如何在 LaTeX 中的方程式内使用内联表格？

Question

我想在方程式中使用表格，如下所示：

这可能吗？该示例只是一张手动添加表格的图片。

表格如下：

\begin{table}[H]
\centering
\begin{tabular}{|l|l|}
\hline
\multicolumn{1}{|c|}{\textbf{name}}
& \multicolumn{1}{c|}{\textbf{movie}}\\
\hline
  Jack Nicholson    & Wolf \\
  Dennis Quaid        & Frequency \\ 
  Jack  Black        & The School of Rock \\ 
  Jack Nicholson & The Shining \\
  Morgan Freeman      & Se7en \\
\hline
\end{tabular}
\end{table}

\begin{table}[H]
\centering
\begin{tabular}{|l|}
\hline
\multicolumn{1}{|c|}{\textbf{name}} \\
\hline
  Jack Nicholson \\
  Dennis Quaid \\
  Jack  Black \\
  Morgan Freeman \\
\hline
\end{tabular}
\end{table}

Answer 1

您可以完全按照您期望的方式进行操作：

\documentclass{article}
\begin{document}
$
\pi_{\mathrm{name}}\left(\ 
\begin{tabular}{|l|l|}
\hline
\multicolumn{1}{|c|}{\textbf{name}}
& \multicolumn{1}{c|}{\textbf{movie}}\\
\hline
  Jack Nicholson    & Wolf \\
  Dennis Quaid        & Frequency \\ 
  Jack  Black        & The School of Rock \\ 
  Jack Nicholson & The Shining \\
  Morgan Freeman      & Se7en \\
\hline
\end{tabular}
\ \right)=
\begin{tabular}{|l|}
\hline
\multicolumn{1}{|c|}{\textbf{name}} \\
\hline
  Jack Nicholson \\
  Dennis Quaid \\
  Jack  Black \\
  Morgan Freeman \\
\hline
\end{tabular}
$
\end{document}

Answer 2

这是完全可能的，因为tabular环境会自动切换到文本模式。但是，不要使用table浮点型环境。

\documentclass{article}
\usepackage{amsmath}

\begin{document}

    \[ \pi_{\text{name}} \\begin{pmatrix}\:
\begin{tabular}{|l|l|}
\hline
\multicolumn{1}{|c|}{\textbf{name}}
& \multicolumn{1}{c|}{\textbf{movie}}\\
\hline
  Jack Nicholson & Wolf \\
  Dennis Quaid & Frequency \\
  Jack Black & The School of Rock \\
  Jack Nicholson & The Shining \\
  Morgan Freeman & Se7en \\
\hline
\end{tabular}\:
    \end{pmatrix}
 =
\begin{tabular}{|l|}
\hline
\multicolumn{1}{|c|}{\textbf{name}} \\
\hline
  Jack Nicholson \\
  Dennis Quaid \\
  Jack Black \\
  Morgan Freeman \\
\hline
\end{tabular} \]%

\end{document}