftarrow`
$\hookleftarrow$ `\hookleftarrow`	$\lrArr$ `\lrArr`	$\twoheadrightarrow$ `\twoheadrightarrow`
$\hookrightarrow$ `\hookrightarrow`	$\lrarr$ `\lrarr`	$\Uarr$ `\Uarr`
$\iff$ `\iff`	$\Lsh$ `\Lsh`	$\uArr$ `\uArr`
$\impliedby$ `\impliedby`	$\mapsto$ `\mapsto`	$\uarr$ `\uarr`
$\implies$ `\implies`	$\nearrow$ `\nearrow`	$\uparrow$ `\uparrow`
$\Larr$ `\Larr`	$\nleftarrow$ `\nleftarrow`	$\Uparrow$ `\Uparrow`
$\lArr$ `\lArr`	$\nLeftarrow$ `\nLeftarrow`	$\updownarrow$ `\updownarrow`
$\larr$ `\larr`	$\nleftrightarrow$ `\nleftrightarrow`	$\Updownarrow$ `\Updownarrow`
$\leadsto$ `\leadsto`	$\nLeftrightarrow$ `\nLeftrightarrow`	$\upharpoonleft$ `\upharpoonleft`
$\leftarrow$ `\leftarrow`	$\nrightarrow$ `\nrightarrow`	$\upharpoonright$ `\upharpoonright`
$\Leftarrow$ `\Leftarrow`	$\nRightarrow$ `\nRightarrow`	$\upuparrows$ `\upuparrows`
$\leftarrowtail$ `\leftarrowtail`	$\nwarrow$ `\nwarrow`
$\leftharpoondown$ `\leftharpoondown`	$\Rarr$ `\Rarr`

Direct Input: $← ↑ → ↓ ↔ ↕ ↖ ↗ ↘ ↙ ↚ ↛ ↞ ↠ ↢ ↣ ↦ ↩ ↪ ↫ ↬ ↭ ↮ ↰ ↱↶ ↷ ↺ ↻ ↼ ↽ ↾ ↾ ↿ ⇀ ⇁ ⇂ ⇃ ⇄ ⇆ ⇇ ⇈ ⇉ ⇊ ⇋ ⇌⇍ ⇎ ⇏ ⇐ ⇑ ⇒ ⇓ ⇔ ⇕ ⇚ ⇛ ⇝ ⇠ ⇢ ⟵ ⟶ ⟷ ⟸ ⟹ ⟺ ⟼$ ↽

Extensible Arrows


$\xleftarrow{abc}$ `\xleftarrow{abc}`	$\xrightarrow[under]{over}$ `\xrightarrow[under]{over}`
$\xLeftarrow{abc}$ `\xLeftarrow{abc}`	$\xRightarrow{abc}$ `\xRightarrow{abc}`
$\xleftrightarrow{abc}$ `\xleftrightarrow{abc}`	$\xLeftrightarrow{abc}$ `\xLeftrightarrow{abc}`
$\xhookleftarrow{abc}$ `\xhookleftarrow{abc}`	$\xhookrightarrow{abc}$ `\xhookrightarrow{abc}`
$\xtwoheadleftarrow{abc}$ `\xtwoheadleftarrow{abc}`	$\xtwoheadrightarrow{abc}$ `\xtwoheadrightarrow{abc}`
$\xleftharpoonup{abc}$ `\xleftharpoonup{abc}`	$\xrightharpoonup{abc}$ `\xrightharpoonup{abc}`
$\xleftharpoondown{abc}$ `\xleftharpoondown{abc}`	$\xrightharpoondown{abc}$ `\xrightharpoondown{abc}`
$\xleftrightharpoons{abc}$ `\xleftrightharpoons{abc}`	$\xrightleftharpoons{abc}$ `\xrightleftharpoons{abc}`
$\xtofrom{abc}$ `\xtofrom{abc}`	$\xmapsto{abc}$ `\xmapsto{abc}`
$\xlongequal{abc}$ `\xlongequal{abc}`

Extensible arrows all can take an optional argument in the same manner as \xrightarrow[under]{over}.

