Markdown 数学符号速查

表 1: 数学模式重音符

\(\hat{a}\) \hat	\(\check{a}\) \check	\(\tilde{a}\) \tilde	$ \acute{a} $ \acute
\(\grave{a}\) \grave{a}	\(\dot{a}\) \dot{a}	\(\bar{a}\) \bar{a}	$ \ddot{a}$ \ddot{a}
\(\vec{a}\) \vec{a}	\(\widehat{A}\) \widehat{A}	\(\widetilde{A}\) \widetilde{A}	$ \breve{a} $ \breve{a}

表 2: 小写希腊字母

\(\alpha\) \alpha	\(\theta\) \theta	\(\upsilon\) \upsilon	$ o$ o
\(\beta\) \beta	\(\vartheta\) \vartheta	\(\pi\) \pi	$ \phi$ \phi
\(\gamma\) \gamma	\(\iota\) \iota	\(\varpi\) \varpi	$ \varphi$ \varphi
\(\delta\) \delta	\(\kappa\) \kappa	\(\rho\) \rho	$ \chi$ \chi
\(\epsilon\) \epsilon	**$\lambda $ \lambda **	\(\varrho\) \varrho	$ \psi$ \psi
\(\varepsilon\) \varepsilon	**$\mu $ \mu **	\(\sigma\) \sigma	$ \omega$ \omega
\(\zeta\) \zeta	**$\nu $ \nu **	\(\varsigma\) \varsigma
\(\eta\) \eta	**$\xi $ \xi **	\(\tau\) \tau

表 3: 大写希腊字母

\(\Gamma\) \Gamma	\(\Lambda\) \Lambda	\(\Sigma\) \Sigma	\(\Psi\) \Psi
\(\Delta\) \Delta	\(\Xi\) \Xi	\(\Upsilon\) \Upsilon	$ \Omega$ \Omega
\(\Theta\) \Theta	\(\Pi\) \Pi	\(\Phi\) \Phi

表 4: 数学字母

示例	代码
\(\mathrm{ABCdef}\)	\mathrm
\(\mathit{ABCdef}\)	\mathit
\(\mathcal{ABC}\)	\mathcal
\(\mathscr{ABC}\)	\mathscr
\(\mathfrak{ABCdef}\)	\mathfrak
\(\mathbb{ABC}\)	\mathbb

表 5: 运算符

示例	代码	示例	代码
\(\sum\)	\sum	$\prod $	\prod
$\bigcup $	\bigcup	\(\bigoplus\)	\bigoplus
$\bigvee $	\bigvee	\(\bigcap\)	\bigcap
\(\bigwedge\)	\bigwedge	\(\biguplus\)	\biguplus
\(\bigotimes\)	\bigotimes	\(\oint\)	\oint
\(\int\)	\int	\(\bigsqcup\)	\bigsqcup
\(\coprod\)	\coprod	\(\bigodot\)	\bigodot

表 6: 常用箭头

示例	代码	示例	代码	示例	代码
\(\leftarrow\)	\leftarrow	$\rightarrow $	\rightarrow	$\leftrightarrow $	\leftrightarrow
\(\longleftarrow\)	\longleftarrow	$\longrightarrow $	\longrightarrow	$\longleftrightarrow $	\longleftrightarrow
\(\Leftarrow\)	\Leftarrow	$\Rightarrow $	\Rightarrow	$\Leftrightarrow $	\Leftrightarrow
\(\Longleftarrow\)	\Longleftarrow	$\Longrightarrow $	\Longrightarrow	$\Longleftrightarrow $	\Longleftrightarrow
\(\uparrow\)	\uparrow	$\downarrow $	\downarrow	$\updownarrow $	\updownarrow

表 7: 其他常用符号

示例	代码	示例	代码
\(\therefore\)	\therefore	$\because $	\because
\(\leqslant\)	\leqslant	$\geqslant $	\geqslant
\(\thickapprox\)	\thickapprox	$\thicksim $	\thicksim
\(\neq\)	\neq	$\in $	\in
\(\pm\)	\pm	$\sqrt{2} $	\sqrt