Markdown添加数学公式符号

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 }{ y }
\(\sqrt{ x }\)	\sqrt{ x }
\(\partial J\)	\partial J
\(\sum_{k=1}^{m}\)	\sum_{k=1}^{m}
\(\int_{-\pi}^{\pi} x^2 {\rm d}x\)	\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}{n(n+1)}
\(\prod_{i=0}^n \frac{1}{i^2}\)	\prod_{i=0}^n \frac{1}{i^2}

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{y}
\(\check{y}\)	\check{y}
\(\breve{y}\)	\breve{y}

连线符号

符号	写法
\(\overline{a+b+c+d}\)	\overline{a+b+c+d}
\(\underline{a+b+c+d}\)	\underline{a+b+c+d}
\(\overbrace{a+\underbrace{b+c}_{1.0}+d}^{2.0}\)	\overbrace{a+\underbrace{b+c}_{1.0}+d}^{2.0}

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{ a }
\(\left\{ \begin{matrix} a & b & c & d & e\\ f & g & h & i & j \\ k & l & m & n & o \\ p & q & r & s & t \end{matrix} \right\}\)	\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}
\(A= \left\{ \begin{matrix} a & b & c & d & e\\ f & g & h & i & j \\ k & l & m & n & o \\ p & q & r & s & t \end{matrix} \right\}\)	A=\left{ \begin{matrix} a & b & c & d & e \ f & g & h & i & j \ k & l & m & n & o \ p & q & r & s & t \end{matrix}\right}
\(A= \left\{ \begin{matrix} a & b & \cdots & e\\ f & g & \cdots & j \\ \vdots & \vdots & \ddots & \vdots \\ p & q & \cdots & t \end{matrix} \right\}\)	A=\left{\begin{matrix} a & b & \cdots & e \ f & g & \cdots & j \ \vdots & \vdots & \ddots & \vdots \ p & q & \cdots & t \end{matrix}\right}