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I couldn't find any option that lets me expand the vertical space between rows in tabular environment. For example,

\begin{tabular}{c c}
    $f^{(n)}(x)$ & $f^{(n)}(0)$ \\
    $-2xe^{-x^{x^{x^2}}}$ & 0 
\end{tabular}

This looks awkward because of the powers of x. I wonder if there is an option to expand the vertical spaces between these rows?

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1 Answer

up vote 35 down vote accepted

You have at least three options here:

  • Increasing the array stretch factor using \renewcommand{\arraystretch}{<factor>} where <factor> is a numeric value:

    \documentclass{article}
    \begin{document}
    \renewcommand{\arraystretch}{2}
    \begin{tabular}{c c}
      $f^{(n)}(x)$ & $f^{(n)}(0)$ \\\hline
      $-2xe^{-x^{x^{x^2}}}$ & 0
    \end{tabular}
    \end{document}
    

    enter image description here

  • Explicitly specifying the row skip using \\[<len>] where <len> is any length:

    \documentclass{article}
    \begin{document}
    \begin{tabular}{c c}
      $f^{(n)}(x)$ & $f^{(n)}(0)$ \\[1cm] \hline
      $-2xe^{-x^{x^{x^2}}}$ & 0
    \end{tabular}
    \end{document}
    

    enter image description here

  • Modifying the array package's \extrarowheight length using \setlength{\extrarowheight}{<len>}, where <len> is any length:

    \documentclass{article}
    \usepackage{array}% http://ctan.org/pkg/array
    \begin{document}
    \setlength{\extrarowheight}{20pt}
    \begin{tabular}{c c}
      $f^{(n)}(x)$ & $f^{(n)}(0)$ \\\hline
      $-2xe^{-x^{x^{x^2}}}$ & 0
    \end{tabular}
    \end{document}
    

    enter image description here

In the above examples, the \hline was used to illustrate the effect of the different styles used. The choice depends on the specific usage/typesetting of the tabular within your document.

Finally, if the contents of your entire tabular is math, you could typeset it in an array environment:

\[
  \begin{array}{c c}
    f^{(n)}(x) & f^{(n)}(0) \\
    -2xe^{-x^{x^{x^2}}} & 0
  \end{array}
\]
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Thanks a lot for the answer as well as many other alternative solutions ;) –  Chan Aug 28 '11 at 2:10
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