我正在使用 LuaLaTex 制作幻灯片。幻灯片中有一个表格。但是，我无法控制其大小，并且表格的某些部分无法查看。我该如何解决这个问题？
\documentclass[11pt]{beamer}
\begin{document}
\begin{frame}{Plan for completion and thesis submission}
%%
\begin{center}
%%
\begin{tabular}{|l|c|c|c|c|c|}
\hline
\centering{Tasks} & \multicolumn{2}{|c|}{\small{2016/2017}} & \multicolumn{2}{|c|}{\small{2017/2018}} & \small{2018/2019}\\
\cline{2-6}
& \tiny{Sem. 1} & \tiny{Sem. 2} & \tiny{Sem. 1} & \tiny{Sem. 2} & \tiny{Sep - Dec 18} \\
\hline
\small{Reading and understanding} & $\times$ & $\times$ & & &\\
\small{of various advanced concepts} & & & & &\\
\small{on groups and graphs} & & & & &\\
\hline
\small{Write a literature review} & $\times$ & & & &\\
\hline
\small{Obtain examples (by hand} & & $\times$ & & &\\
\small{or using a computational} & & & & &\\
\small{algebra system)} & & & & &\\
\hline
\small{Form conjectures and} & & $\times$ & & &\\
\small{prove or disprove the} & & & & &\\
\small{conjectures} & & & & &\\
\hline
\small{Work on} & & $\times$ &$\times$ & $\times$ & $\times$\\
\small{research problems} & & & & &\\
\hline
\small{Submit a paper to an} & & & $\times$ & &\\
\small{ISI-indexed journal for} & & & & &\\
\small{publication} & & & & &\\
\hline
\small{Write up thesis for} & & & &$\times$ &\\
\small{submission} & & & & &\\
\hline
\small{Complete writing up} & & & & & $\times$ \\
\small{of thesis and submit} & & & & &\\
\small{thesis by December 2018} & & & & &\\
\hline
\end{tabular}
\end{center}
\end{frame}
\end{document}
答案1
为了节省一些空间（水平和垂直），请使用较小的字体大小，在列之间使用较少的空白，并使标题更简洁。为了确保表格内容适合文本块，请为第一列使用环境tabularx和X列类型。如果您为第一列使用X列，您还可以使用它来执行自动换行。
另外，请尝试让表格看起来更“开放”。例如，删除所有垂直线 - 它们根本就不需要！真的！ - 并使用更少但间距适当的水平线。我建议使用包中的宏booktabs。
\documentclass[11pt]{beamer}
\usepackage{tabularx,ragged2e,booktabs}
\begin{document}
\begin{frame}{Plan for completion and thesis submission}
\footnotesize
\setlength\tabcolsep{4pt} % default: 6pt
\begin{tabularx}{\textwidth}{@{}>{\RaggedRight}X*{5}{c}@{}}
\toprule
Tasks & \multicolumn{2}{c}{2016--17} & \multicolumn{2}{c}{2017--18} & 2018--19\\
\cmidrule(l){2-6}
& {\tiny Sem.\ 1} & {\tiny Sem.\ 2} & {\tiny Sem.\ 1} & {\tiny Sem.\ 2} & {\tiny Sep--Dec 18} \\
\midrule
Reading and understanding of various advanced concepts on groups and graphs
& $\times$ & $\times$ \\
\addlinespace
Write a literature review
& $\times$ \\
\addlinespace
Obtain examples (by hand or using a computational algebra system)
& & $\times$ \\
\addlinespace
Form conjectures and prove or disprove the conjectures
& & $\times$ \\
\addlinespace
Work on research problems
& & $\times$ &$\times$ & $\times$ & $\times$ \\
\addlinespace
Submit a paper to an ISI-indexed journal for publication
& & & $\times$ \\
\addlinespace
Write up thesis for submission
& & & &$\times$ \\
\addlinespace
Complete writing up of thesis and submit thesis by December 2018
& & & & & $\times$ \\
\bottomrule
\end{tabularx}
\end{frame}
\end{document}