# \multirow - Long name breaking/ruining layout

When I use this tabular enviroinment, for some reason the second-lowest row gets messed up badly. Can anybody please tell me how to fix this?

\documentclass[11pt, a4paper, fleqn, parskip]{scrartcl}

\usepackage[utf8x]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{mathtools, amssymb}
\usepackage{a4wide}
\usepackage{multirow}

\begin{document}
\begin{tabular}{|c|c|} \hline
$[a, b] := \{x \in \mathbb{R}: a \leq x \leq b\}$ & kompaktes Intervall \\ \hline
$(a, b) := \{x \in \mathbb{R}: a < x < b\}$ & offenes, beschr"anktes Intervall \\ \hline
$[a, b) := \{x \in \mathbb{R}: a \leq x < b\}$ & \multirow{2}{*}{halboffenes, beschr"anktes Intervall} \\
$(a, b] := \{x \in \mathbb{R}: a < x \leq b\}$ \\ \hline
$[a, \infty) := \{x \in \mathbb{R}: a \leq x\}$ \\ \multirow{2}{*}{abgeschlossenes, unbeschr"anktes Intervall} \\
$(-\infty, b] := \{x \in \mathbb{R}: x \leq b\}$ \\ \hline
$(a, \infty) := \{x \in \mathbb{R}: a < x\}$ & \multirow{2}{*}{offenes, unbeschr"anktes Intervall} \\
$(-\infty, b) := \{x \in \mathbb{R}: x < b\}$ \\ \hline
\end{tabular}
\end{document}

-
 Welcome to TeX.sx! Your used package a4wide is outdated and should not be used. See file l2tabu.pdf (try texdoc l2tabu in the command line of your computer). – Kurt Nov 19 '12 at 22:39

You missed some ampersands (&) below the row that contains multirow command:

\documentclass[11pt, a4paper, fleqn, parskip]{scrartcl}

\usepackage[utf8x]{inputenc}
\usepackage[ngerman]{babel}
\usepackage{mathtools, amssymb}
\usepackage{a4wide}
\usepackage{multirow}

\begin{document}
\begin{tabular}{|c|c|} \hline
$[a, b] := \{x \in \mathbb{R}: a \leq x \leq b\}$ & kompaktes Intervall \\ \hline
$(a, b) := \{x \in \mathbb{R}: a < x < b\}$ & offenes, beschr"anktes Intervall \\ \hline
$[a, b) := \{x \in \mathbb{R}: a \leq x < b\}$ & \multirow{2}{*}{halboffenes, beschr"anktes Intervall} \\
$(a, b] := \{x \in \mathbb{R}: a < x \leq b\}$ & \\ \hline  %%<<<here
$[a, \infty) := \{x \in \mathbb{R}: a \leq x\}$ & \multirow{2}{*}{abgeschlossenes, unbeschr"anktes Intervall}  \\
$(-\infty, b] := \{x \in \mathbb{R}: x \leq b\}$ & \\ \hline %%<<< here
$(a, \infty) := \{x \in \mathbb{R}: a < x\}$ & \multirow{2}{*}{offenes, unbeschr"anktes Intervall} \\
$(-\infty, b) := \{x \in \mathbb{R}: x < b\}$ & \\ \hline %%%<<<<<here
\end{tabular}
\end{document}


-

In your table you have some errors resulting in the bad looking of your table. I suggest you write always the ampersands in the same column as I did. So you find easier missing ampersands in your table. Don't forget to write all necceccary & for your table, even if an empty cell is following.

Package a4wide is outdated, please do not use it longer. See l2tabu.pdf (texdoc l2tabu) for more information.

You will get better looking tables without lines, have a look into package booktabs and its manual (texdoc booktabs).

Corrected and pretty printed MWE:

%http://tex.stackexchange.com/questions/83415/multirow-long-name-breaking-ruining-layout
\documentclass[11pt, a4paper, fleqn, parskip]{scrartcl}

\usepackage[utf8]{inputenc}  % original: utf8x
\usepackage[ngerman]{babel}
\usepackage{mathtools, amssymb}
%\usepackage{a4wide}         % outdated, see l2tabu.pdf
\usepackage{multirow}

\begin{document}
\begin{tabular}{|c|c|} \hline
$[a, b] := \{x \in \mathbb{R}: a \leq x \leq b\}$ & kompaktes Intervall              \\ \hline
$(a, b) := \{x \in \mathbb{R}: a < x < b\}$       & offenes, beschränktes Intervall  \\ \hline
$[a, b) := \{x \in \mathbb{R}: a \leq x < b\}$    & \multirow{2}{*}{halboffenes, beschränktes Intervall} \\
$(a, b] := \{x \in \mathbb{R}: a < x \leq b\}$    &                                  \\ \hline
$[a, \infty) := \{x \in \mathbb{R}: a \leq x\}$   & \multirow{2}{*}{abgeschlossenes, unbeschränktes Intervall} \\
$(-\infty, b] := \{x \in \mathbb{R}: x \leq b\}$  &                                  \\ \hline
$(a, \infty) := \{x \in \mathbb{R}: a < x\}$      & \multirow{2}{*}{offenes, unbeschränktes Intervall} \\
$(-\infty, b) := \{x \in \mathbb{R}: x < b\}$     &                                  \\ \hline
\end{tabular}
\end{document}

-
 WOHEY :D Thanks to all contributors for the promt reply, you really helped me out :) – armoredscarves Nov 20 '12 at 22:44 @armoredscarves: If the answer was helpfuk for you please upvote it. The most helpfull answer for you please accept. Thats the way we say here "thank you" for helping :-) – Kurt Nov 20 '12 at 23:19