9-10-4.tex

需要通过验证才能下载！希望大家多多合作！否则不能下载！请谅解！

% 9-10-4.tex
\documentclass{article}
\usepackage{amsmath}
\usepackage{CJK}
\begin{document}
\begin{CJK*}{GBK}{song}
\CJKtilde
\begin{equation}
\begin{aligned} a&=b+c \\ d&=bb+cc \end{aligned}
\Longrightarrow
\begin{gathered}[b] A=aa+bb \\ D=c+f \end{gathered}
\Longrightarrow
\begin{aligned}[t] X&=A+aa \\ Y&=D+d\end{aligned}
\end{equation}

\begin{equation*}
\left.\begin{aligned}
B'&=-\partial\times E \\ E'&=\partial\times B-4\pi j
\end{aligned} \right\} \qquad\text{ Maxwell 方程}
\end{equation*}

\begin{equation}
f(x)=\begin{cases}
1 & -1<x<1 \\ 0 & \text{其他~$x$}
\end{cases}
\end{equation}
\end{CJK*}
\end{document}