\documentclass[a4paper,oneside,11pt]{article}
\usepackage[left=2.5cm,right=2.5cm,top=4cm,bottom=2.7cm]{geometry}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{graphicx}
\usepackage{array}
\usepackage{newtxtext,newtxmath}
\usepackage{lipsum}
\usepackage{longtable}
\begin{document}
\theoremstyle{definition}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{example}[theorem]{Example}
\lipsum[1-4]
\begin{example}
We present the examples of t-norm and t-conorm using a table as follows.
\begingroup
\renewcommand{\arraystretch}{1.5}
\begin{longtable}{|m{2.3cm}|c|c|}
\caption{Example of t-norm and t-conorm}
\hline
\hfill \textbf{Name}\hfill \strut&\textbf{t-norm}&\textbf{t-conorm}\\
\hline
Standard intersection/ standard union&$T_m(x,y)=\min(x,y)$&$C_m(x,y)=\max(x,y)$\\
\hline
Bounded sum&$T_b(x,y)=\max(0,x+y-1)$&$C_b(x,y)=\min(1,x+y)$\\
\hline
Algebraic product/ Algebraic sum&$T_p(x,y)=xy$&$C_p(x,y)=x+y-xy$\\
\hline
Drastic&$T_D(x,y)=
\begin{cases}
y&\text{if }x=1\\
x&\text{if }y=1\\
0&\text{otherwise}
\end{cases}$
&
$C_D(x,y)=
\begin{cases}
y&\text{if }x=0\\
x&\text{if }y=0\\
1&\text{otherwise}
\end{cases}
$
\\
\hline
Nilpotent minimum/ Nilpotent maximum&$T_{nM}(x,y)=
\begin{cases}
\min(x,y)&\text{if }x+y> 1\\
0&\text{otherwise}
\end{cases}$&
$
C_{nM}(x,y)=
\begin{cases}
\max(x,y)&\text{if }x+y<1\\
1&\text{otherwise}
\end{cases}
$
\\
\hline
Hamacher product/ Einstein sum&$T_{H_0}(x,y)=
\begin{cases}
0&\text{if }x=y=0\\
\dfrac{xy}{x+y-xy}&\text{otherwise}
\end{cases}$&
$
C_{H_2}(x,y)=\dfrac{x+y}{1+xy}
$\label{tabelnorma}
\\
\hline
\end{longtable}
\endgroup
\end{example}
\end{document}
Quiero agregar un título en mi tabla. Estoy usando longtable. Pero no sé por qué ese código me da error.
¿Como arreglarlo?
Respuesta1
\captionel interiorlongtabletuvo que terminarse con\\(como se menciona en mi comentario}- Puede ser interesante hacer algunos ajustes fuera de tema en la tabla (ver MWE a continuación).
\documentclass[a4paper,oneside,11pt]{article}
\usepackage[hmargin=2.5cm,
vmargin={4cm,2.7cm}]{geometry}
\usepackage{mathtools, amsthm}
\theoremstyle{definition}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{example}[theorem]{Example}
\usepackage{newtxtext,newtxmath}
\usepackage{graphicx}
\usepackage[skip=0.33\lineskip]{caption}
\usepackage{array, longtable}
\usepackage[column=O]{cellspace}
\setlength\cellspacetoplimit{8pt}
\setlength\cellspacebottomlimit{8pt}
\usepackage{lipsum}
\begin{document}
\lipsum[1-4]
\begin{example}
We present the examples of t-norm and t-conorm using a table as follows.
