数学记号应该放在<math> ... </math>标记中。关于TeX显示的讨论或者您有任何建议，请到英文Wikipedia的相关页面。

语法	效果	语法	效果	语法	效果
\bar{a}	${\displaystyle {\bar {a}}}$	\acute{a}	${\displaystyle {\acute {a}}}$	\check{a}	${\displaystyle {\check {a}}}$
\grave{a}	${\displaystyle {\grave {a}}}$	\tilde{a}	${\displaystyle {\tilde {a}}}$	\hat{a}	${\displaystyle {\hat {a}}}$
\breve{a}	${\displaystyle {\breve {a}}}$	\dot{a}	${\displaystyle {\dot {a}}}$	\ddot{a}	${\displaystyle {\ddot {a}}}$

语法	效果	语法	效果	语法	效果
\sin a	${\displaystyle \sin a}$	\cos b	${\displaystyle \cos b}$	\tan c	${\displaystyle \tan c}$
\cot d	${\displaystyle \cot d}$	\sec e	${\displaystyle \sec e}$	\csc f	${\displaystyle \csc f}$
\arcsin k	${\displaystyle \arcsin k}$	\arccos l	${\displaystyle \arccos l}$	\arctan m	${\displaystyle \arctan m}$
\sinh g	${\displaystyle \sinh g}$	\cosh h	${\displaystyle \cosh h}$	\tanh i	${\displaystyle \tanh i}$
\coth j	${\displaystyle \coth j}$	\operatorname{sh}\,g	${\displaystyle \operatorname {sh} \,g}$	\operatorname{argsh}\,k	${\displaystyle \operatorname {argsh} \,k}$
\operatorname{ch}\,h	${\displaystyle \operatorname {ch} \,h}$	\operatorname{argch}\,l	${\displaystyle \operatorname {argch} \,l}$	\operatorname{th}\,i	${\displaystyle \operatorname {th} \,i}$
\operatorname{argth}\,m	${\displaystyle \operatorname {argth} \,m}$	\lim n	${\displaystyle \lim n}$	\limsup o	${\displaystyle \limsup o}$
\liminf p	${\displaystyle \liminf p}$	\min q	${\displaystyle \min q}$	\max r	${\displaystyle \max r}$
\inf s	${\displaystyle \inf s}$	\sup t	${\displaystyle \sup t}$	\exp u	${\displaystyle \exp u}$
\ln v	${\displaystyle \ln v}$	\lg w	${\displaystyle \lg w}$	\log x	${\displaystyle \log x}$
\log_{10} y	${\displaystyle \log _{10}y}$	\ker x	${\displaystyle \ker x}$	\deg x	${\displaystyle \deg x}$
\gcd x	${\displaystyle \gcd x}$	\Pr x	${\displaystyle \Pr x}$	\det x	${\displaystyle \det x}$
\hom x	${\displaystyle \hom x}$	\arg x	${\displaystyle \arg x}$	\dim x	${\displaystyle \dim x}$

语法	效果	语法	效果
\pmod{m}	${\displaystyle {\pmod {m}}}$	a \bmod b	${\displaystyle a{\bmod {b}}}$

语法	效果	语法	效果	语法	效果
\nabla	${\displaystyle \nabla }$	\partial x	${\displaystyle \partial x}$	dx	${\displaystyle dx}$
\dot x	${\displaystyle {\dot {x}}}$	\ddot y	${\displaystyle {\ddot {y}}}$

