这是一份关于从逻辑功能分类好的$\LaTeX$的符号及功能速查表。此文记录的符号及功能基本是$\KaTeX$所支持的,但是和$\LaTeX$所能表示的几乎相同。

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字母和符号

希腊字母

$\Alpha$ \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
$\Sigma$ \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
$\imath$ \imath $\nabla$ \nabla $\Im$ \Im $\Reals$ \Reals
$\jmath$ \jmath $\partial$ \partial $\image$ \image $\wp$ \wp
$\aleph$ \aleph $\Game$ \Game $\Bbbk$ \Bbbk $\weierp$ \weierp
$\alef$ \alef $\Finv$ \Finv $\N$ \N $\Z$ \Z
$\alefsym$ \alefsym $\cnums$ \cnums $\natnums$ \natnums $\text{\aa}$ \text{\aa}
$\beth$ \beth $\Complex$ \Complex $\R$ \R $\text{\AA}$ \text{\AA}
$\gimel$ \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}

符号和标点符号

% 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
$$ <code> $\mathellipsis$ \mathellipsis $\ddagger$ \ddagger
$\text{\textquoteleft}$ text{\textquoteleft} $\text{\textellipsis}$ \text{\textellipsis} $\text{\textdaggerdbl}$ \text{\textdaggerdbl}
$\lq$ \lq $\Box$ \Box $\Dagger$ \Dagger
$\text{\textquoteright}$ \text{\textquoteright} $\square$ \square $\angle$ \angle
$\rq$ \rq $\blacksquare$ \blacksquare $\measuredangle$ \measuredangle
$\text{\textquotedblleft}$ \text{\textquotedblleft} $\triangle$ \triangle $\sphericalangle$ \sphericalangle
$"$ " $\triangledown$ \triangledown $\top$ \top
$\text{\textquotedblright}$ \text{\textquotedblright} $\triangleleft$ \triangleleft $\bot$ \bot
$\colon$ \colon $\triangleright$ \triangleright $\$$ \$
$\backprime$ \backprime $\bigtriangledown$ \bigtriangledown $\text{\textdollar}$ \text{\textdollar}
$\prime$ \prime $\bigtriangleup$ \bigtriangleup $\pounds$ \pounds
$\text{\textless}$ \text{\textless} $\blacktriangle$ \blacktriangle $\mathsterling$ \mathsterling
$\text{\textgreater}$ \text{\textgreater} $\blacktriangledown$ \blacktriangledown $\text{\textsterling}$ \text{\textsterling}
$\text{\textbar}$ \text{\textbar} $\blacktriangleleft$ \blacktriangleleft $\yen$ \yen
$\text{\textbardbl}$ \text{\textbardbl} $\blacktriangleright$ \blacktriangleright $\surd$ \surd
$\text{\textbraceleft}$ \text{\textbraceleft} $\diamond$ \diamond $\degree$ \degree
$\text{\textbraceright}$ \text{\textbraceright} $\Diamond$ \Diamond $\text{\textdegree}$ \text{\textdegree}
$\text{\P}$ \text{\P} $\lozenge$ \lozenge $\mho$ \mho
$\text{\S}$ \text{\S} $\blacklozenge$ \blacklozenge $\diagdown$ \diagdown
$\text{\sect}$ \text{\sect} $\star$ \star $\diagup$ \diagup
$\copyright$ \copyright $\bigstar$ \bigstar $\flat$ \flat
$\circledR$ \circledR $\clubsuit$ \clubsuit $\natural$ \natural
$\text{\textregistered}$ \text{\textregistered} $\clubs$ \clubs $\sharp$ \sharp
$\circledS$ \circledS $\diamondsuit$ \diamondsuit $\heartsuit$ \heartsuit
$\text{\textcircled a}$ \text{\textcircled a} $\diamonds$ \diamonds $\hearts$ \hearts
$\maltese$ \maltese $\spadesuit$ \spadesuit $\spades$ \spades

方向指示符

$\circlearrowleft$ \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

可扩展方向指示符

$\xleftarrow{abc}$ \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}

分隔符

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

分隔符大小

$\left(\LARGE{AB}\right)$ \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

布局

$\cancel{5}$ \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}

\(\tag{hi} x+y^{2x}\) \tag{hi} x+y^{2x}

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

垂直布局

$x_n$ 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{!}{=}

逻辑与集合论

$\forall$ \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

操作符和算子

二元操作符

$+$ + $\cdot$ \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

高级算子

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

三角函数

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

表达式

等式表达式

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

不等式表达式

$\gnapprox$ \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

分式和二项式

$\frac{a}{b}$ \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}

空格

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

字体

字体族

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

字体大小

$\Huge AB$ \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

字体样式

$\displaystyle \sum_{i=1}^n$ \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!