我有以下乳胶代码：
%\usepackage{multirow}
\begin{tabular}{|c|c|c|c|c|c|}
\hline
\multirow{2}{*}{Position} & \multirow{2}{*}{CF ($t=0$)} & \multicolumn{4}{c|}{CF ( $t=T$ )} \\ \cline{3-6}
& & $S_T \le 40$ & $40<S_T \le 50$ & $50<S_T \le 70$ & $S_T \ ge 70$ \\ \hline
\begin{tabular}[c]{@{}c@{}}Long 2 Puts (K=40)\end{tabular} & \begin{tabular}[c]{@{}c@{}}$-2(10) = -20$\end{tabular} & \begin{tabular}[c]{@{}c@{}}$2(40-S_T) = 80 - 2S_T$\end{tabular} & $0$ & $0$ & $0$ \\ \hline
\begin{tabular}[c]{@{}c@{}}Long Put (K=70)\end{tabular} & $-30$ & $70-S_T$ & $70-S_T$ & $70-S_T$ & $0$ \\ \hline
\begin{tabular}[c]{@{}c@{}}Short 3 Puts (K=50)\end{tabular} & \begin{tabular}[c]{@{}c@{}}$+3(20) =60$\end{tabular} & \begin{tabular}[c]{@{}c@{}}$-3(50 - S_T)=3S_T-150$\end{tabular} & \begin{tabular}[c]{@{}c@{}}$-3(50 - S_T) =3S_T-150$\end{tabular} & $0$ & $0$ \\ \hline
\textbf{Total} & $10$ & $0$ & $2S_T-80$ & $70-S_T$ & $0$ \\ \hline
\end{tabular}
这是我想要的表格，它可以工作，但是它太宽了，无法放入我的文档中，所以我只是想在某些单元格中简单地放入换行符 \\，例如相同的代码：
\begin{tabular}{|c|c|c|c|c|c|}
\hline
\multirow{2}{*}{Position} & \multirow{2}{*}{CF ($t=0$)} & \multicolumn{4}{c|}{CF ( $t=T$ )} \\ \cline{3-6}
& & $S_T \le 40$ & $40<S_T \le 50$ & $50<S_T \le 70$ & $S_T \ ge 70$ \\ \hline
\begin{tabular}[c]{@{}c@{}}Long 2 Puts (K=40)\end{tabular} & \begin{tabular}[c]{@{}c@{}}$-2(10) = -20$\end{tabular} & \begin{tabular}[c]{@{}c@{}}$2(40-S_T) = 80 - 2S_T$\end{tabular} & $0$ & $0$ & $0$ \\ \hline
\begin{tabular}[c]{@{}c@{}}Long Put (K=70)\end{tabular} & $-30$ & $70-S_T$ & $70-S_T$ & $70-S_T$ & $0$ \\ \hline
\begin{tabular}[c]{@{}c@{}}Short 3 Puts \\(K=50)\end{tabular} & \begin{tabular}[c]{@{}c@{}}$+3(20) =60$\end{tabular} & \begin{tabular}[c]{@{}c@{}}$-3(50 - S_T)=3S_T-150$\end{tabular} & \begin{tabular}[c]{@{}c@{}}$-3(50 - S_T) =3S_T-150$\end{tabular} & $0$ & $0$ \\ \hline
\textbf{Total} & $10$ & $0$ & $2S_T-80$ & $70-S_T$ & $0$ \\ \hline
\end{tabular}
除非我在 (K=50) 前面放置一个 \\，否则代码不再起作用。我该如何修复这个问题？
答案1
解决方案如下makecell：
\documentclass[a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[showframe]{geometry}
\usepackage{mathtools}
\usepackage{amsfonts}
\usepackage{xcolor}
\usepackage{array, multirow, makecell}
\setcellgapes{4pt}
\begin{document}
\centering\makegapedcells\setlength\tabcolsep{5pt}
\begin{tabular}{|c|*{5}{>{$}c<{$}|}}
\hline
\multirowcell{2}[-1ex]{Position} & \multirowcell{2}[-1ex]{CF ($t=0$)} & \multicolumn{4}{c|}{CF ( $t=T$ )} \\ \cline{3-6}
& & S_T ≤ 40 & 40<S_T ≤ 50 & 50<S_T ≤ 70 & S_T ≥ 70 \\
\hline
\makecell{Long 2 Puts \\ (K=40)} & -2(10) = -20 & \begin{matrix*}[r]2(40-S_T)\quad{}\\= 80 - 2S_T\end{matrix*} & 0 & 0 & 0 \\
\hline
\makecell{Long Put \\ (K=70)} & -30 & 70-S_T & 70-S_T & 70-S_T & 0 \\
\hline
\makecell{Short 3 Puts \\ (K=50)} & +3(20) =60 & \begin{matrix*}[r]-3(50 - S_T)\quad {}\\=3S_T-150\end{matrix*} & \begin{matrix*}[r]-3(50 - S_T)\quad {}\\ =3S_T-150\end{matrix*} & 0 & 0 \\
\hline
\textbf{Total} & 10 & 0 & 2S_T-80 & 70-S_T & 0 \\
\hline
\end{tabular}
\end{document}
答案2
我总是考虑重新格式化太宽的表格，尤其是当它们很短时。对我来说，这表明表格需要旋转 90 度：
\documentclass{article}
\usepackage{booktabs}
\usepackage{multirow}
\begin{document}
\newcommand{\st}{\ensuremath{S_T}}
\begin{table}
\centering
\begin{tabular}{cccccc} \toprule
& & \multicolumn{3}{c}{$K$} \\ \cmidrule{3-5}
Position & & 40 & 70 & 50 & Total \\ \midrule
CF ($t=0$) & & -20 & -30 & 60 & 10 \\ \addlinespace
\multirow{4}{*}{CF ($t=T$)} & $\st \le 40$ & $80-2 \st$ & $70-\st$ & $3 \st - 150$ & 0 \\
& $40 < \st \le 50$ & 0 & $70-\st$ & $3 \st - 150$ & $2 \st - 80$ \\
& $50 < \st \le 70$ & 0 & $70-\st$ & 0 & $70-\st$\\
& $\st \ge 70$ & 0 & 0 & 0 & 0 \\ \bottomrule
\end{tabular}
\end{table}
\end{document}
