![表中出现未知错误](https://linux22.com/image/250106/%E8%A1%A8%E4%B8%AD%E5%87%BA%E7%8E%B0%E6%9C%AA%E7%9F%A5%E9%94%99%E8%AF%AF%20.png)
在下面表格的代码中,编译后,在以“Not protest”开头的行中出现了红色标记的错误,尽管输出看起来还不错。你能指出错误所在吗?
\documentclass{article}
%\usepackage{showframe}% http://ctan.org/pkg/showframe
\usepackage{booktabs}% http://ctan.org/pkg/booktabs
\usepackage{array}% http://ctan.org/pkg/array
\usepackage{tabularx}% http://ctan.org/pkg/tabularx
\usepackage{booktabs}% http://ctan.org/pkg/booktabs
\usepackage{array}% http://ctan.org/pkg/array
\usepackage{tabularx}% http://ctan.org/pkg/tabularx
\usepackage{calc}
\usepackage{tabu}
\begin{document}
\begin{table}[h]
\centering
\begin{tabular}{|c|c|c|}
\hline
& $N^{e}$ \textless $K_i$ & $N^{e} \geq T_i$\\
\hline
Not protest & $ -\Delta U $ & $(1-\gamma) \cdot \Delta U}$ \\
\hline
Protest & $-(k/N^{e})-\Delta$ U& $\Delta U - (k/N^{e})$\\
\hline
\end{tabular}
\caption{Payoff matrix}
\end{table}
\end{document}
答案1
在您提到的行 (以 'Not protest' 开头的行) 中,\Delta 后面的括号太多了。
\begin{table}[h]
\centering
\begin{tabular}{|c|c|c|}
\hline
& $N^{e} < K_i$ & $N^e \geq T_i$\\
\hline
Not protest & $ -\Delta U $ & $(1-\gamma) \cdot \Delta U$ \\
\hline
Protest & $-(k/N^{e})-\Delta U$ & $\Delta U - (k/N^e)$\\
\hline
\end{tabular}
\caption{Payoff matrix}
\end{table}
答案2
一个错误?
TeX 说
! Extra }, or forgotten $.
l.22 ... -\Delta U $ & $(1-\gamma) \cdot \Delta U}
$ \\
? h
I've deleted a group-closing symbol because it seems to be
spurious, as in `$x}$'. But perhaps the } is legitimate and
you forgot something else, as in `\hbox{$x}'. In such cases
the way to recover is to insert both the forgotten and the
deleted material, e.g., by typing `I$}'.
您希望 TeX 有多清晰?请学会阅读日志文件。