语法	效果	语法	效果	语法	效果	语法	效果	语法	效果
\forall	${\displaystyle \forall }$	\exists	${\displaystyle \exists }$	\empty	${\displaystyle \emptyset }$	\emptyset	${\displaystyle \emptyset }$	\varnothing	${\displaystyle \varnothing }$
\in	${\displaystyle \in }$	\ni	${\displaystyle \ni }$	\not\in	${\displaystyle \not \in }$	\notin	${\displaystyle \notin }$	\subset	${\displaystyle \subset }$
\subseteq	${\displaystyle \subseteq }$	\supset	${\displaystyle \supset }$	\supseteq	${\displaystyle \supseteq }$	\cap	${\displaystyle \cap }$	\bigcap	${\displaystyle \bigcap }$
\cup	${\displaystyle \cup }$	\bigcup	${\displaystyle \bigcup }$	\biguplus	${\displaystyle \biguplus }$	\sqsubset	${\displaystyle \sqsubset }$	\sqsubseteq	${\displaystyle \sqsubseteq }$
\sqsupset	${\displaystyle \sqsupset }$	\sqsupseteq	${\displaystyle \sqsupseteq }$	\sqcap	${\displaystyle \sqcap }$	\sqcup	${\displaystyle \sqcup }$	\bigsqcup	${\displaystyle \bigsqcup }$

语法	效果	语法	效果	语法	效果	语法	效果
p	${\displaystyle p}$	\land	${\displaystyle \land }$	\wedge	${\displaystyle \wedge }$	\bigwedge	${\displaystyle \bigwedge }$
\bar{q} \to p	${\displaystyle {\bar {q}}\to p}$	\lor	${\displaystyle \lor }$	\vee	${\displaystyle \vee }$	\bigvee	${\displaystyle \bigvee }$
\lnot	${\displaystyle \lnot }$	\neg q	${\displaystyle \neg q}$	\setminus	${\displaystyle \setminus }$	\smallsetminus	${\displaystyle \smallsetminus }$

语法	效果	语法	效果
\sqrt{x}	${\displaystyle {\sqrt {x}}}$	\sqrt[n]{x}	${\displaystyle {\sqrt[{n}]{x}}}$

语法	效果	语法	效果	语法	效果
\sim	${\displaystyle \sim }$	\approx	${\displaystyle \approx }$	\simeq	${\displaystyle \simeq }$
\cong	${\displaystyle \cong }$	\dot=	${\displaystyle {\dot {=}}}$	\le	${\displaystyle \leq }$
<	${\displaystyle <}$	\ll	${\displaystyle \ll }$	\gg	${\displaystyle \gg }$
\ge	${\displaystyle \geq }$	>	${\displaystyle >}$	\equiv	${\displaystyle \equiv }$
\not\equiv	${\displaystyle \not \equiv }$	\ne	${\displaystyle \neq }$	\neq	${\displaystyle \neq }$
\propto	${\displaystyle \propto }$	\pm	${\displaystyle \pm }$	\mp	${\displaystyle \mp }$

语法	效果	语法	效果	语法	效果
\Diamond	${\displaystyle \Diamond }$	\Box	${\displaystyle \Box }$	\triangle	${\displaystyle \triangle }$
\angle	${\displaystyle \angle }$	\perp	${\displaystyle \perp }$	\mid	${\displaystyle \mid }$
\nmid	${\displaystyle \nmid }$	\	${\displaystyle \|}$	45^\circ	${\displaystyle 45^{\circ }}$

语法	效果	语法	效果	语法	效果
\leftarrow	${\displaystyle \leftarrow }$	\gets	${\displaystyle \gets }$	\rightarrow	${\displaystyle \rightarrow }$
\to	${\displaystyle \to }$	\leftrightarrow	${\displaystyle \leftrightarrow }$	\longleftarrow	${\displaystyle \longleftarrow }$
\longrightarrow	${\displaystyle \longrightarrow }$	\mapsto	${\displaystyle \mapsto }$	\longmapsto	${\displaystyle \longmapsto }$
\hookrightarrow	${\displaystyle \hookrightarrow }$	\hookleftarrow	${\displaystyle \hookleftarrow }$	\nearrow	${\displaystyle \nearrow }$
\searrow	${\displaystyle \searrow }$	\swarrow	${\displaystyle \swarrow }$	\nwarrow	${\displaystyle \nwarrow }$
\uparrow	${\displaystyle \uparrow }$	\downarrow	${\displaystyle \downarrow }$	\updownarrow	${\displaystyle \updownarrow }$

