参考链接：
https://blog.csdn.net/mingzhuo_126/article/details/82722455
https://www.cnblogs.com/144823836yj/p/10263070.html
https://zhuanlan.zhihu.com/p/262900046
https://blog.csdn.net/liyuanbhu/article/details/51473886
https://blog.csdn.net/luolang_103/article/details/81289529
https://blog.csdn.net/weixin_42301220/article/details/109817603
1.打开Typora选择数学模块
- 点击“段落”—>“公式块”
- 快捷键Ctrl+Shift+m
- “$$”+回车
以上三种方式都能打开数学公式的编辑栏，如下：
Typora可以使用行内公式，行内公式需要开启设置。
具体操作：文件→偏好设置→Markdown，勾选内联公式，重启typora。
输入，按Esc键会自动在后面加上一个，然后在这两个之间输入公式。
案例如下：
2. 添加数学公式
输出美观规范的数学公式，要清楚它们的格式和代码，在编辑栏中输入代码，对应的公式会在下面实时显示。
3.常用公式的代码
3.1.上/下标
| 算式 | Markdown |
|---|---|
| \(x^{2}\) | x^2 |
| \(y_1\) | y_1 |
| \(\overset{?}=\) | \overset{?}= (表达式上方插入符号) |
| \(\underset{0 \le j \le k-1}{\arg \min}\) | \underset{0 \le j \le k-1}{\arg \min} (表达式下方插入符号) |
3.2.分式
| 算式 | Markdown |
|---|---|
| 1/2 | 1/2 |
| $\frac{1}{2} $ | \frac{1}{2} |
3.3.点符号
| 算式 | Markdown |
|---|---|
| \(\cdots\) | \cdots |
| \(\cdot\) | \cdot |
| \(\vdots\) | \vdots |
| $ \ddots$ | \ddots |
3.4.开根号
| 算式 | Markdown |
|---|---|
| \(\sqrt{2}\) | \sqrt{2} |
| \(\sqrt[a]{b}\) | \sqrt[a]{b} |
3.5.矢量
| 算式 | Markdown |
|---|---|
| \(\vec{a}\) | \vec{a} |
3.6.积分
| 算式 | Markdown |
|---|---|
| \(\int{x}dx\) | \int{x}dx |
| \(\int_{1}^{2}{x}dx\) | \int_{1}^{2}{x}dx |
3.7.极限
| 算式 | Markdown |
|---|---|
| \(\lim{a+b}\) | \lim{a+b} |
| \(\lim_{n \rightarrow +\infty}\) | \lim_{n \rightarrow +\infty} |
3.8.累加
| 算式 | Markdown |
|---|---|
| \(\sum{a}\) | \sum{a} |
| \(\sum_{n=1}^{100}{a_n}\) | \sum_{n=1}^{100}{a_n} |
3.9.累乘
| 算式 | Markdown |
|---|---|
| \(\prod{x}\) | \prod{x} |
| \(\prod_{n=1}^{99}{x_n}\) | \prod_{n=1}^{99}{x_n} |
3.10.希腊字母
| 大写 | Markdown | 小写 | Markdown |
|---|---|---|---|
| \(A\) | A | \(\alpha\) | \alpha |
| \(B\) | B | \(\beta\) | \beta |
| \(\Gamma\) | \Gamma | \(\gamma\) | \gamma |
| \(\Delta\) | \Delta | \(\delta\) | \delta |
| \(E\) | E | \(\epsilon\) | \epsilon |
| \(\varepsilon\) | \varepsilon | ||
| \(Z\) | Z | \(\zeta\) | \zeta |
| \(H\) | H | \(\eta\) | \eta |
| \(\Theta\) | \Theta | \(\theta\) | \theta |
| \(I\) | I | \(\iota\) | \iota |
| \(K\) | K | \(\kappa\) | \kappa |
| \(\Lambda\) | \Lambda | \(\lambda\) | \lambda |
| \(M\) | M | \(\mu\) | \mu |
| \(N\) | N | \(\nu\) | \nu |
| \(\Xi\) | \Xi | \(\xi\) | \xi |
| \(O\) | O | \(\omicron\) | \omicron |
| \(\Pi\) | \Pi | \(\pi\) | \pi |
| \(P\) | P | \(\rho\) | \rho |
| \(\Sigma\) | \Sigma | \(\sigma\) | \sigma |
| \(T\) | T | \(\tau\) | \tau |
| \(\Upsilon\) | \Upsilon | \(\upsilon\) | \upsilon |
| \(\Phi\) | \Phi | \(\phi\) | \phi |
| \(\varphi\) | \varphi | ||