Special Notation

Bra-ket Notation


$\bra{\phi}$ `\bra{\phi}`	$\ket{\psi}$ `\ket{\psi}`	$\braket{\phi\VERT\psi}$ `\braket{\phi\|\psi}`
$\Bra{\phi}$ `\Bra{\phi}`	$\Ket{\psi}$ `\Ket{\psi}`	$\Braket{ ϕ \VERT \frac{∂^2}{∂ t^2} \VERT ψ }$ `\Braket{ ϕ \| \frac{∂^2}{∂ t^2} \| ψ }`

Style, Color, Size, and Font

Class Assignment

\mathbin \mathclose \mathinner \mathop \mathopen \mathord \mathpunct \mathrel

Color

$\color{red} F=ma$ \color{red} F=ma
Note that \color acts like a switch. Other color functions expect the content to be a function argument:
$\textcolor{red}{F=ma}$ \textcolor{red}{F=ma}
$\textcolor{#228B22}{F=ma}$ \textcolor{#228B22}{F=ma}
$\colorbox{blue}{$F=ma$}$ \colorbox{aqua}{$F=ma$}
$\fcolorbox{red}{blue}{$F=ma$}$ \fcolorbox{red}{aqua}{$F=ma$}
Note that, as in LaTeX, \colorbox & \fcolorbox renders its third argument as text, so you may want to switch back to math mode with $ as in the examples above.
For color definition, KaTeX color functions will accept the standard HTML predefined color names. They will also accept an RGB argument in CSS hexadecimal style. The “#” is optional before a six-digit specification.

Font


$\mathrm{Ab0}$ `\mathrm{Ab0}`	$\mathbf{Ab0}$ `\mathbf{Ab0}`	$\mathit{Ab0}$ `\mathit{Ab0}`
$\mathnormal{Ab0}$ `\mathnormal{Ab0}`	$\textbf{Ab0}$ `\textbf{Ab0}`	$\textit{Ab0}$ `\textit{Ab0}`
$\textrm{Ab0}$ `\textrm{Ab0}`	$\bf Ab0$ `\bf Ab0`	$\it Ab0$ `\it Ab0`
$\rm Ab0$ `\rm Ab0`	$\bold{Ab0}$ `\bold{Ab0}`	$\textup{Ab0}$ `\textup{Ab0}`
$\textnormal{Ab0}$ `\textnormal{Ab0}`	$\boldsymbol{Ab0}$ `\boldsymbol{Ab}`	$\Bbb{AB}$ `\Bbb{AB}`
$\text{Ab0}$ `\text{Ab0}`	$\bm{Ab0}$ `\bm{Ab0}`	$\mathbb{AB}$ `\mathbb{AB}`
$\mathsf{Ab0}$ `\mathsf{Ab0}`	$\textmd{Ab0}$ `\textmd{Ab0}`	$\frak{Ab0}$ `\frak{Ab0}`
$\textsf{Ab0}$ `\textsf{Ab0}`	$\mathtt{Ab0}$ `\mathtt{Ab0}`	$\mathfrak{Ab0}$ `\mathfrak{Ab0}`
$\sf Ab0$ `\sf Ab0`	$\texttt{Ab0}$ `\texttt{Ab0}`	$\mathcal{AB0}$ `\mathcal{AB0}`
	$\tt Ab0$ `\tt Ab0`	$\cal AB0$ `\cal AB0`
		$\mathscr{AB}$ `\mathscr{AB}`

One can stack font family, font weight, and font shape by using the \textXX versions of the font functions. So \textsf{\textbf{H}} will produce $\textsf{\textbf{H}}$. The other versions do not stack, e.g., \mathsf{\mathbf{H}} will produce $\mathsf{\mathbf{H}}$.
In cases where KaTeX fonts do not have a bold glyph, \pmb can simulate one. For example, \pmb{\mu} renders as : $\pmb{\mu}$

Size


$\Huge AB$ `\Huge AB`	$\normalsize AB$ `\normalsize AB`
$\huge AB$ `\huge AB`	$\small AB$ `\small AB`
$\LARGE AB$ `\LARGE AB`	$\footnotesize AB$ `\footnotesize AB`
$\Large AB$ `\Large AB`	$\scriptsize AB$ `\scriptsize AB`
$\large AB$ `\large AB`	$\tiny AB$ `\tiny AB`

Style


$\displaystyle\sum_{i=1}^n$ `\displaystyle\sum_{i=1}^n`
$\textstyle\sum_{i=1}^n$ `\textstyle\sum_{i=1}^n`
$\scriptstyle x$ `\scriptstyle x` (The size of a first sub/superscript)
$\scriptscriptstyle x$ `\scriptscriptstyle x` (The size of subsequent sub/superscripts)
$\lim\limits_x$ `\lim\limits_x`
$\lim\nolimits_x$ `\lim\nolimits_x`
$\verb!x^2!$ `\verb!x^2!`

\text{...} will accept nested $...$ fragments and render them in math mode.