语法	效果	语法	效果	语法	效果	语法	效果
\rightharpoonup	${\displaystyle \rightharpoonup }$	\rightharpoondown	${\displaystyle \rightharpoondown }$	\leftharpoonup	${\displaystyle \leftharpoonup }$	\leftharpoondown	${\displaystyle \leftharpoondown }$
\upharpoonleft	${\displaystyle \upharpoonleft }$	\upharpoonright	${\displaystyle \upharpoonright }$	\downharpoonleft	${\displaystyle \downharpoonleft }$	\downharpoonright	${\displaystyle \downharpoonright }$

语法	效果	语法	效果	语法	效果
\Leftarrow	${\displaystyle \Leftarrow }$	\Rightarrow	${\displaystyle \Rightarrow }$	\Leftrightarrow	${\displaystyle \Leftrightarrow }$
\Longleftarrow	${\displaystyle \Longleftarrow }$	\Longrightarrow	${\displaystyle \Longrightarrow }$	\Longleftrightarrow (or \iff)	${\displaystyle \Longleftrightarrow }$
\Uparrow	${\displaystyle \Uparrow }$	\Downarrow	${\displaystyle \Downarrow }$	\Updownarrow	${\displaystyle \Updownarrow }$

语法	效果	语法	效果	语法	效果	语法	效果	语法	效果	语法	效果
\eth	${\displaystyle \eth }$	\S	${\displaystyle \S }$	\P	${\displaystyle \P }$	\%	${\displaystyle \%}$	\dagger	${\displaystyle \dagger }$	\ddagger	${\displaystyle \ddagger }$
\star	${\displaystyle \star }$	*	${\displaystyle *}$	\ldots	${\displaystyle \ldots }$	\smile	${\displaystyle \smile }$	\frown	${\displaystyle \frown }$	\wr	${\displaystyle \wr }$

语法	效果	语法	效果	语法	效果
\oplus	${\displaystyle \oplus }$	\bigoplus	${\displaystyle \bigoplus }$	\otimes	${\displaystyle \otimes }$
\bigotimes	${\displaystyle \bigotimes }$	\times	${\displaystyle \times }$	\cdot	${\displaystyle \cdot }$
\div	${\displaystyle \div }$	\circ	${\displaystyle \circ }$	\bullet	${\displaystyle \bullet }$
\bigodot	${\displaystyle \bigodot }$	\boxtimes	${\displaystyle \boxtimes }$	\boxplus	${\displaystyle \boxplus }$

语法	效果	语法	效果	语法	效果	语法	效果
\triangleleft	${\displaystyle \triangleleft }$	\triangleright	${\displaystyle \triangleright }$	\infty	${\displaystyle \infty }$	\bot	${\displaystyle \bot }$
\top	${\displaystyle \top }$	\vdash	${\displaystyle \vdash }$	\vDash	${\displaystyle \vDash }$	\Vdash	${\displaystyle \Vdash }$
\models	${\displaystyle \models }$	\lVert	${\displaystyle \lVert }$	\rVert	${\displaystyle \rVert }$

语法	效果	语法	效果	语法	效果
\imath	${\displaystyle \imath }$	\hbar	${\displaystyle \hbar }$	\ell	${\displaystyle \ell }$
\mho	${\displaystyle \mho }$	\Finv	${\displaystyle \Finv }$	\Re	${\displaystyle \Re }$
\Im	${\displaystyle \Im }$	\wp	${\displaystyle \wp }$	\complement	${\displaystyle \complement }$

