LaTex · markdown | 如何写矩阵和大公式

1

\left[\begin{array}{c}
	a & b \\
	c & d
\end{array}\right]

效果：

$$\left[\begin{array}{cc}a& b\\ c& d\end{array}\right]$$

2

\min_{T_t^{set}}J=\lim_{N\rarr\infin}E\bigg\{\sum_{t=0}^{N-1}\Delta t\cdot P_t(T_t^{set},T_t^{sup})\bigg\}
\\
s.t.\left\{\begin{array}{c}
	[\boldsymbol  T^{out}, T^{sup}]_{t+1}
	=
	f([\boldsymbol  T^{out}, T^{sup}]_{t}, \boldsymbol H_{t}^{ite}, T_{t}^{set} )
	\\
	T^{out}_{min} \le T^{out} \le T^{out}_{max} \\
	0 \le H_{t}^{ite} \le 1
\end{array}\right.
\tag 4

效果：

$$\underset{T_t^{set}}{min}J=\underset{N\to \mathrm{\infty }}{lim}E\{\sum _{t=0}^{N-1}\mathrm{\Delta }t\cdot P_t(T_t^{set},T_t^{sup})\}$$

$$\begin{array}{}\text{(4)}& s.t.\{\begin{array}{c}[{\mathit{T}}^{out},T^{sup}{]}_{t+1}=f([{\mathit{T}}^{out},T^{sup}{]}_t,{\mathit{H}}_t^{ite},T_t^{set})\\ T_{min}^{out}\le T^{out}\le T_{max}^{out}\\ 0\le H_t^{ite}\le 1\end{array}\end{array}$$