常用数学符号
| 符号 | 语法 | 符号 | 语法 |
|---|---|---|---|
| \(\infty\) | \infty | \(\vec{s}\) | \vec{s} |
| \(\dot{a}\) | \dot{a} | \(\ddot{a}\) | \ddot{a} |
| \(\rightarrow\) | \righrarrow | \(\Rightarrow\) | \Rightarrow |
| \(\ldots\) | \ldots | \(\cdots\) | \cdots |
| \(\vdots\) | \vdots | \(\ddots\) | \ddots |
| \(\geq\) | \geq | \(\leq\) | \leq |
| \(\neq\) | \neq | \(\approx\) | \approx |
| \(\equiv\) | \equiv | \(\in\) | \in |
| \(\notin\) | \notin | \(\subset\) | \subset |
| \(\supset\) | \supset | \(\subseteq\) | \subseteq |
| \(\subsetneq\) | \subsetneq | \(\cup\) | \cup |
| \(\cap\) | \cap | \(\bigodot\) | \bigodot |
| \(\bigotimes\) | \bigotimes | \(\emptyset\) | \emptyset |
| \(\R\) | \R | \(\Z\) | \Z |
| \(\times\) | \times | \(\div\) | \div |
| \(\pm\) | \pm | \(\mp\) | \mp |
| \(\cdot\) | \cdot | \(\ast\) | \ast |
| \(\underline{apple}\) | \underline{apple} | \(\overline{x+y}\) | \overline{x+y} |
| \(\overbrace{a+b+c}^{3.0}\) | \overbrace{a+b+c}^{3.0} | \(\underbrace{a+b}\_{2}\) | \underbrace{a+b}_2 |
| \(\mbox{汉字}\) | \mbox{汉字} | \(\prime\) | \prime |
| \(\iint\) | \iint | \(\iiint\) | \iiint |
| \(\oint\) | \oint | \(\partial\) | \partial |
| \(\lceil{a}\rceil\) | \lceil {a} \rceil | \(\lfloor{b}\rfloor\) | \lfloor {b} \rfloor |
| \(a\quad b\) | a\quad b | \(a\qquad b\) | a\qquad b |
| \(a\;b\) | a;b | \(\bigg(\quad \Bigg]\) | \bigg( \quad \Bigg] |
| \(\langle{a,b}\rangle\) | \langle{a,b}\rangle |
常用运算
极限：\displaystyle \lim_{x_\to \infty}{\frac{3x^2+2}{4x^2+3x+1}}\tag{1} \lim
积分：\displaystyle \int_{0}^{\pi}{(sinx+cosx)dx}\tag{2} \int
求和：\displaystyle\sum_{i=0}^n{i^2+i}\tag{3} \sum
开方：\sqrt[3]{x^2+3x}\tag{4} \sqrt
组合：{n+1\choose k}={n\choose k}+{n\choose k-1}\tag{5} \choose
矩阵：
\left(\begin{matrix} &1 &2 &\cdots &5\\ &6 &7 &\cdots &10\\ &\vdots &\vdots &\ddots &\vdots\\ &16 &17 &\cdots &20 \end{matrix}\right)
( \begin{matrix}& & &\\& & & \end{martix} )
希腊字母
大写只需将首字母换为大写即可
\alpha \beta \gamma \delta \zeta \eta \theta \epsilon
\kappa \lambda \mu \nu \xi \pi \rho \sigma
\phi \varphi \psi \omega \varepsilon
$$ \alpha\quad\beta\quad\gamma\quad\delta\quad\zeta\quad\eta\quad\theta\quad\epsilon\\\kappa\quad\lambda\quad\mu\quad\nu\quad\xi\quad\pi\quad\rho\quad\sigma\\ \phi\quad\varphi\quad\psi\quad\omega\quad\varepsilon $$$$ \Alpha\quad\Beta\quad\Gamma\quad\Delta\quad\Zeta\quad\Eta\quad\Theta\quad\Epsilon\\\Kappa\quad\Lambda\quad\Mu\quad\Nu\quad\Xi\quad\Pi\quad\Rho\quad\Sigma\\ \Phi\quad\varphi\quad\Psi\quad\Omega\quad\varepsilon $$