Question

begin{table}[h]
\centering
    \begin{tabular}{c p{5cm} c}\hline
    Attribut & Description & Equation \\ \hline
        $E$ & The set of objects that can't be distinguished from each other based on the available attributes & Let $P \subseteq A$ , 
E(P)  =  \{\ (x, y) \in U^2  : \foralla P, a(x) = a(y) \}\   \\
$ \beta $& Admissible error rate\\
$K$ & Grade level
    \end{tabular}
\end{table}

因为我是乳胶的新手，当我使用以前的代码时，我在E ^（2）中的行E（P）= {\（x，y）\中得到此错误“缺少$ inserted”：\ foralla P， a（x）= a（y）} \ \ 任何人都可以帮我解决这个错误。

Answer 1

好吧，你错过了$ :)等式E(P) ...必须在数学模式中排版：

\documentclass{standalone}
\usepackage{amsmath}
\begin{document}
    \begin{tabular}{c p{5cm} c}\hline
    Attribut & Description & Equation \\ \hline
        $E$ & The set of objects that can't be distinguished from each other based on the available attributes & Let $P \subseteq A$ , 
$E(P)  =  \{\ (x, y) \in U^2  : \forall P, a(x) = a(y) \}$ \\
$ \beta $& Admissible error rate\\
$K$ & Grade level
    \end{tabular}
\end{document}

此外，请确保包含完整且可编辑的文档，其中包含重现问题所需的最少包和定义。

显示此错误的Latex缺少$插入

1 个答案: