latex.md

LaTeX 备忘清单

本备忘单总结了 LaTeX 常用显示数学符号的参考列表和一些 KaTeX 的应用示例。

入门

介绍

LaTeX 基于 TEX 的排版系统，适用于生成高印刷质量的科技和数学、物理文档。

• LaTeX 官网 (latex-project.org)
• KaTeX 官网 (katex.org)

而 KaTeX 只处理 LaTeX 的数学符号的一个更小的子集，用于 web 上展示

示例

% \f is defined as #1f(#2) using the macro
f\relax(x) = \int_{-\infty}^\infty
    f\hat\xi\,e^{2 \pi i \xi x}
    \,d\xi

---

% \f is defined as #1f(#2) using the macro
f\relax(x) = \int_{-\infty}^\infty
    f\hat\xi\,e^{2 \pi i \xi x}
    \,d\xi

行内展示

基于 KaTeX 在一行
展示示例： `KaTeX:\int_0^\infty x^2 dx`

基于 KaTeX 在一行展示示例： KaTeX:\int_0^\infty x^2 dx

Supported Functions

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}

\text｛…｝中的强调功能

:-	:-	:-
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}

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

希腊和希伯来字母 Greek and Hebrew letters

预览	方法	预览	方法	预览	方法	预览	方法	预览	方法	预览	方法
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

其它字母

:-	:-	:-	:-	:-	:-	:-	:-	:-	:-
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}

字母和 Unicode

预览	方法	预览	方法	预览	方法	预览	方法
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

注解

:-	:-	:-	:-	:-
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语法冲突	$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}

垂直布局

:-	:-	:-	:-	:-	:-
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}}

重叠和间距

:-	:-	:-	:-
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}

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}

分隔符 Delimiters

预览	方法	预览	方法	预览	方法	预览	方法	预览	方法
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语法冲突)	\|	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

可以使用一对表达式 \left KaTeX:s_1 和 \right KaTeX:s_2 来将分隔符 KaTeX:s_1 和 KaTeX:s_2 的高度与其内容的高度进行匹配，例如: :- | :- | :- | :- | :- | :- | :- | :- | :- | :- | :- :- | :- | :- | :- | :- | :- | :- | :- | :- | :- | :- | KaTeX:\left\| | KaTeX:expr | KaTeX:\right\| | | KaTeX:\left\{ |KaTeX:expr | KaTeX:\right\} | | KaTeX:\left\Vert| KaTeX:expr | KaTeX:\right. |

可变大小的符号

预览	方法	预览	方法	预览	方法	预览	方法	预览	方法
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

标准函数名称

预览	方法	预览	方法	预览	方法	预览	方法
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

函数名应该用罗马字体，而不是斜体，例如:

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

逻辑与集合论

:-	:-	:-	:-	:-	:-	:-	:-
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 或 \lnot

---

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

宏指令

:-	:-	:-	:-
KaTeX:\def\foo{x^2} \foo + \foo	\def\foo{x^2} \foo + \foo	KaTeX:\gdef\bar#1{#1^2} \bar{y} + \bar{y}	\gdef\bar#1{#1^2} \bar{y} + \bar{y}

特殊符号

:-	:-	:-	:-	:-	:-
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 }

运算符

数学运算符

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

大运算符

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

分数和二项式

:-	:-	:-	:-
KaTex:\frac{a}{b}	\frac{a}{b}	KaTex:\tfrac{a}{b}	\tfrac{a}{b}
KaTex:{a \over b}	{a \over b}	KaTex:\dfrac{a}{b}	\dfrac{a}{b}
KaTex:\genfrac ( ] {2pt}{1}a{a+1}	\genfrac ( ] {2pt}{1}a{a+1}	KaTex:{a \above{2pt} b+1}	{a \above{2pt} b+1}
KaTex:a/b	a/b	KaTex:\cfrac{a}{1 + \cfrac{1}{b}}	\cfrac{a}{1 + \cfrac{1}{b}}

:-	:-	:-	:-
KaTex:\binom{n}{k}	\binom{n}{k}	KaTex:\dbinom{n}{k}	\dbinom{n}{k}
KaTex:{n\brace k}	{n\brace k}	KaTex:{n \choose k}	{n \choose k}
KaTex:\tbinom{n}{k}	\tbinom{n}{k}	KaTex:{n\brack k}	{n\brack k}

