![与案例对齐](https://linux22.com/image/448406/%E4%B8%8E%E6%A1%88%E4%BE%8B%E5%AF%B9%E9%BD%90.png)
答案1
答案2
像这样?
带有array
˙和multirow
包装:
\documentclass[border=3.141592, preview]{standalone}
\usepackage{array, multirow}
\begin{document}
\[\setlength\arraycolsep{2pt}
\begin{array}{rl@{}l@{\qquad}l}
F(x) = & xy & & hello world \\[1ex]
\multirow{2}{*}{$F(x) = $}
& \multirow{2}{*}{$\biggl\{$}
& x(n) & foo \\
& & x(n-1) & bar
\end{array}
\]
\end{document}