Symbols and Punctuation


`% comment`	$\dots$ `\dots`	$\KaTeX$ `\KaTeX`
$%$ `\%`	$\cdots$ `\cdots`	$\LaTeX$ `\LaTeX`
$#$ `\#`	$\ddots$ `\ddots`	$\TeX$ `\TeX`
$&$ `\&`	$\ldots$ `\ldots`	$\nabla$ `\nabla`
$_$ `\_`	$\vdots$ `\vdots`	$\infty$ `\infty`
$\text{\textunderscore}$ `\text{\textunderscore}`	$\dotsb$ `\dotsb`	$\infin$ `\infin`
$\text{–}$ `\text{--}`	$\dotsc$ `\dotsc`	$\checkmark$ `\checkmark`
$\text{\textendash}$ `\text{\textendash}`	$\dotsi$ `\dotsi`	$\dag$ `\dag`
$\text{—}$ `\text{---}`	$\dotsm$ `\dotsm`	$\dagger$ `\dagger`
$\text{\textemdash}$ `\text{\textemdash}`	$\dotso$ `\dotso`	$\text{\textdagger}$ `\text{\textdagger}`
$\text{\textasciitilde}$ `\text{\textasciitilde}`	$\sdot$ `\sdot`	$\ddag$ `\ddag`
$\text{\textasciicircum}$ `\text{\textasciicircum}`	$\mathellipsis$ `\mathellipsis`	$\ddagger$ `\ddagger`
$`$ <code>`	$\text{\textellipsis}$ `\text{\textellipsis}`	$\text{\textdaggerdbl}$ `\text{\textdaggerdbl}`
$\text{\textquoteleft}$ `text{\textquoteleft}`	$\Box$ `\Box`	$\Dagger$ `\Dagger`
$\lq$ `\lq`	$\square$ `\square`	$\angle$ `\angle`
$\text{\textquoteright}$ `\text{\textquoteright}`	$\blacksquare$ `\blacksquare`	$\measuredangle$ `\measuredangle`
$\rq$ `\rq`	$\triangle$ `\triangle`	$\sphericalangle$ `\sphericalangle`
$\text{\textquotedblleft}$ `\text{\textquotedblleft}`	$\triangledown$ `\triangledown`	$\top$ `\top`
$"$ `"`	$\triangleleft$ `\triangleleft`	$\bot$ `\bot`
$\text{\textquotedblright}$ `\text{\textquotedblright}`	$\triangleright$ `\triangleright`	$$$ `\$`
$\colon$ `\colon`	$\bigtriangledown$ `\bigtriangledown`	$\text{\textdollar}$ `\text{\textdollar}`
$\backprime$ `\backprime`	$\bigtriangleup$ `\bigtriangleup`	$\pounds$ `\pounds`
$\prime$ `\prime`	$\blacktriangle$ `\blacktriangle`	$\mathsterling$ `\mathsterling`
$\text{\textless}$ `\text{\textless}`	$\blacktriangledown$ `\blacktriangledown`	$\text{\textsterling}$ `\text{\textsterling}`
$\text{\textgreater}$ `\text{\textgreater}`	$\blacktriangleleft$ `\blacktriangleleft`	$\yen$ `\yen`
$\text{\textbar}$ `\text{\textbar}`	$\blacktriangleright$ `\blacktriangleright`	$\surd$ `\surd`
$\text{\textbardbl}$ `\text{\textbardbl}`	$\diamond$ `\diamond`	$\degree$ `\degree`
$\text{\textbraceleft}$ `\text{\textbraceleft}`	$\Diamond$ `\Diamond`	$\text{\textdegree}$ `\text{\textdegree}`
$\text{\textbraceright}$ `\text{\textbraceright}`	$\lozenge$ `\lozenge`	$\mho$ `\mho`
$\text{\textbackslash}$ `\text{\textbackslash}`	$\blacklozenge$ `\blacklozenge`	$\diagdown$ `\diagdown`
$\text{\P}$ `\text{\P}` or `\P`	$\star$ `\star`	$\diagup$ `\diagup`
$\text{\S}$ `\text{\S}` or `\S`	$\bigstar$ `\bigstar`	$\flat$ `\flat`
$\text{\sect}$ `\text{\sect}`	$\clubsuit$ `\clubsuit`	$\natural$ `\natural`
$\copyright$ `\copyright`	$\clubs$ `\clubs`	$\sharp$ `\sharp`
$\circledR$ `\circledR`	$\diamondsuit$ `\diamondsuit`	$\heartsuit$ `\heartsuit`
$\text{\textregistered}$ `\text{\textregistered}`	$\diamonds$ `\diamonds`	$\hearts$ `\hearts`
$\circledS$ `\circledS`	$\spadesuit$ `\spadesuit`	$\spades$ `\spades`
$\text{\textcircled a}$ `\text{\textcircled a}`	$\maltese$ `\maltese`	$\minuso$ `\minuso`

Direct Input: § ¶ $ £ ¥ ∇ ∞ · ∠ ∡ ∢ ♠ ♡ ♢ ♣ ♭ ♮ ♯ ✓ … ⋮ ⋯ ⋱ !$ ‼ ⦵