符号类
希腊字母
| 符号 | 写法 |
|---|---|
| \(\alpha\) | \alpha |
| \(\beta\) | \beta |
| \(\gamma\) | \gamma |
| \(\delta \) | \delta |
| \(\Delta \) | \Delta |
| \(\epsilon\) | \epsilon |
| \(\varepsilon\) | \varepsilon |
| \(\zeta\) | \zeta |
| \(\eta\) | \eta |
| \(\theta \) | \theta |
| \(\Theta \) | \Theta |
| \(\vartheta\) | \vartheta |
| \(\iota\) | \iota |
| \(\kappa\) | \kappa |
| \(\lambda \) | \lambda |
| \(\Lambda \) | \Lambda |
| \(\mu\) | \mu |
| \(\nu\) | \nu |
| \(\xi \) | \xi |
| \(\Xi\) | \Xi |
| \(\pi\) | \pi |
| \(\Pi \) | \Pi |
| \(\varpi \) | \varpi |
| \(\rho \) | \rho |
| \(\varrho \) | \varrho |
| \(\sigma \) | \sigma |
| \(\Sigma \) | \Sigma |
| \(\varsigma \) | \varsigma |
| \(\tau \) | \tau |
| \(\upsilon \) | \upsilon |
| \(\Upsilon\) | \Upsilon |
| \(\phi \) | \phi |
| \(\Phi \) | \Phi |
| \(\varphi \) | \varphi |
| \(\chi \) | \chi |
| \(\psi \) | \psi |
| \(\Psi \) | \Psi |
| \(\omega \) | \omega |
| \(\Omega\) | \Omega |
运算符号
| 符号 | 写法 |
|---|---|
| \(x^2\) | x^2 |
| \(\theta_i\) | \theta_i |
| \(\frac{ x }{ y }\) | \frac{ x } |
| \(\sqrt{ x }\) | \sqrt |
| \(\partial J\) | \partial J |
| \(\sum_{k=1}^{m}\) | \sum_{k=1}^ |
| \(\int_{-\pi}^{\pi} x^2 {\rm d}x\) | \int_{-\pi}^{\pi} x^2 {\rm d}x |
| \(\iiiint\) | \iiiint |
| \(\oint\) | \oint |
| \(\infty\) | \infty |
| \(\nabla\) | \nabla |
| \(\lim\limits_{n \rightarrow +\infty} \frac{1}{n(n+1)}\) | \lim\limits_{n \rightarrow +\infty} \frac{1} |
| \(\prod_{i=0}^n \frac{1}{i^2}\) | \prod_{i=0}^n \frac{1} |
关系运算符
| 符号 | 写法 |
|---|---|
| \(\pm\) | \pm |
| \(\times\) | \times |
| \(\div\) | \div |
| \(\nmid\) | \nmid |
| \(\cdot\) | \cdot |
| \(\ast\) | \ast |
| \(\bigodot\) | \bigodot |
| \(\bigotimes\) | \bigotimes |
| \(\bigoplus\) | \bigoplus |
| \(\leq\) | \leq |
| \(\geq\) | \geq |
| \(\neq\) | \neq |
| \(\approx\) | \approx |
| \(\equiv\) | \equiv |
| \(\coprod\) | \coprod |
集合运算符
| 符号 | 写法 |
|---|---|
| \(\emptyset\) | \emptyset |
| \(\in\) | \in |
| \(\notin\) | \notin |
| \(\subset\) | \subset |
| \(\supset\) | \supset |
| \(\subseteq\) | \subseteq |
| \(\supseteq\) | \supseteq |
| \(\bigcap\) | \bigcap |
| \(\bigcup\) | \bigcup |
| \(\bigvee\) | \bigvee |
| \(\bigwedge\) | \bigwedge |
| \(\bigsqcup\) | \bigsqcup |
三角运算符
| 符号 | 写法 |
|---|---|
| \(\bot\) | \bot |
| \(\angle\) | \angle |
| \(30^\circ\) | 30^\circ |
| \(\sin\) | \sin |
| \(\cos\) | \cos |
| \(\tan\) | \tan |
| \(\cot\) | \cot |
| \(\sec\) | \sec |
| \(\csc\) | \csc |
逻辑运算符
| 符号 | 写法 |
|---|---|
| \(\because\) | \because |
| \(\therefore\) | \therefore |
| \(\forall\) | \forall |
| \(\exists\) | \exists |
| \(\not=\) | \not= |
| \(\not>\) | \not> |
| \(\not\subset\) | \not\subset |
戴帽符号
| 符号 | 写法 |
|---|---|
| \(\hat{y}\) | \hat |
| \(\check{y}\) | \check |
| \(\breve{y}\) | \breve |
连线符号
| 符号 | 写法 |
|---|---|
| \(\overline{a+b+c+d}\) | \overline |
| \(\underline{a+b+c+d}\) | \underline |
| \(\overbrace{a+\underbrace{b+c}_{1.0}+d}^{2.0}\) | \overbrace{a+\underbrace{b+c}_{1.0}+d}^ |
箭头符号
| 符号 | 写法 |
|---|---|
| \(\uparrow\) | \uparrow |
| \(\Uparrow\) | \Uparrow |
| \(\downarrow\) | \downarrow |
| \(\Downarrow\) | \Downarrow |
| \(\rightarrow\) | \rightarrow |
| \(\Rightarrow\) | \Rightarrow |
| \(\leftarrow\) | \leftarrow |
| \(\Leftarrow\) | \Leftarrow |
| \(\longleftarrow\) | \longleftarrow |
| \(\Longleftarrow\) | \Longleftarrow |
| \(\longrightarrow\) | \longrightarrow |
| \(\Longrightarrow\) | \Longrightarrow |
矩阵类
| 符号 | 写法 |
|---|---|
| \(\vec{ a }\) | \vec |
| $\left{ | |
| \begin | |
| a & b & c & d & e\ | |
| f & g & h & i & j \ | |
| k & l & m & n & o \ | |
| p & q & r & s & t | |
| \end | |
| \right}$ | \left{\begin{matrix}a & b & c & d & e\ f & g & h & i & j \ k & l & m & n & o \ p & q & r & s & t\end{matrix} \right} |
| $A= | |
| \left{ | |
| \begin | |
| a & b & c & d & e\ | |
| f & g & h & i & j \ | |
| k & l & m & n & o \ | |
| p & q & r & s & t | |
| \end | |
| \right}$ | A=\left{ \begin{matrix} a & b & c & d & e \ f & g & h & i & j \ k & l & m & n & o \ p & q & r & s & t \end{matrix}\right} |
| $A= | |
| \left{ | |
| \begin | |
| a & b & \cdots & e\ | |
| f & g & \cdots & j \ | |
| \vdots & \vdots & \ddots & \vdots \ | |
| p & q & \cdots & t | |
| \end | |
| \right}$ | A=\left{\begin{matrix} a & b & \cdots & e \ f & g & \cdots & j \ \vdots & \vdots & \ddots & \vdots \ p & q & \cdots & t \end{matrix}\right} |
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