语法	效果	语法	效果	语法	效果	语法	效果
\diamondsuit	${\displaystyle \diamondsuit }$	\heartsuit	${\displaystyle \heartsuit }$	\clubsuit	${\displaystyle \clubsuit }$	\spadesuit	${\displaystyle \spadesuit }$
\Game	${\displaystyle \Game }$	\flat	${\displaystyle \flat }$	\natural	${\displaystyle \natural }$	\sharp	${\displaystyle \sharp }$

功能	语法	效果
上标	a^2	${\displaystyle a^{2}}$
下标	a_2	${\displaystyle a_{2}}$
组合	a^{2+2}	${\displaystyle a^{2+2}}$
	a_{i,j}	${\displaystyle a_{i,j}}$
结合上下标	x_2^3	${\displaystyle x_{2}^{3}}$
前置上下标	{}_1^2\!X_3^4	${\displaystyle {}_{1}^{2}\!X_{3}^{4}}$
导数 （HTML）	x'	${\displaystyle x'}$
导数 （PNG）	x^\prime	${\displaystyle x^{\prime }}$
导数 （错误）	x\prime	${\displaystyle x\prime }$
导数点	\dot{x}	${\displaystyle {\dot {x}}}$
	\ddot{y}	${\displaystyle {\ddot {y}}}$
向量	\vec{c}	${\displaystyle {\vec {c}}}$
	\overleftarrow{a b}	${\displaystyle {\overleftarrow {ab}}}$
	\overrightarrow{c d}	${\displaystyle {\overrightarrow {cd}}}$
	\widehat{e f g}	${\displaystyle {\widehat {efg}}}$
上划线	\overline{h i j}	${\displaystyle {\overline {hij}}}$
下划线	\underline{k l m}	${\displaystyle {\underline {klm}}}$
上括号	\overbrace{1+2+\cdots+100}	${\displaystyle \overbrace {1+2+\cdots +100} }$
	\begin{matrix} 5050 \\ \overbrace{ 1+2+\cdots+100 } \end{matrix}	${\displaystyle {\begin{matrix}5050\\\overbrace {1+2+\cdots +100} \end{matrix}}}$
下括号	\underbrace{a+b+\cdots+z}	${\displaystyle \underbrace {a+b+\cdots +z} }$
	\begin{matrix} \underbrace{ a+b+\cdots+z } \\ 26 \end{matrix}	${\displaystyle {\begin{matrix}\underbrace {a+b+\cdots +z} \\26\end{matrix}}}$
求和	\sum_{k=1}^N k^2	${\displaystyle \sum _{k=1}^{N}k^{2}}$
	\begin{matrix} \sum_{k=1}^N k^2 \end{matrix}	${\displaystyle {\begin{matrix}\sum _{k=1}^{N}k^{2}\end{matrix}}}$
求积	\prod_{i=1}^N x_i	${\displaystyle \prod _{i=1}^{N}x_{i}}$
	\begin{matrix} \prod_{i=1}^N x_i \end{matrix}	${\displaystyle {\begin{matrix}\prod _{i=1}^{N}x_{i}\end{matrix}}}$
上积	\coprod_{i=1}^N x_i	${\displaystyle \coprod _{i=1}^{N}x_{i}}$
	\begin{matrix} \coprod_{i=1}^N x_i \end{matrix}	${\displaystyle {\begin{matrix}\coprod _{i=1}^{N}x_{i}\end{matrix}}}$
极限	\lim_{n \to \infty}x_n	${\displaystyle \lim _{n\to \infty }x_{n}}$
	\begin{matrix} \lim_{n \to \infty}x_n \end{matrix}	${\displaystyle {\begin{matrix}\lim _{n\to \infty }x_{n}\end{matrix}}}$
积分	\int_{-N}^{N} e^x\, dx	${\displaystyle \int _{-N}^{N}e^{x}\,dx}$
	\begin{matrix} \int_{-N}^{N} e^x\, dx \end{matrix}	${\displaystyle {\begin{matrix}\int _{-N}^{N}e^{x}\,dx\end{matrix}}}$
双重积分	\iint_{D}^{W} \, dx\,dy	${\displaystyle \iint _{D}^{W}\,dx\,dy}$
三重积分	\iiint_{E}^{V} \, dx\,dy\,dz	${\displaystyle \iiint _{E}^{V}\,dx\,dy\,dz}$
四重积分	\iiiint_{F}^{U} \, dx\,dy\,dz\,dt	${\displaystyle \iiiint _{F}^{U}\,dx\,dy\,dz\,dt}$
路径积分	\oint_{C} x^3\, dx + 4y^2\, dy	${\displaystyle \oint _{C}x^{3}\,dx+4y^{2}\,dy}$
交集	\bigcap_1^{n} p	${\displaystyle \bigcap _{1}^{n}p}$
并集	\bigcup_1^{k} p	${\displaystyle \bigcup _{1}^{k}p}$

