Re: [問題] 如何把矩陣某一列框起來

Try this


\begingroup
\renewcommand*{\arraystretch}{1.5}
\[
\left[
\begin{array}{rccl}
0&0&\cdots&0\\
\cline{1-4}
\multicolumn{1}{|c}{0}&0&\cdots&\multicolumn{1}{c|}{0}\\
\cline{1-4}
\vdots&\vdots&\ddots&\vdots\\
0&0&\cdots&0\\
\end{array}
\right]
\]
\endgroup
推 moun9:甚厲害了, 弄出來的框框真漂亮!感恩
→ moun9:可能太開心= =, 打錯字了!