\begingroup
\small
\begin{longtable}{|>{\raggedright}O{m{3.5cm}}|*{2}{>{$}Oc<{$}|}}
\caption{Example of t-norm and t-conorm}
\label{tabelnorma}\\
\hline
\hfil\textbf{Name}
& \textbf{t-norm} & \textbf{t-conorm} \\
\hline
Standard intersection/ standard union
& T_m(x,y)=\min(x,y) & C_m(x,y)=\max(x,y) \\
\hline
Bounded sum
& T_b(x,y)=\max(0,x+y-1) & C_b(x,y)=\min(1,x+y) \\
\hline
Algebraic product/ Algebraic sum
& T_p(x,y)=xy & C_p(x,y)=x+y-xy \\
\hline
Drastic
& T_D(x,y) = \begin{cases*}
y & if $x=1$ \\
x & if $y=1$ \\
0 & otherwise
\end{cases*} & C_D(x,y) = \begin{cases*}
y & if $x=0$ \\
x & if $y=0$ \\
1 & otherwise
\end{cases*} \\
\hline
Nilpotent minimum/ Nilpotent maximum
& T_{nM}(x,y) = \begin{cases*}
\min(x,y) & if $x+y>1$ \\
0 & otherwise
\end{cases*} & C_{nM}(x,y) = \begin{cases*}
\max(x,y) & if $x+y<1$ \\
1 & otherwise
\end{cases*} \\
\hline
Hamacher product/ Einstein sum
& T_{H_0}(x,y) = \begin{cases*}
0 & if $x=y=0$ \\
\dfrac{xy}{x+y-xy} & otherwise
\end{cases*} & C_{H_2}(x,y)=\dfrac{x+y}{1+xy} \\
\hline
\end{longtable}
\endgroup
\end{example}
\lipsum[5]
\end{document}
(las líneas rojas muestran parte del diseño de la página)
Respuesta2
Desde que mencionasteen una pregunta anteriorSi desea que su tabla sea tan ancha como el ancho del texto, le sugiero usarla xltbularen lugar de longtable. Con su Xtipo de columna, la tabla tiene automáticamente el ancho especificado, por lo que no es necesario adivinar el ancho apropiado de la primera columna:
\documentclass[a4paper,oneside,11pt]{article}
\usepackage[left=2.5cm,right=2.5cm,top=4cm,bottom=2.7cm]{geometry}
\usepackage{amsmath}
\usepackage{amsthm}
\usepackage{graphicx}
\usepackage{array}
\usepackage{newtxtext,newtxmath}
\usepackage{lipsum}
\usepackage{xltabular}
\renewcommand{\tabularxcolumn}[1]{m{#1}}
\usepackage[column=0]{cellspace}
\setlength{\cellspacetoplimit}{3\tabcolsep}
\setlength{\cellspacebottomlimit}{\cellspacetoplimit}
\addparagraphcolumntypes{X}
\begin{document}
\theoremstyle{definition}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{example}[theorem]{Example}
\lipsum[1-4]
\begin{example}
We present the examples of t-norm and t-conorm using a table as follows.
\begin{xltabular}{\textwidth}{|0{X}|>{$}0c<{$}|>{$}0c<{$}|}
\caption{Example of t-norm and t-conorm}\\
\hline
\hfill \textbf{Name}\hfill \strut&\textbf{t-norm}&\textbf{t-conorm}\\
\hline
Standard intersection/ standard union&T_m(x,y)=\min(x,y)&C_m(x,y)=\max(x,y)\\
\hline
Bounded sum&T_b(x,y)=\max(0,x+y-1)&C_b(x,y)=\min(1,x+y)\\
\hline
Algebraic product/ Algebraic sum&T_p(x,y)=xy&C_p(x,y)=x+y-xy\\
\hline
Drastic&T_D(x,y)=
\begin{cases}
y&\text{if }x=1\\
x&\text{if }y=1\\
0&\text{otherwise}
\end{cases}
&
C_D(x,y)=
\begin{cases}
y&\text{if }x=0\\
x&\text{if }y=0\\
1&\text{otherwise}
\end{cases}
\\
\hline
Nilpotent minimum/ Nilpotent maximum&T_{nM}(x,y)=
\begin{cases}
\min(x,y)&\text{if }x+y> 1\\
0&\text{otherwise}
\end{cases}&
C_{nM}(x,y)=
\begin{cases}
\max(x,y)&\text{if }x+y<1\\
1&\text{otherwise}
\end{cases}
\\
\hline
Hamacher product/ Einstein sum&T_{H_0}(x,y)=
\begin{cases}
0&\text{if }x=y=0\\
\dfrac{xy}{x+y-xy}&\text{otherwise}
\end{cases}&
C_{H_2}(x,y)=\dfrac{x+y}{1+xy}
% \label{tabelnorma}
\\
\hline
\end{xltabular}
\end{example}
\end{document}