矩阵与外部元素保持视觉一致性

Question

我正在尝试找出编写第一行和第一列中带有外部元素的矩阵的最佳方法。以下是使用array blkarray和kbordermatrix包的代码。

可以看出，在使用 时，[]中的blkarray不会像 中那样展开。 此外 的视觉外观与 有所不同。 另一方面，使用我无法获取外部索引。\left[ \right]arraykbordermatrixarrayarray

我更愿意使用基于的东西来array保持整个文档的视觉一致性或改变blkarray/kbordermatrix以便可以获得类似的结果。

\documentclass{article}

\usepackage{mathtools}
\usepackage{array}
\usepackage{blkarray}
\usepackage{kbordermatrix}

\begin{document}

\begin{equation}
    P =
    \begin{blockarray}{ccccc}
               & BS_1    & BS_2    & \ldots & BS_B    \\ 
    \begin{block}{c[cccc]}
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
    \end{block}
    \end{blockarray}
\end{equation}

\begin{equation}
    P = \left[
    \begin{array}{c|cccc}
               & BS_1    & BS_2    & \ldots & BS_B    \\ \hline
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
\end{array} \right]
\end{equation}

\begin{equation}
    P =
    \kbordermatrix{%
           & BS_1    & BS_2    & \ldots & BS_B    \\
    UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
    UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
    \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
    UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B}
  }
\end{equation}

\end{document}

Answer 1

一些可能性：

\documentclass{article}

\usepackage{mathtools}
\usepackage{array}
\usepackage{blkarray}


\begin{document}

\begin{equation}
    P =
    \begin{blockarray}{ccccc}
               & BS_1    & BS_2    & \ldots & BS_B    \\ 
    \begin{block}{c[cccc]}
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
    \end{block}
    \end{blockarray}
\end{equation}

\begin{equation}
    P = \left[
    \begin{array}{c|cccc}
               & BS_1    & BS_2    & \ldots & BS_B    \\ \hline
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
\end{array} \right]
\end{equation}



\vspace{15pt}
\begin{equation}
    P = \hspace{3.23em}\left[\hspace{-3.3em}
    \begin{array}{c@{\hspace{1em}}cccc}
\noalign{\vspace{-15pt}}
               & BS_1    & BS_2    & \ldots & BS_B    \\
\noalign{\vspace{2pt}}
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
\end{array} \right]
\end{equation}

\end{document}

---

blkarray分隔符在本地设置时会失效\delimtershortfall，并\delimiterfactor使其失效。如果您不想这样，您可以本地禁用该功能：

\documentclass{article}

\usepackage{mathtools}
\usepackage{array}
\usepackage{blkarray}

\newdimen\zzzzdimen
\newcount\zzzzcount
\begin{document}

\begin{equation}
\let\delimitershortfall\zzzzdimen
\let\delimiterfactor\zzzzcount
    P =
    \begin{blockarray}{ccccc}
               & BS_1    & BS_2    & \ldots & BS_B    \\ 
    \begin{block}{c[cccc]}
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
    \end{block}
    \end{blockarray}
\end{equation}

\begin{equation}
    P = \left[
    \begin{array}{c|cccc}
               & BS_1    & BS_2    & \ldots & BS_B    \\ \hline
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
\end{array} \right]
\end{equation}



\vspace{15pt}
\begin{equation}
    P = \hspace{3.23em}\left[\hspace{-3.3em}
    \begin{array}{c@{\hspace{1em}}cccc}
\noalign{\vspace{-15pt}}
               & BS_1    & BS_2    & \ldots & BS_B    \\
\noalign{\vspace{2pt}}
        UE_1   & P_{1,1} & P_{1,2} & \ldots & P_{1,B} \\
        UE_2   & P_{2,1} & P_{2,2} & \ldots & P_{1,B} \\
        \vdots & \vdots  & \vdots  & \ddots & \vdots  \\
        UE_U   & P_{U,1} & P_{U,2} & \ldots & P_{U,B} \\
\end{array} \right]
\end{equation}

\end{document}