求问latex中奇怪的矩阵怎么打

发布网友发布时间：2022-10-18 09:12

共1个回答

热心网友时间：2023-12-03 06:27

\documentclass{article}
\usepackage{amsmath,arydshln,multirow}
\begin{document}
\[
\begin{array}{c@{\hspace{-5pt}}l}
\begin{array}{c@{\hspace{5pt}}c@{\hspace{5pt}}c}
    \overbrace{\hphantom{\begin{array}{cccc}
      1 & \ddots & \ddots & 1 \end{array}}}^{\displaystyle n} &
    \overbrace{\hphantom{\begin{array}{cccc}
      1 & \ddots & \ddots & 1 \end{array}}}^{\displaystyle n} &
    \overbrace{\hphantom{1}}^{\displaystyle1}
\end{array} & \\
\left(\begin{array}{cccc;{2pt/2pt}cccc;{2pt/2pt}c}
    1 & & & & & & & & \\
    & \ddots & & & & \multicolumn{2}{c}{\multirow{2}{*}{\Huge0}} & &
      \multirow{2}{*}{\Huge0} \\
    & & \ddots & & & & & & \\
    & & & 1 & & & & & \\
    \hdashline[2pt/2pt]
    & & & & 1 & & \multicolumn{2}{c;{2pt/2pt}}{\multirow{2}{*}{\huge0}} & \\
    & \multicolumn{2}{c}{\multirow{2}{*}{\Huge0}} & & c & \ddots & & &
      \multirow{2}{*}{\Huge0} \\
    & & & & \vdots & \ddots & \ddots & & \\
    & & & & c & \cdots & c & 1 & \\
    \hdashline[2pt/2pt]
    a & \cdots & \cdots & a & b & \cdots & \cdots & b & 1
\end{array}\right) &
\begin{array}{l}
    \left.\vphantom{\begin{array}{c} 1 \\ \vdots \\ \vdots \\ 1 \end{array}}
      \right\}n \\
    \left.\vphantom{\begin{array}{c} 1 \\ \vdots \\ \vdots \\ 1 \end{array}}
      \right\}n \\
    \left.\vphantom{1}\right\}~1
\end{array}
\end{array}
\]
\end{document}