常见数学公式Markdown表示总结

下标与上标

1. 下标，x_1-->\(x_1\)
2. 上标，x^{1-->\(x^1\),x}{12}-->\(x^{12}\)

分数

--->\(\frac{1}{2}\)

求导

-->\(\frac{\partial J(\theta)}{\partial\theta_j}\)

数学符号

符号	代码	符号	代码
\(\alpha\)		\(\beta\)
\(\gamma\)		\(\delta\)
\(\Delta\)		\(\epsilon\)
\(\varepsilon\)		\(\zeta\)
\(\eta\)		\(\theta\)
\(\Theta\)		\(\vartheta\)
\(\iota\)		\(\pi\)
\(\phi\)		\(\psi\)
\(\Psi\)		\(\omega\)
\(\Omega\)		\(\chi\)
\(\rho\)		\(\omicron\)
\(\sigma\)		\(\Sigma\)
\(\nu\)		\(\xi\)
\(\tau\)		\(\lambda\)
\(\Lambda\)		\(\mu\)
\(\partial\)		\(\hat{y}\)
\(\check{y}\)		\(\breve{y}\)
\(\bigcup\)		\(\bigcap\)
\(\leq\)		\(\geq\)
\(\prod\)		\(\int\)
\(\iint\)		\(\oint\)
\(\overline{a}\)		\(\bar{x}\)	{x}

不同括号

{nk}----->$ {nk}$

{nk}---->$ {nk}$

{nk}--->$ {nk}$

--->\(\dbinom{n}{k}\)

矩阵

$$
\left[
 \begin{matrix}
   a & b & c & d & e\\
   f & g & h & i & j \\
   k & l & m & n & o \\
   p & q & r & s & t
  \end{matrix} 
\right]
$$

\[ \left[ \begin{matrix} a & b & c & d & e\\ f & g & h & i & j \\ k & l & m & n & o \\ p & q & r & s & t \end{matrix} \right] \]

开平方

--->\(\sqrt{a}\)

分段函数

$$
X(m,n)=\begin{cases}
x(n)\\
x(n-1)\\
x(n-1)
\end{cases}
$$

\(X(m,n)=\begin{cases}x(n)\\x(n-1)\\x(n-1)\end{cases}\)

待续

。。。