LaTeX数学公式大全

本文参考:

1. 超详细 LaTex数学公式
2. Katex Function

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
$\Rho$ \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

其他字符

$\imath$ \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}

运算符

$\sum$ \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

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

$\arcsin$ \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}

$+$ +	$\cdot$ \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

$a'$ 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}

$\text{\'{a}}$ \'{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}

$\Alpha$ \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

$\imath$ \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}

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}

$\forall$ \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

关系

$=$ =	$\doteqdot$ \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

$\gnapprox$ \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

箭头

$\circlearrowleft$ \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

$\xleftarrow{abc}$ \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}

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
$\text{\textasciicircum}$ \text{\textasciicircum}	$\mathellipsis$ \mathellipsis	$\ddagger$ \ddagger
$`$ `	$\text{\textellipsis}$ \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

字体

LaTeX代码	效果	LaTeX代码	效果
\mathbb{A-Z}	$\mathbb{A-Z}$	\mathit{A-Z,a-z,0-9}	$\mathit{A-Z,a-z,0-9}$
\mathbf{A-Z,a-z,0-9}	$\mathbf{A-Z,a-z}$	\pmb{A-Z,a-z,0-9	$\pmb{A-Z,a-z,0-9}$
\mathtt{A-Z,a-z,0-9}	$\mathtt{A-Z,a-z,0-9}$	\mathrm{A-Z,a-z,0-9}	$\mathrm{A-Z,a-z,0-9}$
\mathsf{A-Z,a-z,0-9}	$\mathsf{A-Z,a-z,0-9}$	\mathcal{A-Z,a-z,0-9}	$\mathcal{A-Z,a-z,0-9}$
\mathscr{A-Z,a-z}	$\mathscr{A-Z}$	\mathfrak{A-Z,a-z,0-9}	$\mathfrak{A-Z,a-z,0-9}$

上下标

$$a^b$$

a^b 

$$a_c$$

a_c

$$a^b_c$$

a^b_c

$$a^{12}_{21}$$

a^{12}_{21}

分式和根式

$$3/8$$

3/8 

$$\frac{3}{8}$$

\frac{3}{8}

$$\tfrac{3}{8}$$

\tfrac{3}{8}

$$\sqrt{x} \Leftrightarrow x^{1/2}$$

\sqrt{x} \Leftrightarrow x^{1/2}

$$\sqrt[3]{2}$$

\sqrt[3]{2}

$$\sqrt{x^{2} + \sqrt{y}}$$

\sqrt{x^{2} + \sqrt{y}}

求和

$$\sum_{i=1}^n x_i$$

\sum_{i=1}^n x_i

连乘

$$\prod_{i=0}^{n}x_i$$

\prod_{i=0}^{n}x_i

极限

如果是行间公式，则如下：

$$\lim_{x \to \infty} f(x)$$

\lim_{x \to \infty} f(x)

如果是行内公式，则如下：

$$\lim\limits_{x \to \infty} f(x)$$

\lim\limits_{x \to \infty} f(x)

