markdown公式编辑

1. 插入公式

大写转义符号	小写转义符号	大写效果	小写效果
	\alpha		α
	\beta		β
\Gamma	\gamma	Γ	γ
\Delta	\delta	Δ	δ
\Epsilon	\epsilon		ϵ
	\zeta		ζ
	\eta		η
\Theta	\theta	Θ	θ
\Lambda	\lambda	Λ	λ
	\mu		μ
	\nu		ν
\Xi	\xi	Ξ	ξ
\Pi	\pi	Π	π
	\rho		ρ
\Sigma	\sigma	Σ	σ
\Phi	\phi	Φ	ϕ
\Psi	\psi	Ψ	ψ
	\chi		χ
\Omega	\omega	Ω	ω

常见数学符号同样用\进行转义， $L(f)=\sum_{i=0}^N(\tilde{y_i}-y_i)=\sum_{i=0}^N(wx_i+b-y_i)^2$
常用数学符号

转义符号	效果
\log_{x}y = \arccos z	$\log_{x}y = \arccos z$
\frac{a} {b}	$\frac{a} {b}$
_{a}^{b}\textrm{C}	$_{a}^{b}\textrm{C}$
\frac{\partial {z_x}}{\partial x}	$\frac{\partial {z_x}}{\partial x}$
\frac{\partial^2 {x}}{\partial x^2}	$\frac{\partial^2 {x}}{\partial x^2}$
\frac{\mathrm{d} y}{\mathrm{d} x}	$\frac{\mathrm{d} y}{\mathrm{d} x}$
\int x	$\int x$
\int_{a}^{b}x	$\int_{a}^{b}x$
\oint a	$\oint a$
\oint_{a}^{b}C	$\oint_{a}^{b}C$
\iint_{a}^{v}C	$\iint_{a}^{v}C$
\bigcap A	$\bigcap A$
\bigcap_{a}^{b}C	$\bigcap_{a}^{b}C$
\bigcup c	$\bigcup c$
\bigcup_{a}^{b}C	$\bigcup_{a}^{b}C$
\lim_{c}X	$\lim_{c}X$
\sum a	$\sum a$
\sum_{a}^{b}C	$\sum_{a}^{b}C$
\sqrt{X}	$\sqrt{X}$
\sqrt[a]{X}	$\sqrt[a]{X}$
\prod X	$\prod X$
\prod_{a}^{b} X	$\prod_{a}^{b} X$
\coprod X	$\coprod X$
\coprod_{a}^{b} X	$\coprod_{a}^{b} X$
\left [ a \right ]	$\left [ a \right ]$
\left ( a\right )	$\left ( a\right )$
\left \langle a \right \rangle	$\left \langle a \right \rangle$
\left \lfloor a \right \rfloor	$\left \lfloor a \right \rfloor$
\left \lceil a \right \rceil	$\left \lceil a \right \rceil$
\in A	$\in A$
\supseteqq A	$\supseteqq A$
\vec{a}	$\vec{a}$
\begin{bmatrix}x_{11} &x_{12}&…&x_{1d}&1\x_{21} &x_{22}&…&x_{2d}&1\…&…&…&…&…\x_{n1} &x_{n2}&…&x_{nd}&1\end{bmatrix}	$\begin{bmatrix}x_{11} &x_{12}&...&x_{1d}&1\\x_{21} &x_{22}&...&x_{2d}&1\\...&...&...&...&...\\x_{n1} &x_{n2}&...&x_{nd}&1\end{bmatrix}$
\underset{w}{min}	$\underset{w}{min}$
\widehat x	$\widehat x$
\boldsymbol X	$\boldsymbol X$
\bigodot	$\bigodot$
\odot	$\odot$