[texhax] equal width tabular columns when using a long multicolumn heading

jtzzaa11-texhax1 at yahoo.com jtzzaa11-texhax1 at yahoo.com
Fri Dec 2 08:24:17 CET 2011


I have a tabular with several columns preceded by a heading in a multicolumn. However, the heading is wider than the combined width of the columns, which results in the columns having different widths. Here is a minimal example:

\begin{tabular}{ c c c }
\multicolumn{3}{c}{long heading}    \\    
1 & 2 & 3\\

which results in 

long heading
1 2         3

so the last column is much wider than the first two.
Is there a way to automatically generate equal width columns whose combined width equals the width of the long heading?. I am trying to avoid manually fixing the width of the columns, for example, using p{2cm}.


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