LaTeX公式Markdown速查

1. 常用希腊字母

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

2. 大写希腊字母

代码	渲染	代码	渲染
\Gamma	\(\Gamma\)	\Phi	\(\Phi\)
\Delta	\(\Delta\)	\Psi	\(\Psi\)
\Theta	\(\Theta\)	\Omega	\(\Omega\)
\Lambda	\(\Lambda\)	\O	\(\O\)
\Xi	\(\Xi\)	\Pi	\(\Pi\)
\Sigma	\(\Sigma\)	\Upsilon	\(\Upsilon\)

3. 其他符号

代码	渲染	代码	渲染	代码	渲染
\euro	\(\euro\)	\ll	\(\ll\)	\smile	\(\smile\)
\prec	\(\prec\)	\gg	\(\gg\)	\dashv	\(\dashv\)
\succ	\(\succ\)	\frown	\(\frown\)	\simeq	\(\simeq\)
\leq	\(\leq\)	\geqslant	\(\geqslant\)	\neq	\(\neq\)
\geq	\(\geq\)	\nless	\(\nless\)	\nleqslant	\(\nleqslant\)
\doteq	\(\doteq\)	\ngtr	\(\ngtr\)	\ngeqslant	\(\ngeqslant\)
\leqslant	\(\leqslant\)	\equiv	\(\equiv\)	\not\equiv	\(\not\equiv\)
\approx	\(\approx\)	\preceq	\(\preceq\)	\vdash	\(\vdash\)
\succeq	\(\succeq\)	\sim	\(\sim\)	\cong	\(\cong\)
\bowtie	\(\bowtie\)	\Join	\(\Join\)	\mid	\(\mid\)

代码	渲染	说明
\overset{\underset{\mathrm{def}}{}}{=}	\(\overset{\underset{\mathrm{def}}{}}{=}\)	定义

4. 上下结构

代码	渲染	说明
\prod	\(\prod\)
\sum \prod_{a}^{b}	\(\sum \prod_{a}^{b}\)
\sum_{a}^{b}	\(\sum_{a}^{b}\)
\sqrt{3}	\(\sqrt{3}\)
\sqrt[n]{x}	\(\sqrt[n]{x}\)
\widetilde{abc} \widehat{abc} \overleftarrow{abc}	\(\widetilde{abc} \widehat{abc} \overleftarrow{abc}\)
\overrightarrow{abc}	\(\overrightarrow{abc}\)
\overline{abc}	\(\overline{abc}\)	上划线
\underline{abc}	\(\underline{abc}\)	下划线
\overbrace{abc}	\(\overbrace{abc}\)	上边花括号
\underbrace{abc}	\(\underbrace{abc}\)	下边花括号
\overset{a}{abc}	\(\overset{a}{abc}\)	放上边
\underset{a}{abc}	\(\underset{a}{abc}\)	放下边

5. 上结构

代码	渲染
\ {a}'	\(\ {a}'\)
\ {a}''	\(\ {a}''\)
\dot{a}	\(\dot{a}\)
\ddot{a}	\(\ddot{a}\)
\hat{a}	\(\hat{a}\)
\check{a}	\(\check{a}\)
\grave{a}	\(\grave{a}\)
\acute{a}	\(\acute{a}\)
\tilde{a}\breve{a}\bar{c}\vec{c}	\(\tilde{a}\breve{a}\bar{c}\vec{c}\)
\not{a}	\(\not{a}\)
\ a^{\circ}	\(\ a^{\circ}\)

6. 集合操作

代码	渲染
\sqsubset	\(\sqsubset\)
\sqsupset	\(\sqsupset\)
\sqsubseteq	\(\sqsubseteq\)
\sqsupseteq	\(\sqsupseteq\)
\subset	\(\subset\)
\supset	\(\supset\)
\subseteq	\(\subseteq\)
\supseteq	\(\supseteq\)
\nsubseteq	\(\nsubseteq\)
\nsupseteq	\(\nsupseteq\)
\subseteqq	\(\subseteqq\)
\supseteqq	\(\supseteqq\)
\nsubseteq	\(\nsubseteq\)
\nsupseteqq	\(\nsupseteqq\)
\in	\(\in\)
\ni	\(\ni\)
\notin	\(\notin\)
\pm	\(\pm\)
\mp	\(\mp\)
\cap	\(\cap\)
\cup	\(\cup\)
\cdot	\(\cdot\)
\uplus	\(\uplus\)
\Cup	\(\Cup\)
\Cap	\(\Cap\)

