Supported Functions

special symbols

:- :- :- :- :- :-
KaTeX:\bra{\phi} \bra{\phi} KaTeX:\ket{\psi} \ket{\psi} KaTeX:\braket{\phi|\psi} \braket{\phi|\psi}
KaTeX:\Bra{\phi} \Bra{\phi} KaTeX:\Ket{\psi} \Ket{\psi} KaTeX:\Braket{ ϕ | \frac{∂^2}{∂ t^2} | ψ } \Braket{ ϕ | \frac{∂^2}{∂ t^2} | ψ }

Logic and Set Theory

:- :- :- :- :- :- :- :-
KaTeX:\forall \forall KaTeX:\complement \complement KaTeX:\therefore \therefore KaTeX:\emptyset \emptyset
KaTeX:\exists \exists KaTeX:\subset \subset KaTeX:\because \because KaTeX:\empty \empty
KaTeX:\exist \exist KaTeX:\supset \supset KaTeX:\mapsto \mapsto KaTeX:\varnothing \varnothing
KaTeX:\nexists \nexists KaTeX:\mid \mid KaTeX:\to \to KaTeX:\implies \implies
KaTeX:\in \in KaTeX:\land \land KaTeX:\gets \gets KaTeX:\impliedby \impliedby
KaTeX:\isin \isin KaTeX:\lor \lor KaTeX:\leftrightarrow \leftrightarrow KaTeX:\iff \iff

| KaTeX:\notin | \notin | KaTeX:\ni | \ni | KaTeX:\notni | \notni | KaTeX:\neg KaTeX:\lnot | \neg or \lnot |

:- :- :- :-
KaTeX:\Set{ x | x<\frac 1 2 } \Set{ x x<\frac 1 2 } KaTeX:\set{x|x<5}

standard function name

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KaTeX:\arccos \arccos KaTeX:\arcsin \arcsin KaTeX:\arcsin \arcsin KaTeX:\arg \arg
KaTeX:\cos \cos KaTeX:\cosh \cosh KaTeX:\cot \cot KaTeX:\coth \coth
KaTeX:\csc \csc KaTeX:\deg \deg KaTeX:\det \det KaTeX:\dim \dim
KaTeX:\exp \exp KaTeX:\gcd \gcd KaTeX:\hom \hom KaTeX:\inf \inf
KaTeX:\ker \ker KaTeX:\lg \lg KaTeX:\lim \lim KaTeX:\liminf \liminf
KaTeX:\limsup \limsup KaTeX:\ln \ln KaTeX:\log \log KaTeX:\max \max
KaTeX:\min \min KaTeX:\Pr \Pr KaTeX:\sec \sec KaTeX:\sin \sin
KaTeX:\sinh \sinh KaTeX:\sup \sup KaTeX:\tan \tan KaTeX:\tanh \tanh

#Function names should be in roman font, not italics, for example:

:- :- :- :-
Correct: \tan(at-n\pi) KaTeX:\rightarrow KaTeX:\tan(at-n\pi)
Incorrect: tan(at-n\pi) katex:\rightarrow KaTeX:tan(at-n\pi)

Variable Size Symbols

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KaTeX:\sum \sum KaTeX:\int \int KaTeX:\biguplus \biguplus KaTeX:\bigoplus \bigoplus KaTeX:\bigvee \bigvee
KaTeX:\prod \prod KaTeX:\oint \oint KaTeX:\bigcap \bigcap KaTeX:\bigotimes \bigotimes KaTeX:\bigwedge \bigwedge
KaTeX:\coprod \coprod KaTeX:\iint \iint KaTeX:\bigcup \bigcup KaTeX:\bigodot \bigodot KaTeX:\bigodot \bigodot

Delimiters

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KaTeX:() () KaTeX:\lparen \rparen \lparen \rparen KaTeX:⌈ ⌉ ⌈ ⌉ KaTeX:\lceil \rceil \lceil \rceil KaTeX:\uparrow \uparrow
KaTeX:[] [] KaTeX:\lbrack \rbrack \lbrack \rbrack KaTeX:⌊ ⌋ ⌊ ⌋ KaTeX:\lfloor \rfloor \lfloor \rfloor KaTeX:\downarrow \downarrow
KaTeX:\{ \} {} KaTeX:\lbrace \rbrace \lbrace \rbrace KaTeX:⎰⎱ ⎰⎱ KaTeX:\lmoustache \rmoustache \lmoustache \rmoustache KaTeX:\updownarrow \updownarrow
KaTeX:⟨ ⟩ ⟨⟩ KaTeX:\langle \rangle \langle \rangle KaTeX:⟮ ⟯ ⟮ ⟯ KaTeX:\lgroup \rgroup \lgroup \rgroup KaTeX:\Uparrow \Uparrow
KaTeX:∣ | KaTeX:\vert \vert KaTeX:┌ ┐ ┌ ┐ KaTeX:\ulcorner \urcorner \ulcorner \urcorner KaTeX:\Downarrow \Downarrow
KaTeX:| (MD syntax conflict) | KaTeX:\Vert \Vert KaTeX:└ ┘ └ ┘ KaTeX:\llcorner \lrcorner \llcorner \lrcorner KaTeX:\Updownarrow \Updownarrow
KaTeX:∣ ∣ \lvert \rvert KaTeX:\lVert \rVert \lVert \rVert \left. \right. KaTeX:\backslash \backslash
KaTeX:\lang KaTeX:\rang \lang \rang KaTeX:\lt \gt \lt \gt KaTeX:⟦ ⟧ ⟦ ⟧ KaTeX:\llbracket \rrbracket \llbracket \rrbracket KaTeX:\lBrace \rBrace \lBrace \rBrace
The pair of expressions \left KaTeX:s_1 and \right KaTeX:s_2 can be used to match the height of the separators KaTeX:s_1 and KaTeX:s_2 to the height of their content, e.g. :
:- :- :- :- :- :- :- :- :- :-
--- --- --- --- --- --- --- --- --- ---
KaTeX:\left| KaTeX:expr KaTeX:\right| KaTeX:\left\{ KaTeX:expr KaTeX:\right\} KaTeX:\left\Vert KaTeX:expr