| \(X\) | X | \(\chi\) | \chi |
| \(\Psi\) | \Psi | \(\psi\) | \psi |
| \(\Omega\) | \Omega | \(\omega\) | \omega |
3.11.三角函数
| 三角函数 | Markdown |
|---|---|
| \(\sin\) | \sin |
| \(\arcsin\) | \arcsin |
| \(\tan\) | \tan |
3.12.对数函数
| 算式 | Markdown |
|---|---|
| \(\ln2\) | \ln2 |
| \(\log_28\) | \log_28 |
| \(\lg10\) | \lg10 |
3.13.关系运算符
| 运算符 | Markdown |
|---|---|
| \(\pm\) | \pm |
| \(\times\) | \times |
| \(\cdot\) | \cdot |
| \(\div\) | \div |
| \(\neq\) | \neq |
| \(\equiv\) | \equiv |
| \(\leq\) | \leq |
| \(\geq\) | \geq |
| \(\ll\) | \ll |
| \(\gg\) | \gg |
| \(\lll\) | \lll |
| \(\ggg\) | \ggg |
| \(<\) | < |
| \(>\) | > |
| \(\triangleq\) | \triangleq |
3.14.其它特殊字符
| 符号 | Markdown |
|---|---|
| \(\forall\) | \forall |
| \(\infty\) | \infty |
| \(\emptyset\) | \emptyset |
| \(\exists\) | \exists |
| \(\nabla\) | \nabla |
| \(\bot\) | \bot |
| \(\angle\) | \angle |
| \(\because\) | \because |
| \(\therefore\) | \therefore |
| \(\part\) | \part |
| \(\in\) | \in |
| \(\cup\) | \cup |
| \(\cap\) | \cap |
| \(\subset\) | \subset |
| \(\subseteq\) | \subseteq |
| \(\supset\) | \supset |
| \(\sim\) | \sim |
| \(\varnothing\) | \varnothing |
| \(\lnot\) | \lnot |
| \(\notin\) | \notin |
3.15.箭头符号
| 符号 | Markdown |
|---|---|
| \(\uparrow\) | \uparrow |
| \(\downarrow\) | \downarrow |
| \(\Uparrow\) | \Uparrow |
| \(\Downarrow\) | \Downarrow |
| \(\updownarrow\) | \updownarrow |
| \(\updownarrow\) | \updownarrow |
| \(\rightarrow\) | \rightarrow |
| \(\leftarrow\) | \leftarrow |
| \(\Rightarrow\) | \Rightarrow |
| \(\Leftarrow\) | \Leftarrow |
| \(\leftrightarrow\) | \leftrightarrow |
| \(\Leftrightarrow\) | \Leftrightarrow |
| \(\longrightarrow\) | \longrightarrow |
| \(\longleftarrow\) | \longleftarrow |
| \(\Longrightarrow\) | \Longrightarrow |
| \(\Longleftarrow\) | \Longleftarrow |
| \(\longleftrightarrow\) | \longleftrightarrow |
| \(\Longleftrightarrow\) | \Longleftrightarrow |
| \(\mapsto\) | \mapsto |
| \(\longmapsto\) | \longmapsto |
| \(\hookleftarrow\) | \hookleftarrow |
| \(\hookrightarrow\) | \hookrightarrow |
| \(\leftharpoonup\) | \leftharpoonup |
| \(\rightharpoonup\) | \rightharpoonup |
| \(\leftharpoondown\) | \leftharpoondown |
| \(\rightharpoondown\) | \rightharpoondown |
| \(\rightleftharpoons\) | \rightleftharpoons |
| \(\leadsto\) | \leadsto |
| \(\nearrow\) | \nearrow |
| \(\searrow\) | \searrow |
| \(\swarrow\) | \swarrow |
| \(\nwarrow\) | \nwarrow |
| \(\nleftarrow\) | \nleftarrow |
| \(\nrightarrow\) | \nrightarrow |
| \(\nLeftarrow\) | \nLeftarrow |
| \(\nRightarrow\) | \nRightarrow |
| \(\nleftrightarrow\) | \nleftrightarrow |
