我想创建一个具有索引（左侧和顶部位置）以及总列和行（底部和右侧位置）的矩阵。我尝试过：
\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\begin{document}
\begin{table}
\begin{center}
\begin{tabular}{c c c c }
% &&~~~$ \begin{array}{ccccccccccc}
&&$ \begin{array}{lllllllllllllllll}
1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11
\end{array}$&\\
\\
$M^2$ =& $\begin{array}{c}
1 \\ 2 \\ 3 \\ 4 \\ 5 \\ 6 \\ 7 \\ 8 \\ 9 \\ 10 \\ 11
\end{array}$
& $\left( \begin{array}{lllllllllllllllll}
5 & 1 & 3 & 7 & 6 & 5 & 5 & 3 & 4 & 5 & 6 \\
6 & 2 & 1 & 7 & 6 & 4 & 4 & 2 & 2 & 6 & 5 \\
3 & 2 & 2 & 5 & 4 & 3 & 5 & 2 & 3 & 4 & 4 \\
5 & 3 & 3 & 8 & 6 & 4 & 5 & 1 & 2 & 5 & 5 \\
3 & 1 & 1 & 2 & 3 & 2 & 3 & 2 & 3 & 2 & 2 \\
2 & 0 & 1 & 1 & 2 & 2 & 1 & 1 & 1 & 2 & 2 \\
4 & 2 & 2 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 \\
1 & 1 & 2 & 3 & 3 & 3 & 3 & 2 & 2 & 3 & 4 \\
4 & 2 & 3 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 \\
5 & 2 & 2 & 7 & 6 & 5 & 5 & 2 & 2 & 7 & 6 \\
5 & 2 & 4 & 7 & 7 & 6 & 5 & 2 & 3 & 5 & 7 \\
\end{array}\right)$&
$\begin{array}{c}
50 \\ 45 \\ 37 \\ 47 \\ 24 \\ 15 \\ 43 \\ 27 \\ 44 \\ 49 \\ 53 %rowSums
\end{array}$\\
\\
&&$ \begin{array}{lllllllllllllllll}
43 & 18 & 24 & 59 & 53 & 42 & 46 & 21 & 28 & 49 & 51 %colSums
\end{array}$&\\
\end{tabular}
\end{center}
\end{table}
\end{document}
但是顶部和底部的索引/总和与矩阵不对齐...我该怎么做？
答案1
借助blkarray：
% arara: pdflatex
\documentclass{article}
\usepackage{blkarray}
\usepackage{xcolor}
\newcommand*{\matindex}[1]{\mbox{\scriptsize#1}}
\newcommand*{\matsum}[1]{\color{red} #1}
\begin{document}
\[
M^2 =
\begin{blockarray}{*{13}{c}}
& \matindex1 & \matindex2 & \matindex3 & \matindex4 & \matindex5 & \matindex6 & \matindex7 & \matindex8 & \matindex9 & \matindex{10} & \matindex{11} & \\
\begin{block}{r(*{11}{c})c}
\matindex1 & 5 & 1 & 3 & 7 & 6 & 5 & 5 & 3 & 4 & 5 & 6 & \matsum{50} \\
\matindex2 & 6 & 2 & 1 & 7 & 6 & 4 & 4 & 2 & 2 & 6 & 5 & \matsum{45} \\
\matindex3 & 3 & 2 & 2 & 5 & 4 & 3 & 5 & 2 & 3 & 4 & 4 & \matsum{37} \\
\matindex4 & 5 & 3 & 3 & 8 & 6 & 4 & 5 & 1 & 2 & 5 & 5 & \matsum{47} \\
\matindex5 & 3 & 1 & 1 & 2 & 3 & 2 & 3 & 2 & 3 & 2 & 2 & \matsum{24} \\
\matindex6 & 2 & 0 & 1 & 1 & 2 & 2 & 1 & 1 & 1 & 2 & 2 & \matsum{15} \\
\matindex7 & 4 & 2 & 2 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 & \matsum{43} \\
\matindex8 & 1 & 1 & 2 & 3 & 3 & 3 & 3 & 2 & 2 & 3 & 4 & \matsum{27} \\
\matindex9 & 4 & 2 & 3 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 & \matsum{44} \\
\matindex{10} & 5 & 2 & 2 & 7 & 6 & 5 & 5 & 2 & 2 & 7 & 6 & \matsum{49} \\
\matindex{11} & 5 & 2 & 4 & 7 & 7 & 6 & 5 & 2 & 3 & 5 & 7 & \matsum{53} \\
\end{block}