功能	语法	效果
分数	\frac{2}{4}或者{2 \over 4} = 0.5	${\displaystyle {\frac {2}{4}}=0.5}$
小型分数	\begin{matrix} \frac{2}{4} \end{matrix} = 0.5	${\displaystyle {\begin{matrix}{\frac {2}{4}}\end{matrix}}=0.5}$
二项式系数	{n \choose k}	${\displaystyle {n \choose k}}$
矩阵	\begin{pmatrix} x & y \\ z & v \end{pmatrix}	${\displaystyle {\begin{pmatrix}x&y\\z&v\end{pmatrix}}}$
	\begin{bmatrix} 0 & \cdots & 0 \\ \vdots & \ddots & \vdots \\ 0 & \cdots & 0\end{bmatrix}	${\displaystyle {\begin{bmatrix}0&\cdots &0\\\vdots &\cdots &\vdots \\0&\cdots &0\end{bmatrix}}}$
	\begin{Bmatrix} x & y \\ z & v \end{Bmatrix}	${\displaystyle {\begin{Bmatrix}x&y\\z&v\end{Bmatrix}}}$
	\begin{vmatrix} x & y \\ z & v \end{vmatrix}	${\displaystyle {\begin{vmatrix}x&y\\z&v\end{vmatrix}}}$
	\begin{Vmatrix} x & y \\ z & v \end{Vmatrix}	${\displaystyle {\begin{Vmatrix}x&y\\z&v\end{Vmatrix}}}$
	\begin{matrix} x & y \\ z & v \end{matrix}	${\displaystyle {\begin{matrix}x&y\\z&v\end{matrix}}}$
条件定义	f(n) = \begin{cases} n/2, & \mbox{if }n\mbox{ is even} \\ 3n+1, & \mbox{if }n\mbox{ is odd} \end{cases}	${\displaystyle f(n)={\begin{cases}n/2,&{\mbox{if }}n{\mbox{ is even}}\\3n+1,&{\mbox{if }}n{\mbox{ is odd}}\end{cases}}}$
多行等式	\begin{matrix}f(n+1)&=& (n+1)^2 \\ \ & =& n^2 + 2n + 1\end{matrix}	${\displaystyle {\begin{matrix}f(n+1)&=&(n+1)^{2}\\\ &=&n^{2}+2n+1\end{matrix}}}$
联立方程	\begin{cases} 3 x + 5 y + z \\ 7 x - 2 y + 4 z \\ -6 x + 3 y + 2 z \end{cases}	${\displaystyle {\begin{cases}3x+5y+z\\7x-2y+4z\\-6x+3y+2z\end{cases}}}$