其他案例：

$$e^x=\lim_{n\to\infty} \left( 1+\frac{x}{n} \right)^n$$

e^x=\lim_{n\to\infty} \left( 1+\frac{x}{n} \right)^n

导数

$$\frac{\mathrm{d} y }{\mathrm{d} x}$$

\frac{\mathrm{d} y }{\mathrm{d} x}

$$\frac{\mathrm{d}^{n} y }{\mathrm{d} x^{n}}$$

\frac{\mathrm{d}^{n} y }{\mathrm{d} x^{n}}

$$\frac{\mathrm{d} }{\mathrm{d} x} y^2$$

\frac{\mathrm{d} }{\mathrm{d} x} y^2

$$\frac{ y^{'} }{ x^{'} }$$

\frac{ y^{'} }{ x^{'} }

偏导数

$$\frac{\partial f}{\partial x}$$

\frac{\partial f}{\partial x}

$$\frac{\partial ^{n} f}{\partial x^{n}}$$

\frac{\partial ^{n} f}{\partial x^{n}}

积分

$$\int_a^b f(x)\mathrm{d}x$$

\int_a^b f(x)\mathrm{d}x 

$$\int\int f(x)g(y) \mathrm{d}x\mathrm{d}y$$

\int\int f(x)g(y) \mathrm{d}x\mathrm{d}y

$$\oint_0^{\frac{\pi}{2}}2\theta\mathrm{d}\theta$$

\oint_0^{\frac{\pi}{2}}2\theta\mathrm{d}\theta

括号

LaTex表达式中的 ( ) 、 [ ] 均可以正常使用，但是对于 { } 需要使用转义字符使用，即使用 “{” 和 “}” 表示 { }

LaTeX代码	效果
\left( \cdots \right)	$\left( \cdots \right)$
\vert \cdots \vert	$\vert \cdots \vert$
\Vert \cdots \Vert	$\Vert \cdots \Vert$
\langle \cdots \rangle	$\langle \cdots \rangle$
\Biggl(\biggl(\Bigl(\bigl((\cdots)\bigr)\Bigr)\biggr)\Biggr)	$\Biggl(\biggl(\Bigl(\bigl((\cdots)\bigr)\Bigr)\biggr)\Biggr)$

$$f\left( \left[ \frac{ 1+\left\{x,y\right\} }{ \left( \frac{x}{y}+\frac{y}{x} \right) \left(u+1\right) }+a \right]^{3/2} \right)$$

f\left(
   \left[ 
     \frac{
       1+\left\{x,y\right\}
     }{
       \left(
          \frac{x}{y}+\frac{y}{x}
       \right)
       \left(u+1\right)
     }+a
   \right]^{3/2}
\right)

对齐方程

$$\begin{align} \sqrt{37} & = \sqrt{\frac{73^2-1}{12^2}} \\ & = \sqrt{\frac{73^2}{12^2}\cdot\frac{73^2-1}{73^2}} \\ & = \sqrt{\frac{73^2}{12^2}}\sqrt{\frac{73^2-1}{73^2}} \\ & = \frac{73}{12}\sqrt{1 - \frac{1}{73^2}} \\ & \approx \frac{73}{12}\left(1 - \frac{1}{2\cdot73^2}\right) \end{align}$$

\begin{align}
    \sqrt{37} & = \sqrt{\frac{73^2-1}{12^2}} \\
    & = \sqrt{\frac{73^2}{12^2}\cdot\frac{73^2-1}{73^2}} \\ 
    & = \sqrt{\frac{73^2}{12^2}}\sqrt{\frac{73^2-1}{73^2}} \\
    & = \frac{73}{12}\sqrt{1 - \frac{1}{73^2}} \\ 
    & \approx \frac{73}{12}\left(1 - \frac{1}{2\cdot73^2}\right)
\end{align}

$$\begin{align} f(x)&=\left(x^3\right)+\left(x^3+x^2+x^1\right)+\left(x^3+x^‌​2\right)\\ f'(x)&=\left(3x^2+2x+1\right)+\left(3x^2+2x\right)\\ f''(x)&=\left(6x+2\right)\\ \end{align}$$

\begin{align} 
    f(x)&=\left(x^3\right)+\left(x^3+x^2+x^1\right)+\left(x^3+x^‌​2\right)\\ 
    f'(x)&=\left(3x^2+2x+1\right)+\left(3x^2+2x\right)\\ 
    f''(x)&=\left(6x+2\right)\\ 
\end{align}

$$\begin{equation} \begin{aligned} f(x)&=\left(x^3\right)+\left(x^3+x^2+x^1\right)+\left(x^3+x^‌​2\right)\\ f'(x)&=\left(3x^2+2x+1\right)+\left(3x^2+2x\right)\\ f''(x)&=\left(6x+2\right)\\ \end{aligned} \end{equation}$$

\begin{equation}
    \begin{aligned} 
        f(x)&=\left(x^3\right)+\left(x^3+x^2+x^1\right)+\left(x^3+x^‌​2\right)\\ 
        f'(x)&=\left(3x^2+2x+1\right)+\left(3x^2+2x\right)\\ 
        f''(x)&=\left(6x+2\right)\\ 
    \end{aligned}
\end{equation}

