LaTeX 表达式
行内公式与块级公式
行内公式：\(a^{x}\) \(x^2\) \(y_1 x_1 x_2\)
块级公式：
\[a^2+b=c\]
常用字符
| 算式 |
LaTeX |
| \(\cdots\) |
\cdots |
| \(^{\circ}\) |
^{\circ} |
| \(\pi\) |
\pi |
| \(\infty\) |
\infty |
| \(\theta\) |
\theta |
| \(\in\) |
\in |
| \(\notin\) |
\notin |
| \(= \neq\) |
= \neq |
| \(\pm\) |
\pm |
| \(\times\) |
\times |
| \(\cdot\) |
\cdot |
| \(\div\) |
\div |
| \(\le\)\(\ge\) |
\le \ge |
| \(< >\) |
<> |
| \(\angle\) |
\angle |
| \(\because\) \(\therefore\) |
\because \therefore |
| \(( \big( \Big( \bigg( \Bigg(\) |
( \big( \Big( \bigg( \Bigg( |
常用公式（用$$包含）
指数&下标
| 算式 |
LaTeX |
| \(x^2\) |
x^2 |
| \(x_2\) |
x_2 |
分式
| 算式 |
LaTeX |
| \(1/2\) |
½ |
| \(\frac{1}{2}\) |
\frac{1}{2} |
根号
| 算式 |
LaTeX |
| \(\sqrt{2}\) |
\sqrt{2} |
| \(\sqrt[3]{x}\) |
\sqrt[3]{x} |
矢量
| 算式 |
LaTeX |
| \(\vec{a}\) |
\vec{a} |
积分
| 算式 |
LaTeX |
| \(\int{x}dx\) |
\int{x}dx |
| \(\int_{1}^{2}{x}dx\) |
\int_{1}^{2}{x}dx |
| \(\int\frac{x}{4+x^2}dx\) |
\int\frac{x}{4+x^2}dx |
导数
| 算式 |
LaTeX |
| \(f'(x)=xe^{\frac{x}{2}}\) |
f'(x)=xe^{\frac{x}{2}} |
| \(y''\) |
y'' |
极限
| 算式 |
LaTeX |
| \(\lim{a+b}\) |
\lim{a+b} |
| \(lim_{n\rightarrow+\infty}\) |
lim_{n\rightarrow+\infty} |
| \(lim_{x\rightarrow1}\frac{e^x-e}{\ln(x)}\) |
lim_{x\rightarrow1}\frac{e^x-e}{\ln(x)} |
累加
| 算式 |
LaTeX |
| \(\sum{a}\) |
\sum{a} |
| \(\sum_{n=1}^{100}{a_n}\) |
\sum_{n=1}^{100}{a_n} |
累乘
| 算式 |
LaTeX |
| \(\prod{x}\) |
\prod{x} |
| \(\prod_{n=1}^{99}{x_n}\) |
\prod_{n=1}^{99}{x_n} |
函数
| 算式 |
LaTeX |
| \(\ln2\) |
\ln2 |
| \(\log_{2}8\) |
\log_{2}8 |
| \(\lg10\) |
\lg10 |
| \(\sin(x^2+1)\) |
\sin(x^2+1) |
多行算式
\[
f(x)=\begin{cases} x,x<1\\ \frac{1}{1+x},x\ge1 \end{cases}
\]
\[
\begin{aligned}
a&=b+c \\
d+e&=f
\end{aligned}
\]
参考