# Latex - Multirow and Linebreak within array

How to Linebreak and center the following

\documentclass[11pt]{article}

\usepackage[utf8]{inputenc} % Kodierung
\usepackage[ngerman]{babel} % Sprache
\usepackage[intlimits]{amsmath}
\usepackage{amssymb}

\begin{document}
SUBSET-SUM := $\left \{ \begin{array}{c|c} < x_1,\dots ,x_n,t > & x_1,\dots ,x_n,t \in \mathbb{N} \text{ und es existiert eine Teilmenge } I \subseteq \{1,\dots,n\} \text{ mit } \sum_{i \in I} x_i = t \end{array} \right \}$.
\end{document}


If i compile this, i cannot read the outcome as it is outside my paper boundries.

I'd like it to look like this:

• Welcome to the site, but please provide something that compiles. – Steven B. Segletes Jul 26 '16 at 19:52
• It is not exactly clear how you want it to look, but here shows how to break it into lines and colums: \documentclass{article} \usepackage{amssymb,amsmath} \begin{document} \begin{itemize} \item SUBSET-SUM := $\left \{ \begin{array}{c|c} < x_1,\dots ,x_n,t > & x_1,\dots ,x_n,t \in \mathbb{N} \\ &\text{ und es existiert eine Teilmenge} \\ I \subseteq \{1,\dots,n\} & \text{ mit } \sum_{i \in I} x_i = t \end{array} \right \}$. \end{itemize} \end{document} – Steven B. Segletes Jul 26 '16 at 19:57
• Thanks...i edited my first post so it should be clear now, how i'd like it to look like – Dennis Höhl Jul 26 '16 at 20:03

One more solution, with use of array package and m column type:

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc} % Kodierung
\usepackage[ngerman]{babel} % Sprache
\usepackage[intlimits]{amsmath}
\usepackage{amssymb}
\usepackage{array}

\begin{document}
SUBSET-SUM : =
$\left \{ \begin{array}{c|>{\raggedright\arraybackslash}m{0.55\textwidth}} \langle x_1,\dots ,x_n,t\rangle &$x_1,\dots ,x_n,t \in \mathbb{N}$und es existiert eine Teilmenge$I \subseteq \{1,\dots,n\}$mit$\sum_{i \in I} x_i = t$\end{array} \right\}$.
\end{document}


it gives:

• Thank you, too ... this looks even simpler then the one above – Dennis Höhl Jul 26 '16 at 20:28

Maybe this:

\documentclass{article}
\usepackage{amssymb,amsmath,stackengine}
\renewcommand\stackalignment{l}
\def\stacktype{L}
\setstackgap{L}{1.2\normalbaselineskip}
\stackMath
\begin{document}
\begin{itemize}
\item SUBSET-SUM := $\left\{ < x_1,\dots ,x_n,t > \Bigg|\, \stackanchor{x_1,\dots ,x_n,t \in \mathbb{N} \text{ und es existiert eine}} {\text{Teilmenge } I \subseteq \{1,\dots,n\} \text{ mit } \displaystyle\sum_{i \in I} x_i = t} \right \}$.
\end{itemize}
\end{document}


• Thank you ... didn't expect it to be that 'difficult' – Dennis Höhl Jul 26 '16 at 20:27