如果你能帮我解决这个问题,那我就太客气了。谢谢!
\documentclass{beamer}
\usepackage{tikz}
\usepackage[ruled,linesnumbered]{algorithm2e}
\begin{document}
\begin{frame}[t]{RPNI - example}
$ S_+ :=\{a,b,aa\} $, $ S_- :=\{\varepsilon, ab, aab\} $\\
\begin{tabular}[l | c]
$ PTA(S_+) $
&
a
\end{tabular}
\end{frame}
\end{document}
答案1
错误信息是
! LaTeX Error: Illegal character in array arg.
正如你
\begin{tabular}[l | c]
当你打算
\begin{tabular}{l | c}