& \matsum{4}3 & \matsum{18} & \matsum{24} & \matsum{59} & \matsum{53} & \matsum{42} & \matsum{46} & \matsum{21} & \matsum{28} & \matsum{49} & \matsum{51} & \\
\end{blockarray}
\]
\end{document}
答案2
bigdelim下面是使用和multirow包并执行命令的 MWE \bigdelim：
\documentclass{article}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{bigdelim}
\usepackage{multirow}
\begin{document}
\begin{center}
$M^2=\quad%
\begin{array}{@{}cl@{\hspace{0.5em}}*{11}{c}@{\hspace{0.5em}}rr}
& & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11 & & \\\noalign{\vskip1ex}
1 & \ldelim({11}{10pt} & 5 & 1 & 3 & 7 & 6 & 5 & 5 & 3 & 4 & 5 & 6 & \rdelim){11}{10pt}& 50 \\
2 & & 6 & 2 & 1 & 7 & 6 & 4 & 4 & 2 & 2 & 6 & 5 & & 45 \\
3 & & 3 & 2 & 2 & 5 & 4 & 3 & 5 & 2 & 3 & 4 & 4 & & 37 \\
4 & & 5 & 3 & 3 & 8 & 6 & 4 & 5 & 1 & 2 & 5 & 5 & & 47 \\
5 & & 3 & 1 & 1 & 2 & 3 & 2 & 3 & 2 & 3 & 2 & 2 & & 24 \\
6 & & 2 & 0 & 1 & 1 & 2 & 2 & 1 & 1 & 1 & 2 & 2 & & 15 \\
7 & & 4 & 2 & 2 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 & & 43 \\
8 & & 1 & 1 & 2 & 3 & 3 & 3 & 3 & 2 & 2 & 3 & 4 & & 27 \\
9 & & 4 & 2 & 3 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 & & 44 \\
10 & & 5 & 2 & 2 & 7 & 6 & 5 & 5 & 2 & 2 & 7 & 6 & & 49 \\
11 & & 5 & 2 & 4 & 7 & 7 & 6 & 5 & 2 & 3 & 5 & 7 & & 53 \\\noalign{\vskip1ex}
& & 43 & 18 & 24 & 59 & 53 & 42 & 46 & 21 & 28 & 49 & 51 & & %colSums
\end{array}$
\end{center}
\begin{table}
\begin{center}
\begin{tabular}{c c c c }
% &&~~~$ \begin{array}{ccccccccccc}
&&$ \begin{array}{lllllllllllllllll}
1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 & 11
\end{array}$&\\
\\
$M^2$ =& $\begin{array}{c}
1 \\ 2 \\ 3 \\ 4 \\ 5 \\ 6 \\ 7 \\ 8 \\ 9 \\ 10 \\ 11
\end{array}$
& $\left( \begin{array}{lllllllllllllllll}
5 & 1 & 3 & 7 & 6 & 5 & 5 & 3 & 4 & 5 & 6 \\
6 & 2 & 1 & 7 & 6 & 4 & 4 & 2 & 2 & 6 & 5 \\
3 & 2 & 2 & 5 & 4 & 3 & 5 & 2 & 3 & 4 & 4 \\
5 & 3 & 3 & 8 & 6 & 4 & 5 & 1 & 2 & 5 & 5 \\
3 & 1 & 1 & 2 & 3 & 2 & 3 & 2 & 3 & 2 & 2 \\
2 & 0 & 1 & 1 & 2 & 2 & 1 & 1 & 1 & 2 & 2 \\
4 & 2 & 2 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 \\
1 & 1 & 2 & 3 & 3 & 3 & 3 & 2 & 2 & 3 & 4 \\
4 & 2 & 3 & 6 & 5 & 4 & 5 & 2 & 3 & 5 & 5 \\
5 & 2 & 2 & 7 & 6 & 5 & 5 & 2 & 2 & 7 & 6 \\
5 & 2 & 4 & 7 & 7 & 6 & 5 & 2 & 3 & 5 & 7 \\
\end{array}\right)$&
$\begin{array}{c}
50 \\ 45 \\ 37 \\ 47 \\ 24 \\ 15 \\ 43 \\ 27 \\ 44 \\ 49 \\ 53 %rowSums
\end{array}$\\
\\
&&$ \begin{array}{lllllllllllllllll}
43 & 18 & 24 & 59 & 53 & 42 & 46 & 21 & 28 & 49 & 51 %colSums
\end{array}$&\\
\end{tabular}
\end{center}
\end{table}
\end{document}
将阵列设置更改为
{@{}cl@{\,\,}*{11}{@{\,\,}c@{\,\,}}@{\,\,}rc}
您将得到一个更窄的数组，如下所示。