矩阵

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

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

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

\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}

$$\begin{pmatrix} 1 & a_1 & a_1^2 & \cdots & a_1^n \\ 1 & a_2 & a_2^2 & \cdots & a_2^n \\ \vdots & \vdots& \vdots & \ddots & \vdots \\ 1 & a_m & a_m^2 & \cdots & a_m^n \end{pmatrix}$$

\begin{pmatrix}
    1 & a_1 & a_1^2 & \cdots & a_1^n \\
    1 & a_2 & a_2^2 & \cdots & a_2^n \\
    \vdots  & \vdots& \vdots & \ddots & \vdots \\
    1 & a_m & a_m^2 & \cdots & a_m^n    
\end{pmatrix}

分段函数

$$f(n) = \begin{cases} n/2, & \text{if $n$ is even} \\ 3n+1, & \text{if $n$ is odd} \end{cases}$$

f(n) =
\begin{cases}
    n/2,  & \text{if $n$ is even} \\
    3n+1, & \text{if $n$ is odd}
\end{cases}

$$\left. \begin{array}{l} \text{if $n$ is even:}&n/2\\ \text{if $n$ is odd:}&3n+1 \end{array} \right\} =f(n)$$

\left.
    \begin{array}{l}
        \text{if $n$ is even:}&n/2\\
        \text{if $n$ is odd:}&3n+1
    \end{array}
\right\}
=f(n)

$$f(n) = \begin{cases} \frac{n}{2}, & \text{if $n$ is even} \\[2ex] 3n+1, & \text{if $n$ is odd} \end{cases}$$

f(n) =
\begin{cases}
    \frac{n}{2},  & \text{if $n$ is even} \\[2ex]
    3n+1, & \text{if $n$ is odd}
\end{cases}

方程组

$$\left\{ \begin{array}{c} a_1x+b_1y+c_1z=d_1 \\ a_2x+b_2y+c_2z=d_2 \\ a_3x+b_3y+c_3z=d_3 \end{array} \right.$$

\left\{ 
    \begin{array}{c}
        a_1x+b_1y+c_1z=d_1 \\ 
        a_2x+b_2y+c_2z=d_2 \\ 
        a_3x+b_3y+c_3z=d_3
    \end{array}
\right.

$$\begin{cases} a_1x+b_1y+c_1z=d_1 \\ a_2x+b_2y+c_2z=d_2 \\ a_3x+b_3y+c_3z=d_3 \end{cases}$$

\begin{cases}
    a_1x+b_1y+c_1z=d_1 \\ 
    a_2x+b_2y+c_2z=d_2 \\ 
    a_3x+b_3y+c_3z=d_3
\end{cases}

$$\left\{ \begin{aligned} a_1x+b_1y+c_1z &=d_1+e_1 \\ a_2x+b_2y&=d_2 \\ a_3x+b_3y+c_3z &=d_3 \end{aligned} \right.$$

\left\{
    \begin{aligned} 
        a_1x+b_1y+c_1z &=d_1+e_1 \\ 
        a_2x+b_2y&=d_2 \\ 
        a_3x+b_3y+c_3z &=d_3 
    \end{aligned} 
\right. 

$$\begin{cases} a_1x+b_1y+c_1z=\frac{p_1}{q_1} \\[2ex] a_2x+b_2y+c_2z=\frac{p_2}{q_2} \\[2ex] a_3x+b_3y+c_3z=\frac{p_3}{q_3} \end{cases}$$

\begin{cases}
    a_1x+b_1y+c_1z=\frac{p_1}{q_1} \\[2ex] 
    a_2x+b_2y+c_2z=\frac{p_2}{q_2} \\[2ex] 
    a_3x+b_3y+c_3z=\frac{p_3}{q_3}
\end{cases}

$$\begin{cases} a_1x+b_1y+c_1z=\frac{p_1}{q_1} \\ a_2x+b_2y+c_2z=\frac{p_2}{q_2} \\ a_3x+b_3y+c_3z=\frac{p_3}{q_3} \end{cases}$$

\begin{cases}
    a_1x+b_1y+c_1z=\frac{p_1}{q_1} \\
    a_2x+b_2y+c_2z=\frac{p_2}{q_2} \\
    a_3x+b_3y+c_3z=\frac{p_3}{q_3}
\end{cases}