大写希腊字母
\Alpha	${\displaystyle \mathrm {A} }$	\Beta	${\displaystyle \mathrm {B} }$	\Gamma	${\displaystyle \Gamma }$	\Delta	${\displaystyle \Delta }$	\Epsilon	${\displaystyle \mathrm {E} }$	\Zeta	${\displaystyle \mathrm {Z} }$
\Eta	${\displaystyle \mathrm {H} }$	\Theta	${\displaystyle \Theta }$	\Iota	${\displaystyle \mathrm {I} }$	\Kappa	${\displaystyle \mathrm {K} }$	\Lambda	${\displaystyle \Lambda }$	\Mu	${\displaystyle \mathrm {M} }$
\Nu	${\displaystyle \mathrm {N} }$	\Xi	${\displaystyle \Xi }$	O1	${\displaystyle O}$	\Pi	${\displaystyle \Pi }$	\Rho	${\displaystyle \mathrm {P} }$	\Sigma	${\displaystyle \Sigma }$
\Tau	${\displaystyle \mathrm {T} }$	\Upsilon	${\displaystyle \Upsilon }$	\Phi	${\displaystyle \Phi }$	\Chi	${\displaystyle \mathrm {X} }$	\Psi	${\displaystyle \Psi }$	\Omega	${\displaystyle \Omega }$

小写希腊字母
\alpha	${\displaystyle \alpha }$	\beta	${\displaystyle \beta }$	\gamma	${\displaystyle \gamma }$	\delta	${\displaystyle \delta }$	\epsilon	${\displaystyle \epsilon }$	\zeta	${\displaystyle \zeta }$
\eta	${\displaystyle \eta }$	\theta	${\displaystyle \theta }$	\iota	${\displaystyle \iota }$	\kappa	${\displaystyle \kappa }$	\lambda	${\displaystyle \lambda }$	\mu	${\displaystyle \mu }$
\nu	${\displaystyle \nu }$	\xi	${\displaystyle \xi }$	o1	${\displaystyle o}$	\pi	${\displaystyle \pi }$	\rho	${\displaystyle \rho }$	\sigma	${\displaystyle \sigma }$
\tau	${\displaystyle \tau }$	\upsilon	${\displaystyle \upsilon }$	\phi	${\displaystyle \phi }$	\chi	${\displaystyle \chi }$	\psi	${\displaystyle \psi }$	\omega	${\displaystyle \omega }$

特殊希腊字母2
\varepsilon	${\displaystyle \varepsilon }$	\digamma	${\displaystyle \digamma }$	\vartheta	${\displaystyle \vartheta }$	\varkappa	${\displaystyle \varkappa }$
\varpi	${\displaystyle \varpi }$	\varrho	${\displaystyle \varrho }$	\varsigma	${\displaystyle \varsigma }$	\varphi	${\displaystyle \varphi }$

备注：

1. 希腊字母Ο（Omicron）与拉丁字母O外形相同，故直接使用拉丁字母O和o而不是语法\Omicron和\omicrion显示希腊字母Omicron。
2. 斜体小写希腊字母一般用于在方程中显示变量。

语法

\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZ}

效果

${\displaystyle \mathbb {ABCDEFGHIJKLMNOPQRSTUVWXYZ} }$

黑板粗体（Blackboard bold）一般用于表示数学和物理学中的向量或集合的符号。

备注：

1. 花括号{}中只有使用大写字母才能正常显示，使用小写字母或数字会得到其他符号。

语法

\mathbf{012…abc…ABC…}

效果

${\displaystyle \mathbf {0\ 1\ 2\ 3\ 4\ 5\ 6\ 7\ 8\ 9} }$

${\displaystyle \mathbf {a\ b\ c\ d\ e\ f\ g\ h\ i\ j\ k\ l\ m\ n\ o\ p\ q\ r\ s\ t\ u\ v\ w\ x\ y\ z} }$

${\displaystyle \mathbf {A\ B\ C\ D\ E\ F\ G\ H\ I\ J\ K\ L\ M\ N\ O\ P\ Q\ R\ S\ T\ U\ V\ W\ X\ Y\ Z} }$

