Question about tabular

Question

I need some table in LaTeX. As you can see, my LaTeX code is following

\setlength{\extrarowheight}{7.6pt}
\begin{footnotesize}
\begin{tabular}{l|m{7cm}}
\hline
\hline
Workloads & Applications  \\
\hline
\hline
mix-1 & mcf, libquantum, \\
\hline
mix-2 & sphinx3, soplex, \\
\hline
mix-3 & omnetpp, xalancbmk, \\
\hline
\hline
\end{tabular}
\end{footnotesize}

Actually, I could not understand array packages. I meant it's m{2.5cm}'s use method. I want to align a text in right side into vertical center like left side.

Can you help me? Some explain in other site make me confused because I'm not expert in LaTeX.

Welcome to TeX.SE. Your table seems to work fine if you comment out the setlength{\extrarowheight}{7.6pt} and include \usepackage{array} in the preamble. ` — Peter Grill, Nov 16 '11 at 05:45

score 4 · Answer 1 · edited Jun 11 '17 at 09:12

In terms of vertically centering the content in your tabular cells, you don't need to set \extrarowheight. However, using m{<len>} (where <len> is any recognized TeX length) becomes useful when your right-hand column has a little more substance to it (that is, it is longer).

If you're interested in more vertical padding around the entries, modify \arraystretch instead. It provides a factor with which the rows are stretched/expanded:

enter image description here

\documentclass{article}
\usepackage{array}% http://ctan.org/pkg/array
\begin{document}
\renewcommand{\arraystretch}{2.5}% array stretch factor
\begin{footnotesize}
\begin{tabular}{l|p{7cm}}
  \hline
  \hline
  Workloads & Applications  \\
  \hline
  \hline
  mix-1 & mcf, libquantum, \\
  \hline
  mix-2 & sphinx3, soplex, \\
  \hline
  mix-3 & omnetpp, xalancbmk, \\
  \hline
  \hline
\end{tabular}
\end{footnotesize}
\end{document}

For more information on padding of cell entries with a tabular (both horizontally and vertically), see Column and row padding in tables.

score 1 · Answer 2 · edited Jun 11 '17 at 15:26

I think your issue is your premable. If you include \usepackage{array} this compiles. Also, you should move the \setlength{\extrarowheight}{7.6pt} to be within a group (unless you want this to apply to all tables), you get:

enter image description here

\documentclass{article}
\usepackage{array}
\begin{document}
\begin{footnotesize} \setlength{\extrarowheight}{7.6pt}
\begin{tabular}{l|m{7cm}}
\hline
\hline
Workloads & Applications  \\
\hline
\hline
mix-1 & mcf, libquantum, \\
\hline
mix-2 & sphinx3, soplex, \\
\hline
mix-3 & omnetpp, xalancbmk, \\
\hline
\hline
\end{tabular}
\end{footnotesize}
\end{document}

If you want both columns to be vertically centered then you have to use

\begin{tabular}{m{1.5cm}|m{7cm}}

which yields the following. The extra vertical space above the data is coming from your setting of \extrarowheight.

enter image description here

Question about tabular

2 Answers2