7. 特殊符号

代码	渲染
\times	\(\times\)
\ast	\(\ast\)
\div	\(\div\)
\sqcap	\(\sqcap\)
\sqcup	\(\sqcup\)
\bigsqcup	\(\bigsqcup\)
\wedge	\(\wedge\)
\vee	\(\vee\)
\bigtriangleup	\(\bigtriangleup\)
\bigtriangledown	\(\bigtriangledown\)
\barwedge	\(\barwedge\)
\veebar	\(\veebar\)
\triangleleft	\(\triangleleft\)
\triangleright	\(\triangleright\)
\star	\(\star\)
\bigstar	\(\bigstar\)
\lozenge	\(\lozenge\)
\blacklozenge	\(\blacklozenge\)
\circ	\(\circ\)
\bullet	\(\bullet\)
\square	\(\square\)
\blacksquare	\(\blacksquare\)
\triangle	\(\triangle\)
\triangledown	\(\triangledown\)
\blacktriangle	\(\blacktriangle\)
\blacktriangledown	\(\blacktriangledown\)
\bigcirc	\(\bigcirc\)
\bigoplus	\(\bigoplus\)
\bigotimes	\(\bigotimes\)
\bigodot	\(\bigodot\)
\ominus	\(\ominus\)
\oslash	\(\oslash\)
\circleddash	\(\circleddash\)
\odot	\(\odot\)
\otimes	\(\otimes\)
\oplus	\(\oplus\)
\circledast	\(\circledast\)
\circledcirc	\(\circledcirc\)
\diamond	\(\diamond\)
\wr	\(\wr\)
\ddagger	\(\ddagger\)
\dagger	\(\dagger\)
\amalg	\(\amalg\)
\dotplus	\(\dotplus\)

8. 逻辑操作

代码	渲染	说明
\therefore	\(\therefore\)
\because	\(\because\)
\cdots	\(\cdots\)
\ddots	\(\ddots\)
\vdots	\(\vdots\)
\S	\(\S\)
\P	\(\P\)
\copyright	©	版权
\partial	\(\partial\)
\imath	\(\imath\)
\jmath	\(\jmath\)
\Re	\(\Re\)
\Im	\(\Im\)
\forall	\(\forall\)	任意
\exists	\(\exists\)	存在
\top	\(\top\)
\mathbb{P}	\(\mathbb{P}\)
\mathbb{N}	\(\mathbb{N}\)
\mathbb{Z}	\(\mathbb{Z}\)
\mathbb{I}	\(\mathbb{I}\)
\mathbb{Q}	\(\mathbb{Q}\)
\mathbb{R}	\(\mathbb{R}\)
\mathbb{C}	\(\mathbb{C}\)
\angle	\(\angle\)	角度
\measuredangle	\(\measuredangle\)
\sphericalangle	\(\sphericalangle\)
\varnothing	\(\varnothing\)	空集
\infty	\(\infty\)	无穷
\mho	\(\mho\)
\wp	\(\wp\)

9. 上下结构

代码	渲染	说明
x^{2}	\(x^{2}\)	指数
x_{i}	\(x_{i}\)	下标
x_{a}^{b}	\(x_{a}^{b}\)	上下标
{x_{a}}^{b}	\({x_{a}}^{b}\)	先下标后上标
_{a}^{b}\textrm{c}	\(_{a}^{b}\textrm{c}\)
\frac{a}{b}	\(\frac{a}{b}\)
x\tfrac{a}{b}	\(x\tfrac{a}{b}\)
\frac{\partial f}{\partial x}	\(\frac{\partial f}{\partial x}\)
\frac{\partial^2 f}{\partial x^2}	\(\frac{\partial^2 f}{\partial x^2}\)
\frac{\mathrm{d} f}{\mathrm{d} x}	\(\frac{\mathrm{d} f}{\mathrm{d} x}\)

10. 积分

代码	渲染	说明
\int	\(\int\)
\int_{a}^{b}	\(\int_{a}^{b}\)
\oint	$\oint $
\oint_{a}^{b}	\(\oint_{a}^{b}\)
\iint_{a}^{b}	\(\iint_{a}^{b}\)
\lim_{x\rightarrow 0}	\(\lim_{x\rightarrow 0}\)	逼近