KaTeX:\LaTeX math constructs

预览 方法 预览 方法 预览 方法
KaTeX:\frac{abc}{xyz} \frac{abc}{xyz} KaTeX:\overline{abc} \overline{abc} KaTeX:\overrightarrow{abc} \overrightarrow{abc}
KaTeX:f' f' KaTeX:\underline{abc} \underline{abc} KaTeX:\overleftarrow{abc} \overleftarrow{abc}
KaTeX:\sqrt{abc} \sqrt{abc} KaTeX:\widehat{abc} \widehat{abc} KaTeX:\overbrace{abc} \overbrace{abc}
KaTeX:\sqrt[n]{abc} \sqrt[n]{abc} KaTeX:\widetilde{abc} \widetilde{abc} KaTeX:\underbrace{abc} \underbrace{abc}

Overlap and Spacing

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

Vertical layout

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

Annotation

:- :- :- :- :-
KaTeX:\cancel{5} \cancel{5} KaTeX:\overbrace{a+b+c}^{\text{note}} \overbrace{a+b+c}^{\text{note}}
KaTeX:\bcancel{5} \bcancel{5} KaTeX:\underbrace{a+b+c}_{\text{note}} \underbrace{a+b+c}_{\text{note}}
KaTeX:\xcancel{ABC} \xcancel{ABC} KaTeX:\not = \not =
KaTeX:\sout{abc} \sout{abc} KaTeX:\boxed{\pi=\frac c d} \boxed{\pi=\frac c d}
KaTeX:\$a_{\angl n} MD syntax conflict $a_{\angl n} KaTeX:a_\angln a_\angln
KaTeX:\phase{-78^\circ} \phase{-78^\circ}
\tag{hi} x+y^{2x}
\tag{hi} x+y^{2x}

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

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

Alphabets and Unicode

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

Greek and Hebrew letters

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KaTeX:\alpha \alpha KaTeX:\kappa \kappa KaTeX:\psi \psi KaTeX:\digamma \digamma KaTeX:\Delta \Delta KaTeX:\Theta \Theta
KaTeX:\beta \beta KaTeX:\lambda \lambda KaTeX:\rho \rho KaTeX:\varepsilon \varepsilon KaTeX:\Gamma \Gamma KaTeX:\Upsilon \Upsilon
KaTeX:\chi \chi KaTeX:\mu \mu KaTeX:\sigma \sigma KaTeX:\varkappa \varkappa KaTeX:\Lambda \Lambda KaTeX:\Xi \Xi
KaTeX:\delta \delta KaTeX:\nu \nu KaTeX:\tau \tau KaTeX:\varphi \varphi KaTeX:\Omega \Omega
KaTeX:\epsilon \epsilon KaTeX:o o KaTeX:\theta \theta KaTeX:\varpi \varpi KaTeX:\Phi \Phi KaTeX:\aleph \aleph
KaTeX:\eta \eta KaTeX:\omega \omega KaTeX:\upsilon \upsilon KaTeX:\varrho \varrho KaTeX:\Pi \Pi KaTeX:\beth \beth
KaTeX:\gamma \gamma KaTeX:\phi \phi KaTeX:\xi \xi KaTeX:\varsigma \varsigma KaTeX:\Psi \Psi KaTeX:\daleth \daleth
KaTeX:\iota \iota KaTeX:\pi \pi KaTeX:\zeta \zeta KaTeX:\vartheta \vartheta KaTeX:\Sigma \Sigma KaTeX:\gimel \gimel

#Other letters

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

Delimiter Sizing

:- :-
KaTeX:\left(\LARGE{AB}\right) \left(\LARGE{AB}\right)

| KaTeX:( \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

Emphasis in \text

:- :- :-
KaTeX:\'{a} \'{a} KaTeX:\~{a} \~{a}
KaTeX:\.{a} \.{a} KaTeX:\H{a} \H{a}
KaTeX:\\\{a}`{a}|KaTeX:={a}={a}`
KaTeX:\"{a} \"{a} KaTeX:\v{a} \v{a}
KaTeX:\^{a} \^{a} KaTeX:\u{a} \u{a}
KaTeX:\r{a} \r{a}

Accents

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