备注

花括号{}内只能使用拉丁字母和数字，不能使用希腊字母如\alpha等。

语法

\boldsymbol{012…abc…ABC…\alpha \beta \gamma…}

效果

${\displaystyle {\boldsymbol {0\ 1\ 2\ 3\ 4\ 5\ 6\ 7\ 8\ 9}}}$

${\displaystyle {\boldsymbol {a\ b\ c\ d\ e\ f\ g\ h\ i\ j\ k\ l\ m\ n\ o\ p\ q\ r\ s\ t\ u\ v\ w\ x\ y\ z}}}$

${\displaystyle {\boldsymbol {A\ B\ C\ D\ E\ F\ G\ H\ I\ J\ K\ L\ M\ N\ O\ P\ Q\ R\ S\ T\ U\ V\ W\ X\ Y\ Z}}}$

${\displaystyle {\boldsymbol {\alpha \ \beta \ \gamma \ \delta \ \epsilon \ \zeta \ \eta \ \theta \ \iota \ \kappa \ \lambda \ \mu \ \nu \ \xi \ o\ \pi \ \rho \ \sigma \ \tau \ \upsilon \ \phi \ \chi \ \psi \ \omega }}}$

备注

使用\boldsymbol{}可以加粗所有合法的符号。

语法

\mathit{012456789}

效果

${\displaystyle {\mathit {0\ 1\ 2\ 3\ 4\ 5\ 6\ 7\ 8\ 9}}}$

备注

斜体语法仅对数字有效。

语法

\mathrm{012…abc…ABC…} 或 \mbox{}

效果

${\displaystyle \mathrm {0\ 1\ 2\ 3\ 4\ 5\ 6\ 7\ 8\ 9} }$

${\displaystyle \mathrm {a\ b\ c\ d\ e\ f\ g\ h\ i\ j\ k\ l\ m\ n\ o\ p\ q\ r\ s\ t\ u\ v\ w\ x\ y\ z} }$

${\displaystyle \mathrm {A\ B\ C\ D\ E\ F\ G\ H\ I\ J\ K\ L\ M\ N\ O\ P\ Q\ R\ S\ T\ U\ V\ W\ X\ Y\ Z} }$

备注

罗马体可以使用数字和字母。

语法

\mathfrak{012…abc…ABC…}

效果

${\displaystyle {\mathfrak {0\ 1\ 2\ 3\ 4\ 5\ 6\ 7\ 8\ 9}}}$

${\displaystyle {\mathfrak {a\ b\ c\ d\ e\ f\ g\ h\ i\ j\ k\ l\ m\ n\ o\ p\ q\ r\ s\ t\ u\ v\ w\ x\ y\ z}}}$

${\displaystyle {\mathfrak {A\ B\ C\ D\ E\ F\ G\ H\ I\ J\ K\ L\ M\ N\ O\ P\ Q\ R\ S\ T\ U\ V\ W\ X\ Y\ Z}}}$

备注

哥特体可以使用数字和字母。

语法

\mathcal{ABC…}

效果

${\displaystyle {\mathcal {A\ B\ C\ D\ E\ F\ G\ H\ I\ J\ K\ L\ M\ N\ O\ P\ Q\ R\ S\ T\ U\ V\ W\ X\ Y\ Z}}}$

备注

手写体只可以使用大写字母。

语法

\aleph \beth \gimel \daleth

效果

${\displaystyle \aleph \ \beth \ \gimel \ \daleth }$

功能	语法	显示
不好看	( \frac{1}{2} )	${\displaystyle ({\frac {1}{2}})}$
好一点	\left( \frac{1}{2} \right)	${\displaystyle \left({\frac {1}{2}}\right)}$

