D. R. Evans skrev:
> I've looked in my LaTeX books and googled, but can't find an answer to
> a simple question: how do I center a column in a table when that
> column has a known, fixed width?
Load the array package and define a new column type.
\usepackage{array}
...
\newcolumntype{C}{>{\centering\arraybackslash}p{2cm}}
...
\begin{tabular}{C...}