Text Formatting ⇒ Vertical Spacing in 'array' or 'tabular' Environment

[ghostanime2001]

Is there a way to control vertical spacing in a array environment other than using \\ ? for example \par\smallskip (or \medskip or \bigskip) ?

[localghost]

I see several possible approaches.

• You can control (globally or locally) the height of array or tabular rows by redefining \arraystretch.

  Code: Select all

  \renewcommand{\arraystretch}{1.2}

• The \\ command accepts an optional argument where you can add valid lengths.

  Code: Select all

  \\[\medskipamount]

• The booktabs package provides the \addlinespace command which adds a predefined amount of space but also accepts an optional argument.
• The tabu package provides the \extrarowsep command which stretches also table rows, but is restricted to the »tabu« environment provided by this package.

Thorsten

[ghostanime2001]

Are you sure

\\[\medskipamount]

this works? because I tried it in a array environment and it doesn't produce any desirable effect if I use \\[\smallskipamount] or \\[\medskipamount] or \\[\bigskipamount]

[localghost]

Are you sure

\\[\medskipamount]

this works? […]

Yes.

Code: Select all

\documentclass[11pt]{article}

\begin{document}
  \begin{tabular}{cc}\hline
    Table Content & Table Content \\[\smallskipamount]\hline
    Table Content & Table Content \\[\medskipamount]\hline
    Table Content & Table Content \\[\bigskipamount]\hline
  \end{tabular}

  \[
    \begin{array}{r@{\,=\,}l}\hline
      (a+b) & a^2+2ab+b^2 \\[\smallskipamount]\hline
      (a-b) & a^2-2ab+b^2 \\[\medskipamount]\hline
      (a+b)(a-b) & a^2-b^2 \\[\bigskipamount]\hline
    \end{array}
  \]
\end{document}

[ghostanime2001]

For anything else other than the below code it works but not with this code specifically. I don't understand why

Code: Select all

\documentclass[fleqn]{article}
\usepackage{amsmath}
\usepackage[makeroom]{cancel}
\usepackage[version=3]{mhchem}
\begin{document}
$\begin{array}[t]{@{}l@{}}
\ce{2Cu2O_{(s)} + $\underset{\begin{tabular}[t]{@{}c@{}}25.8 g\end{tabular}}{\ce{Cu2S_{(s)}}}$ -> 6Cu_{(s)} + SO2_{(g)}} \\[\bigskipamount]
\begin{aligned}[t]\ce{n_{\ce{Cu}}}&=\smash{\text{0.162 mol \cancel{\ce{Cu2S}}}\times\dfrac{\text{6 mol \ce{Cu}}}{\text{1 mol \cancel{\ce{Cu2S}}}}} \\ &=\text{0.972 mol}\end{aligned} \\[\bigskipamount]
\begin{aligned}[t]\text{theoretical yield}_{\ce{Cu}}&=\text{0.972 mol}\times\text{63.6 g/mol} \\ &=\text{61.82 g}\end{aligned}
\end{array}$
\end{document}

[localghost]

For anything else other than the below code it works but not with this code specifically. I don't understand why […]

The array environment is in in-line math mode. Try my first suggestion.

[krikru]

Inserting "[\bigskipamount]" after "\\" in the array environment doesn't have any effect at all for me. Maybe it matters how high your rows are? On each row in my array, I have a 4-by-4 matrix, which makes the rows quite high.