\sqrt

:-	:-	:-	:-
KaTex:\sqrt{x}	\sqrt{x}	KaTex:\sqrt[3]{x}	\sqrt[3]{x}

二元运算符

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

关系

关系

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

否定关系

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

KaTex:\not = \not =

箭头

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

可扩展箭头

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

符号和标点符号

符号和标点符号

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

Environments

Environments 1

\begin{matrix}
   a & b \\
   c & d
\end{matrix}

\begin{matrix}
   a & b \\
   c & d
\end{matrix}

Environments 2

\begin{array}{cc}
   a & b \\
   c & d
\end{array}

\begin{array}{cc}
   a & b \\
   c & d
\end{array}

Environments 3

\begin{pmatrix}
   a & b \\
   c & d
\end{pmatrix}

\begin{pmatrix}
   a & b \\
   c & d
\end{pmatrix}

Environments 4

\begin{bmatrix}
   a & b \\
   c & d
\end{bmatrix}

\begin{bmatrix}
   a & b \\
   c & d
\end{bmatrix}

Environments 5

\begin{vmatrix}
   a & b \\
   c & d
\end{vmatrix}

\begin{vmatrix}
   a & b \\
   c & d
\end{vmatrix}

Environments 6

\begin{Vmatrix}
   a & b \\
   c & d
\end{Vmatrix}

\begin{Vmatrix}
   a & b \\
   c & d
\end{Vmatrix}

Environments 7

\begin{Bmatrix}
   a & b \\
   c & d
\end{Bmatrix}

\begin{Bmatrix}
   a & b \\
   c & d
\end{Bmatrix}

Environments 8

\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}

Environments 9

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}

Environments 10

\begin{rcases}
   a &\text{if } b \\
   c &\text{if } d
\end{rcases}⇒…

\begin{rcases}
   a &\text{if } b \\
   c &\text{if } d
\end{rcases}⇒…

Environments 11

\begin{smallmatrix}
   a & b \\
   c & d
\end{smallmatrix}

\begin{smallmatrix}
   a & b \\
   c & d
\end{smallmatrix}

Environments 12

\sum_{
\begin{subarray}{l}
   i\in\Lambda\\
   0<j<n
\end{subarray}}

\sum_{
\begin{subarray}{l}
   i\in\Lambda\\
   0<j<n
\end{subarray}}

Environments 13

\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}

Environments 14

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

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

Environments 15

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

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

Environments 16

\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}

Environments 17

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

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

样式、颜色、大小和字体

Color 颜色

:-	:-
KaTex:\color{blue} F=ma	\color{blue} F=ma
KaTex:\textcolor{blue}{F=ma}	\textcolor{blue}{F=ma}
KaTex:\textcolor{#228B22}{F=ma}	\textcolor{#228B22}{F=ma}
KaTex:\colorbox{aqua}{$F=ma$}	\colorbox{aqua}{$F=ma$}
KaTex:\fcolorbox{red}{aqua}{$F=ma$}	\fcolorbox{red}{aqua}{$F=ma$}

Font 字体

:-	:-	:-	:-	:-	:-
KaTex:\Huge AB	\Huge AB	KaTex:\normalsize AB	\normalsize AB	KaTex:\normalsize AB	\normalsize AB
KaTex:\huge AB	\huge AB	KaTex:\huge AB	\huge AB	KaTex:\small AB	\small AB
KaTex:\LARGE AB	\LARGE AB	KaTex:\LARGE AB	\LARGE AB	KaTex:\footnotesize AB	\footnotesize AB
KaTex:\Large AB	\Large AB	KaTex:\Large AB	\Large AB	KaTex:\scriptsize AB	\scriptsize AB
KaTex:\large AB	\large AB	KaTex:\large AB	\large AB	KaTex:\tiny AB	\tiny AB

Style 样式

:-	:-	:-	:-
KaTex:\displaystyle\sum_{i=1}^n	\displaystyle\sum_{i=1}^n	KaTex:\textstyle\sum_{i=1}^n	\textstyle\sum_{i=1}^n
KaTex:\scriptstyle x	\scriptstyle x	KaTex:\scriptscriptstyle x	\scriptscriptstyle x
KaTex:\lim\limits_x	\lim\limits_x	KaTex:\lim\nolimits_x	\lim\nolimits_x
KaTex:\verb!x^2!	\verb!x^2!

另见

• LaTeX 官网 (latex-project.org)
• KaTeX 官网 (katex.org)
• symbols.pdf (cmor-faculty.rice.edu)