1、启用数学公式的支持
博客园默认不启用,需要按以下步骤启用:博客的管理界面 -> 选项 -> 启用数学公式支持 -> SAVE
要用公式的时候,用 $
将公式包围。若要输入多行,则用一对 $$
包围。
例如:
$$
\rho = \sqrt{(\Delta x)^{2}+(\Delta y)^{2}} \\
\lim\limits_{x \rightarrow x_{0}} f(x) = f(x_{0})
$$
效果为:
\[ \rho = \sqrt{(\Delta x)^{2}+(\Delta y)^{2}} \\ \lim\limits_{x \rightarrow x_{0}} f(x) = f(x_{0}) \]
最后的双斜杠表示换行
2、 部分LaTeX符号
在线测试:MathJax
符号 | 效果展示 |
---|---|
$a^{2}$ | \(a^{2}\) |
$a_{2}$ | \(a_{2}\) |
$a_{b}^{c}$ | \(a_{b}^{c}\) |
$\sqrt[n]{2}$ | \(\sqrt[n]{2}\) |
$\vec a$ | \(\vec a\) |
$\overrightarrow{AB}$ | \(\overrightarrow{AB}\) |
$\frac{a}{b+c}$ | \(\frac{a}{b+c}\) |
$\sum\limits_{i=1}^{n}$ | \(\sum\limits_{i=1}^{n}\) |
$\prod\limits_{i=1}^{n}$ | \(\prod\limits_{i=1}^{n}\) |
$\int_{a}^{b}$ | \(\int_{a}^{b}\) |
$\iint_{a}^{b}$ | \(\iint_{a}^{b}\) |
$\oint_{a}^{b}$ | \(\oint_{a}^{b}\) |
$\lim\limits_{x \rightarrow 0} \frac{sin x}{x} = 1$ | \(\lim\limits_{x \rightarrow 0} \frac{sin x}{x} = 1\) |
$\lg$ | \(\lg\) |
$\ln$ | \(\ln\) |
$\log$ | \(\log\) |
$\exp$ | \(\exp\) |
$\thicksim$ | \(\thicksim\) |
$\simeq$ | \(\simeq\) |
$\approx$ | \(\approx\) |
$\equiv$ | \(\equiv\) |
$\leqslant$ | \(\leqslant\) |
$\geqslant$ | \(\geqslant\) |
$\neq$ | \(\neq\) |
$\pm$ | \(\pm\) |
$\mp$ | \(\mp\) |
$\div$ | \(\div\) |
$\triangleq$ | \(\triangleq\) |
$\because$ | \(\because\) |
$\therefore$ | \(\therefore\) |
$\Leftarrow$ | \(\Leftarrow\) |
$\Rightarrow$ | \(\Rightarrow\) |
$\Leftrightarrow$ | \(\Leftrightarrow\) |
$\nLeftarrow$ | \(\nLeftarrow\) |
$\nRightarrow$ | \(\nRightarrow\) |
$\nLeftrightarrow$ | \(\nLeftrightarrow\) |
$\infty$ | \(\infty\) |
$\partial$ | \(\partial\) |
$\prime$ | \(\prime\) |
$\varnothing$ | \(\varnothing\) |
$\forall$ | \(\forall\) |
$\exists$ | \(\exists\) |
$\triangle$ | \(\triangle\) |
$\overline{m+n}$ | \(\overline{m+n}\) |
$\underline{m+n}$ | \(\underline{m+n}\) |
$\overbrace{a+b}_{2}$ | \(\overbrace{a+b}^{2}\) |
$\underbrace{a+b}_{2}$ | \(\underbrace{a+b}_{2}\) |
$\cdot$ | \(\cdot\) |
希腊字母
符号 | 效果 | 符号 | 效果 |
---|---|---|---|
$\alpha$ | \(\alpha\) | ||
$\beta$ | \(\beta\) | ||
$\gamma$ | \(\gamma\) | $\Gamma$ | \(\Gamma\) |
$\delta$ | \(\delta\) | $\Delta$ | \(\Delta\) |
$\epsilon$ | \(\epsilon\) | ||
$\varepsilon$ | \(\varepsilon\) | ||
$\eta$ | \(\eta\) | ||
$\theta$ | \(\theta\) | ||
$\lambda$ | \(\lambda\) | $\Lambda$ | \(\Lambda\) |
$\mu$ | \(\mu\) | ||
$\nu$ | \(\nu\) | ||
$\xi$ | \(\xi\) | ||
$\pi$ | \(\pi\) | $\Pi$ | \(\Pi\) |
$\rho$ | \(\rho\) | ||
$\sigma$ | \(\sigma\) | $\Sigma$ | \(\Sigma\) |
$\tau$ | \(\tau\) | ||
$\upsilon$ | \(\upsilon\) | ||
$\phi$ | \(\phi\) | ||
$\varphi$ | \(\varphi\) | ||
$\chi$ | \(\chi\) | ||
$\psi$ | \(\psi\) | $\Psi$ | \(\Psi\) |
$\omega$ | \(\omega\) | $\Omega$ | \(\Omega\) |
参考:Latex符号对应表