11. 括号

代码	渲染	说明
\left ( \right )	\(\left ( \right )\)	圆括号
\left [ \right ]	\(\left [ \right ]\)	方括号
\left \langle \right \rangle	\(\left \langle \right \rangle\)
\left { \right }	\(\left \{ \right \}\)	花括号
\left \lfloor \right \rfloor	\(\left \lfloor \right \rfloor\)
\left | \right |	\(\left | \right |\)
\left \lceil \right \rceil	\(\left \lceil \right \rceil\)
\left { \right.	\(\left \{ \right.\)	左花括号
\left. \right }	\(\left. \right \}\)	右花括号

12. 多行

• (1) 多行组成的块

\begin{matrix}
 A&  B& \\ 
 C&  D& 
\end{matrix}

\[\begin{matrix} A& B& \\ C& D& \end{matrix} \]

---

• (2)矩阵

\begin{bmatrix}
 &  &  & \\ 
 &  &  & \\ 
 &  &  & 
\end{bmatrix}

\[\begin{bmatrix} & & & \\ & & & \\ & & & \end{bmatrix} \]

---

• (3)列向量

\binom{n}{r}

\[\binom{n}{r} \]

---

• (4) 多行多列

\begin{pmatrix}
 &  &  & \\ 
 &  &  & \\ 
 &  &  & 
\end{pmatrix}

\[\begin{pmatrix} & & & \\ & & & \\ & & & \end{pmatrix} \]

---

• (5) 小括号多行多列

\bigl(\begin{smallmatrix}
 &  &  & \\ 
 &  &  & \\ 
 &  &  & 
\end{smallmatrix}\bigr)

\[\bigl(\begin{smallmatrix} & & & \\ & & & \\ & & & \end{smallmatrix}\bigr) \]

---

• (6) 条件表达式

\begin{cases}
 & \text{ if } x>0 \\ 
 & \text{ if } x=0 
\end{cases}

\[\begin{cases} & \text{ if } x>0 \\ & \text{ if } x=0 \end{cases} \]

---

• (7) 行列式

\begin{vmatrix}
 &  & \\ 
 &  & 
\end{vmatrix}

\[\begin{vmatrix} & & \\ & & \end{vmatrix} \]

---

• (8)左右花括号

\begin{Bmatrix}
 &  & \\ 
 &  & 
\end{Bmatrix}

\[\begin{Bmatrix} & & \\ & & \end{Bmatrix} \]

---

• (9) 多行公式

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

在&符号处对齐

\[\begin{align*} &y=a+b+c \\ &+d+e \\ &+f \end{align*} \]

---

• (10) 矩阵

\begin{Vmatrix}
 &  & \\ 
 &  & 
\end{Vmatrix}

\[\begin{Vmatrix} & & \\ & & \end{Vmatrix} \]

---

• (11) 左花括号

\left\{\begin{matrix}
 &  & \\ 
 &  & 
\end{matrix}\right.

\[\left\{\begin{matrix} & & \\ & & \end{matrix}\right. \]

---

• (12) 右花括号

\left.\begin{matrix}
 &  &  & \\ 
 &  &  & \\ 
 &  &  & 
\end{matrix}\right\}

\[\left.\begin{matrix} & & & \\ & & & \\ & & & \end{matrix}\right\} \]

---

• (13)

\left.\begin{matrix}
 &  & \\ 
 &  & 
\end{matrix}\right|

\[\left.\begin{matrix} & & \\ & & \end{matrix}\right| \]

---

13. 混合编辑

• 公式中插入文本\mbox{}：

\[y = x^2 \; \mbox{(二次函数)} \]

• 公式中插入空格\, \; \quad \qquad间隔依次变宽：

代码	渲染	说明
ab	$$ ab $$
a\,b	$$ a\,b $$
a\;b	$$ a\;b $$
a\quad b	$$ a\quad b $$
a\qquad b	$$ a\qquad b $$

• 插入编号：
  使用\tag指令指定公式的具体编号，并使用\label指令埋下锚点。

如y=x^2 \tag{1.5a} \label{eq:test}：

\[y=x^{2} \tag{1.5a} \label{eq:test} \]

• 引用编号：
  使用\eqref指令引用前面埋下的锚点，\eqref{eq:test}将显示为：
  \[\eqref{eq:test} \]