复杂块矩阵宏（XeTeX 或 pdfTeX）中的垂直条奇怪地移动

Question

以下代码：

\documentclass[a4paper]{report}
\usepackage{amsmath,amsfonts,amssymb,multirow}
\usepackage{mathtools}
\newcommand{\sq}[1]{\left[#1\right]}
\DeclareSymbolFont{bbold}{U}{bbold}{m}{n}
\DeclareSymbolFontAlphabet{\mathbbold}{bbold}
\newcommand{\blocks}[9][-10]{\!\!\begin{array}{cccc}%
    #2&#3\hspace{-0.2cm}&%
    \multicolumn{2}{r}{\multirow{2}{*}{\raisebox{-14pt}{\scalebox{1}[1.3]{\Huge{$\vert$}}}%
    \hspace{0.2cm}\raisebox{#1pt}{\Huge{$#6$}}}}\\%
    #4&#5\hspace{-0.2cm}\\[0.2em]%
    \hline\multicolumn{2}{r}{\multirow{2}{*}{\raisebox{#9pt}{\Huge{$#7$}\hspace{-0.2cm}}}}&%
    \multicolumn{2}{r}{\multirow{2}{*}{\raisebox{-5pt}{\scalebox{1}[1]{\Huge{$\vert$}}}%
    \hspace{0.2cm}\raisebox{#9pt}{\Huge{$#8$}}}}\\\\%
    \end{array}\!\!}

\begin{document}
$$\sq{\blocks[-13]{\cosh\theta_v}{-\sinh\theta_v}{\sinh\theta_v}{\cosh\theta_v}
    {\mathbbold{0}}{\mathbbold{0}\quad\,\,\,}{\mathbbold{1}}{-7}}.$$
$$\sq{\blocks[-13]{\cosh\theta_v}{-\sinh\theta_v}{\sinh\theta_v}{\cosh\theta_v}
    {\mathbbold{0}}{\mathbbold{0}\quad\,\,\,}{\mathbbold{1}}{1}}.$$
\end{document}

排版为：

为什么“第二”行上的垂直线会随着该行的多列多行向上移动而向下移动？为什么这个宏在cc|cc数组定义中会创建一条垂直线，该垂直线会停止在 处\hline，而不会低于 ？

Answer 1

我永远不会使用带有九个参数的宏。

\documentclass[a4paper]{report}
\usepackage{mathtools}

% Let's go all the way and define \mathbbold at every size
\DeclareFontFamily{U}{bbold}{}
\DeclareFontShape{U}{bbold}{m}{n}
   {  <-5.5> bbold5 <5.5-6.5> bbold6 <6.5-7.5> bbold7
      <7.5-8.5> bbold8 <8.5-9.5> bbold9 <9.5-11> bbold10
      <11-15> bbold12 <15-> bbold17 }{}
\DeclareSymbolFont{bbold}{U}{bbold}{m}{n}
\DeclareSymbolFontAlphabet{\mathbbold}{bbold}

\makeatletter
\newcommand{\bigblock}[2][\Huge]{%
  \mkern9mu
  \vcenter{\kern.3ex\hbox{#1$\m@th\mathstrut\mathbbold{#2}$}}%
  \mkern9mu
}
\makeatother
\newenvironment{arblock}[1]
  {\begin{array}{@{}#1@{}}}
  {\end{array}}


\begin{document}

\[
\left[\begin{array}{@{}c|c@{}}
\begin{arblock}{cc}
\cosh\theta_v & -\sinh\theta_v \\
\sinh\theta_v & \cosh\theta_v
\end{arblock}
  & \bigblock{0} \\
\hline
  \bigblock{0} & \bigblock{1}
\end{array}\right]
\]

\end{document}

该命令\bigblock有一个可选参数，默认值；如果您想要一个超大符号，您也\Huge可以使用。\bigblock[\Large]{0}\bigblock[\fontsize{54}{0}\selectfont]{0}