您可以使用\left和\right来显示不同的括号：

功能	语法	显示
圆括号，小括号	\left( \frac{a}{b} \right)	${\displaystyle \left({\frac {a}{b}}\right)}$
方括号，中括号	\left[ \frac{a}{b} \right]	${\displaystyle \left[{\frac {a}{b}}\right]}$
花括号，大括号	\left\{ \frac{a}{b} \right\}	${\displaystyle \left\{{\frac {a}{b}}\right\}}$
角括号	\left \langle \frac{a}{b} \right \rangle	${\displaystyle \left\langle {\frac {a}{b}}\right\rangle }$
单竖线，绝对值	\left| \frac{a}{b} \right|	${\displaystyle \left|{\frac {a}{b}}\right|}$
双竖线，范	\left \| \frac{a}{b} \right \|	${\displaystyle \left\|{\frac {a}{b}}\right\|}$
取整函数 （Floor function）	\left \lfloor \frac{a}{b} \right \rfloor	${\displaystyle \left\lfloor {\frac {a}{b}}\right\rfloor }$
取顶函数 （Ceiling function)	\left \lceil \frac{c}{d} \right \rceil	${\displaystyle \left\lceil {\frac {c}{d}}\right\rceil }$
斜线与反斜线	\left / \frac{a}{b} \right \backslash	${\displaystyle \left/{\frac {a}{b}}\right\backslash }$
上下箭头	\left \uparrow \frac{a}{b} \right \downarrow	${\displaystyle \left\uparrow {\frac {a}{b}}\right\downarrow }$
	\left \Uparrow \frac{a}{b} \right \Downarrow	${\displaystyle \left\Uparrow {\frac {a}{b}}\right\Downarrow }$
	\left \updownarrow \frac{a}{b} \right \Updownarrow	${\displaystyle \left\updownarrow {\frac {a}{b}}\right\Updownarrow }$
混合括号	\left [ 0,1 \right ) \left \langle \psi \right |	${\displaystyle \left[0,1\right)}$ ${\displaystyle \left\langle \psi \right|}$
单左括号	\left \{ \frac{a}{b} \right .	${\displaystyle \left\{{\frac {a}{b}}\right.}$
单右括号	\left . \frac{a}{b} \right \}	${\displaystyle \left.{\frac {a}{b}}\right\}}$

备注：

• 可以使用\big, \Big, \bigg, \Bigg控制括号的大小，比如代码\Bigg ( \bigg [ \Big \{ \big \langle \left | \| \frac{a}{b} \| \right | \big \rangle \Big \} \bigg ] \Bigg )显示

${\displaystyle {\Bigg (}{\bigg [}{\Big \{}{\big \langle }\left|\|x\|\right|{\big \rangle }{\Big \}}{\bigg ]}{\Bigg )}}$

注意TeX能够自动处理大多数的空格，但是您有时候需要自己来控制。

功能	语法	显示	备注
两个quad空格	a \qquad b	${\displaystyle a\qquad b}$	两个${\displaystyle m}$的宽度
quad空格	a \quad b	${\displaystyle a\quad b}$	一个${\displaystyle m}$的宽度
大空格	a\ b	${\displaystyle a\ b}$	1/3${\displaystyle m}$宽度
中等空格	a\;b	${\displaystyle a\;b}$	2/7${\displaystyle m}$宽度
小空格	a\,b	${\displaystyle a\,b}$	1/6${\displaystyle m}$宽度
没有空格	ab	${\displaystyle ab\,}$
紧贴	a\!b	${\displaystyle a\!b}$	缩进1/6${\displaystyle m}$宽度

語法

\{\color{顏色名}表達式}

例子

• {\color{Blue}x^2}+{\color{Brown}2x}-{\color{OliveGreen}1}

${\displaystyle {\color {Blue}x^{2}}+{\color {Brown}2x}-{\color {OliveGreen}1}}$

• x_{1,2}=\frac{-b\pm\sqrt{{\color{Red}b^2-4ac}}}{2a}

${\displaystyle x_{1,2}={\frac {-b\pm {\sqrt {\color {Red}b^{2}-4ac}}}{2a}}}$

• 一個介紹TeX的PDF文檔（英文）： http://www.ctan.org/tex-archive/info/gentle/gentle.pdf
• 完整的參考列表（英文）：http://wso.williams.edu/how/lshort2e/node61.html