LaTeX表格中公式标签对齐问题求助

问题描述 #

我使用以下LaTeX代码创建表格：

\begin{table}[]
\centering
\renewcommand{\arraystretch}{1}
\caption{Example table.}
\label{tab:model-testbed}
\renewcommand{\arraystretch}{1.1}
\resizebox{\linewidth}{!}{%
\begin{tabular}{|c|l|l|}
\hline
Comment                                                     & \multicolumn{1}{c|}{Device1} & \multicolumn{1}{c|}{Device2}                \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla \\ Sth \end{tabular} &
  \begin{tabular}[c]{@{}l@{}}
   \begin{equation}
     \tag{1}\label{t3:1}
     \begin{aligned}
      y(x) = 66.1 + 1.11x - 1.28 \times 10^{-8}x^2 \\ +15.08 \times 10^{-2}x^1
      \end{aligned}
   \end{equation}
  \end{tabular} &
  \begin{tabular}[c]{@{}l@{}}
  \begin{equation}
      \tag{2}\label{t3:2}
      \begin{aligned}
          y(x) =20.33 + 1.24y - 1.74 \times 10^{-1}x^5 \\ + 1.14 \times 10^{-7}y^5
      \end{aligned}
  \end{equation}
  \end{tabular} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla \\ Sth\end{tabular}        & 
\begin{equation}
    \tag{3}\label{t3:3}
    \begin{aligned}
            w(x) =2.13 + 0.03x 
    \end{aligned}
\end{equation}
& 
\begin{equation}
    \tag{4} \label{t3:4}
    \begin{aligned}
            er(x) =4.85 + 33.56y
    \end{aligned}
\end{equation}
                          \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla\\  Sth\end{tabular}   & 
\begin{equation}
    \tag{5}\label{t3:5}
    \begin{aligned}
        b(x) =12.2 + 5.20y             
    \end{aligned}
\end{equation}
& 
\begin{equation}
    \tag{6}\label{t3:6}
    \begin{aligned}
        a(x) =1.11 + 1.11x - 2.543 \times 10^{-2}x^2
    \end{aligned}
\end{equation}
\hline
\end{tabular}}
\end{table}

生成的表格中，公式旁的标签（如(1)(3)等）紧邻公式，希望将所有标签对齐，但尝试用\hspace{1cm}调整无效，求解决方法。

解决方案 #

方法一：用minipage固定宽度+hfill推标签右对齐 #

放弃单元格内的equation环境，改用minipage限定公式区域宽度，aligned排版公式，\hfill将标签推到区域最右侧，实现同一列标签对齐。

修改后的代码：

\begin{table}[]
\centering
\renewcommand{\arraystretch}{1}
\caption{Example table.}
\label{tab:model-testbed}
\renewcommand{\arraystretch}{1.1}
\resizebox{\linewidth}{!}{%
\begin{tabular}{|c|l|l|}
\hline
Comment & \multicolumn{1}{c|}{Device1} & \multicolumn{1}{c|}{Device2} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla \\ Sth \end{tabular} &
  \begin{minipage}{0.3\textwidth}
    \begin{aligned}
      y(x) = 66.1 + 1.11x - 1.28 \times 10^{-8}x^2 \\ +15.08 \times 10^{-2}x^1
    \end{aligned}
    \hfill \tag{1}\label{t3:1}
  \end{minipage} &
  \begin{minipage}{0.3\textwidth}
    \begin{aligned}
        y(x) =20.33 + 1.24y - 1.74 \times 10^{-1}x^5 \\ + 1.14 \times 10^{-7}y^5
    \end{aligned}
    \hfill \tag{2}\label{t3:2}
  \end{minipage} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla \\ Sth\end{tabular} &
  \begin{minipage}{0.3\textwidth}
    \begin{aligned}
            w(x) =2.13 + 0.03x 
    \end{aligned}
    \hfill \tag{3}\label{t3:3}
  \end{minipage} &
  \begin{minipage}{0.3\textwidth}
    \begin{aligned}
            er(x) =4.85 + 33.56y
    \end{aligned}
    \hfill \tag{4}\label{t3:4}
  \end{minipage} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla\\  Sth\end{tabular} &
  \begin{minipage}{0.3\textwidth}
    \begin{aligned}
        b(x) =12.2 + 5.20y             
    \end{aligned}
    \hfill \tag{5}\label{t3:5}
  \end{minipage} &
  \begin{minipage}{0.3\textwidth}
    \begin{aligned}
        a(x) =1.11 + 1.11x - 2.543 \times 10^{-2}x^2
    \end{aligned}
    \hfill \tag{6}\label{t3:6}
  \end{minipage} \\ \hline
\end{tabular}}
\end{table}

方法二：拆分表格列，单独放置标签 #

调整表格列结构，将Device1和Device2的列拆成「公式左对齐列+标签右对齐列」，利用表格列的对齐特性实现标签统一对齐。

修改后的代码：

\begin{table}[]
\centering
\renewcommand{\arraystretch}{1}
\caption{Example table.}
\label{tab:model-testbed}
\renewcommand{\arraystretch}{1.1}
\resizebox{\linewidth}{!}{%
\begin{tabular}{|c|l@{}r|l@{}r|}
\hline
Comment & \multicolumn{2}{c|}{Device1} & \multicolumn{2}{c|}{Device2} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla \\ Sth \end{tabular} &
  \begin{aligned}
      y(x) = 66.1 + 1.11x - 1.28 \times 10^{-8}x^2 \\ +15.08 \times 10^{-2}x^1
  \end{aligned} & \tag{1}\label{t3:1} &
  \begin{aligned}
      y(x) =20.33 + 1.24y - 1.74 \times 10^{-1}x^5 \\ + 1.14 \times 10^{-7}y^5
  \end{aligned} & \tag{2}\label{t3:2} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla \\ Sth\end{tabular} &
  \begin{aligned}
          w(x) =2.13 + 0.03x 
  \end{aligned} & \tag{3}\label{t3:3} &
  \begin{aligned}
          er(x) =4.85 + 33.56y
  \end{aligned} & \tag{4}\label{t3:4} \\ \hline
\begin{tabular}[c]{@{}c@{}}BlaBla\\  Sth\end{tabular} &
  \begin{aligned}
      b(x) =12.2 + 5.20y             
  \end{aligned} & \tag{5}\label{t3:5} &
  \begin{aligned}
      a(x) =1.11 + 1.11x - 2.543 \times 10^{-2}x^2
  \end{aligned} & \tag{6}\label{t3:6} \\ \hline
\end{tabular}}
\end{table}

这里l@{}r表示左对齐列和右对齐列之间无间隔，公式放在左列，标签放在右列，同一设备列的所有标签会自动对齐在列的右侧，效果更规整。

内容的提问来源于stack exchange，提问作者Tricker Macedonia