| \(\nLeftrightarrow\) | \nLeftrightarrow |
| \(\dashrightarrow\) | \dashrightarrow |
| \(\dashleftarrow\) | \dashleftarrow |
| \(\leftleftarrows\) | \leftleftarrows |
| \(\leftrightarrows\) | \leftrightarrows |
| \(\Lleftarrow\) | \Lleftarrow |
| \(\twoheadleftarrow\) | \twoheadleftarrow |
| \(\leftarrowtail\) | \leftarrowtail |
| \(\looparrowleft\) | \looparrowleft |
| \(\leftrightharpoons\) | \leftrightharpoons |
| \(\curvearrowleft\) | \curvearrowleft |
| \(\circlearrowleft\) | \circlearrowleft |
| \(\Lsh\) | \Lsh |
| \(\upuparrows\) | \upuparrows |
| \(\upharpoonleft\) | \upharpoonleft |
| \(\downharpoonleft\) | \downharpoonleft |
| \(\multimap\) | \multimap |
| \(\leftrightsquigarrow\) | \leftrightsquigarrow |
| \(\rightrightarrows\) | \rightrightarrows |
| \(\rightleftarrows\) | \rightleftarrows |
| \(\rightrightarrows\) | \rightrightarrows |
| \(\rightleftarrows\) | \rightleftarrows |
| \(\twoheadrightarrow\) | \twoheadrightarrow |
| \(\rightarrowtail\) | \rightarrowtail |
| \(\looparrowright\) | \looparrowright |
| \(\rightleftharpoons\) | \rightleftharpoons |
| \(\curvearrowright\) | \curvearrowright |
| \(\circlearrowright\) | \circlearrowright |
| \(\Rsh\) | \Rsh |
| \(\downdownarrows\) | \downdownarrows |
| \(\upharpoonright\) | \upharpoonright |
| \(\downharpoonright\) | \downharpoonright |
| \(\rightsquigarrow\) | \rightsquigarrow |
使用\\ 表示换行
3.16.戴帽符号
| 符号 | Markdown |
|---|---|
| \(\hat{x}\) | \hat{x} |
| \(\tilde{x}\) | \tilde{x} |
| \(\check{x}\) | \check{x} |
| \(\grave{x}\) | \grave{x} |
| \(\bar{x}\) | \bar{x} |
| \(\widehat{xy}\) | \widehat{xy} |
| \(\widetilde{xyz}\) | \widetilde{xyz} |
| \(\breve{x}\) | \breve{x} |
| \(\acute{x}\) | \acute{x} |
| \(\dot{x}\) | \dot{x} |
3.17.导数相关符号
| 符号 | latex语法 | 形状 |
|---|---|---|
| 偏导符号 | \partial x | \(\partial x\) |
| 求导符号 | \mathrm{d} x | \(\mathrm{d} x\) |
| 撇形式的求导符号 | x^{’} | \(x^{’}\) |
| 点形式的求导符号 | \dot x | \(\dot x\) |
| 点形式的求导符号(几个点就是几个d) | \ddot x | \(\ddot x\) |
| 全微分算子 | \nabla f | $ \nabla f$ |
4.字体样式
| 样式 | latex语法 | 形状 |
|---|---|---|
| 粗体 | \bold | \(\bold B\) |
| 斜体 | \it | \(\it B\) |
| 正体 | \rm | \(\rm B\) |
| 花体 | \mathcal | \(\mathcal B\) |
| 数集 | \mathbb | \(\mathbb B\) |
| 粗体花体 | \pmb | \(\pmb B\) |
5.补充
花括号
\[c(u)=\begin{cases} \sqrt\frac{1}{N}，u=0\\ \sqrt\frac{2}{N}， u\neq0\end{cases} \]c(u)=\begin{cases} \sqrt\frac{1}{N}，u=0\\ \sqrt\frac{2}{N}， u\neq0\end{cases}
空格
\[a \quad b \\ a\ b \]a \quad b #4个空格
a\ b #小空格
矩阵
\[a = \left[ \matrix{ \alpha_1 & test1\\ \alpha_2 & test2\\ \alpha_3 & test3 } \right] \]a = \left[
\matrix{
\alpha_1 & test1\\
\alpha_2 & test2\\
\alpha_3 & test3
}
\right]
