# Changing middle line to some other symbol. Latex Table

 \begin{tabular}{|c|c|}
\hline
$\langle R_1.Y \rangle$ & $\langle \dot{-}R_2.X, \dot{-}R_2.X \rangle$\\
\hline
$\langle a \rangle$  &   \\
\hline
\hline
$\langle b \rangle$ &  \\
\hline
&  $\langle c,c \rangle$ \\
\hline
\end{tabular}


Hi, I am trying to create a table in that only middle line for some rows, should be changed to disjunction symbol. (\vee). Alignment should be proper. Multi-column is not working properly.

• Please provide a full working MWE. Also, you have a lot of white space in your example which will create other effects. In particular, blank lines are treated as paragraph breaks. May 10 '15 at 4:29
• Just out of idle curiosity: How does the \dot{-} operator work?
– Mico
May 10 '15 at 9:01
• It's a notation from a research paper. Toggle the data May 10 '15 at 11:35

Do you mean this?

\documentclass{article}
\usepackage{mathtools,array}
\begin{document}
\begin{tabular}{|c|c|}
\hline
$\langle R_1.Y \rangle$ & $\langle \dot{-}R_2.X, \dot{-}R_2.X \rangle$\\
\hline
\multicolumn{1}{|r}{ $\langle a \rangle$} &  \multicolumn{1}{!{\clap{$\vee$}}c|}{$\langle b,b \rangle$} \\
\hline
\hline
\multicolumn{2}{|l|}{   $\langle a \rangle$}   \\
\hline
&  $\langle c,c \rangle$ \\
\hline
\end{tabular}
\end{document}


mathtools needed for \clap and array needed for ! in !{\clap{$\vee$}

Since this involves only math content, it is better to use array instead of tabular thereby saving all those $s. \documentclass{article} \usepackage{mathtools,array} \begin{document}$\begin{array}{|c|c|}
\hline
\langle R_1.Y \rangle &  \langle \dot{-}R_2.X, \dot{-}R_2.X \rangle\\
\hline
\multicolumn{1}{|r}{ \langle a \rangle} &  \multicolumn{1}{!{\mathclap{\vee}}c|}{\langle b,b \rangle } \\
\hline
\hline
\multicolumn{2}{|l|}{   \langle a \rangle }   \\
\hline
&  \langle c,c \rangle \\
\hline
\end{array}\$
\end{document}

• Genius :) Yes Perfectly May 10 '15 at 4:33