Latex常用表示

希腊字母

小写字母	语法	大写字母	实现
\(\alpha\)	\alpha	\(A\)	A
\(\beta\)	\beta	\(B\)	B
\(\gamma\)	\gamma	\(\Gamma\)	\Gamma
\(\delta\)	\delta	\(\Delta\)	\Delta
\(\epsilon\)	\epsilon	\(E\)	E
\(\varepsilon\)	\varepsilon
\(\zeta\)	\zeta	\(Z\)	Z
\(\eta\)	\eta	\(H\)	H
\(\theta\)	\theta	\(\Theta\)	\Theta
\(\vartheta\)	\vartheta
\(\iota\)	\iota	\(I\)	I
\(\kappa\)	\kappa	\(K\)	K
\(\lambda\)	\lambda	\(\Lambda\)	\Lambda
\(\mu\)	\mu	\(M\)	M
\(\nu\)	\nu	\(N\)	N
\(\xi\)	\xi	\(\Xi\)	\Xi
\(\omicron\)	\omicron	\(O\)	O
\(\pi\)	\pi	\(\Pi\)	\Pi
\(\varpi\)	\varpi
\(\rho\)	\rho	\(R\)	R
\(\varrho\)	\varrho
\(\sigma\)	\sigma	\(\Sigma\)	\Sigma
\(\varsigma\)	\varsigma
\(\tau\)	\tau	\(T\)	T
\(\upsilon\)	\upsilon
\(\phi\)	\phi	\(\Phi\)	\Phi
\(\varphi\)	\varphi
\(\chi\)	\chi	\(X\)	X
\(\psi\)	\psi	\(\Psi\)	\Psi
\(\omega\)	\omega	\(\Omega\)	\Omega

var开头的只有小写希腊字母，没有大写。

运算符符号

符号	实现
\(\sum\)	\sum
\(\prod\)	\prod
\(\int\)	\int
\(\oplus\)	\oplus
\(\otimes\)	\otimes
\(\times\)	\times
\(\cdot\)	\codt
\(\cap\)	\cap
\(\cup\)	\cup

关系符号

符号	实现
\(\le\)	\le
\(\ge\)	\ge
\(\ll\)	\ll
\(\gg\)	\gg
\(\equiv\)	\equiv
\(\subseteq\)	\subseteq
\(\supseteq\)	\supseteq
\(\subset\)	\subset
\(\supset\)	\supset

箭头符号

符号	实现
\(\Leftarrow\)	\Leftarrow
\(\Rightarrow\)	\Rightarrow
\(\Longleftrightarrow\)	\Longleftrightarrow

其他符号

符号	实现	含义
\(\infty\)	\infty	无穷
\(\exists\)	\exists	存在
\(\forall\)	\forall	任取
\(\ldots\)	\ldots	下三连点
\(\cdots\)	\cdots	中三连点
\(\vdots\)	\vdots	竖三连点
\(\ddots\)	\ddots	斜三连点
\(\overline{x}\)	\overline{x}	平均
\(\quad\)	\quad	空格