## LaTeX forum ⇒ General ⇒ Using boolean Values

LaTeX specific issues not fitting into one of the other forums of this category.
ghostanime2001
Posts: 402
Joined: Fri May 20, 2011 9:41 am

### Re: Using boolean Values

The third tabular table seems too cramped but I like the first table, the horizontal line seems just a little bent

cgnieder
Site Moderator
Posts: 1993
Joined: Sat Apr 16, 2011 7:27 pm
If it looks too cramped you can adjust that, for example this way:

\documentclass{article}\usepackage[T1]{fontenc}\usepackage{array}\usepackage[version=3]{mhchem} \begin{document} \begingroup\setlength\extrarowheight{1ex}\begin{tabular}{>{$}c<{$}*{3}{|>{$}c<{$}}}         & \ce{CH3COOH <=>} & \ce{CH3COO- +} & \ce{H+} \\\hline  \ce{I} & 0  & 1   & 0.48 \\  \ce{C} & +x & -x  & -x \\  \ce{E} & x  & 1-x & 0.48-x\end{tabular}\endgroup \end{document}

The \begingroup ... \endgroup is only to keep the setting of \extrarowheight local. It is unnecessary if the whole table is inside of an environment.

Regards
site moderator & package author

ghostanime2001
Posts: 402
Joined: Fri May 20, 2011 9:41 am
I need a little more space between the top row compounds and the horizontal line also set by the same amount of row separation

cgnieder
Site Moderator
Posts: 1993
Joined: Sat Apr 16, 2011 7:27 pm
ghostanime2001 wrote:I need a little more space between the top row compounds and the horizontal line

Well, as you hopefully know you can specify an additional vertical skip in the optional argument of \\:
\documentclass{article}\usepackage[T1]{fontenc}\usepackage{array}\usepackage[version=3]{mhchem} \begin{document} \begingroup\setlength\extrarowheight{1ex}\begin{tabular}{>{$}c<{$}*{3}{|>{$}c<{$}}}   & \ce{CH3COOH <=>} & \ce{CH3COO- +} & \ce{H+} \\[.5ex]  \hline   \ce{I} & 0  & 1   & 0.48 \\   \ce{C} & +x & -x  & -x \\   \ce{E} & x  & 1-x & 0.48-x\end{tabular}\endgroup \end{document}

ghostanime2001 wrote:also set by the same amount of row separation

I don't understand what you mean by that...

Regards
site moderator & package author

ghostanime2001
Posts: 402
Joined: Fri May 20, 2011 9:41 am
What I meant to say was I wanted the same amount of whitespace between rows as between the first line of compounds and horizontal rule.