%%
%% A DANTE-Edition example
%%
%%
%% Copyright (C) 2010 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See
http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1
%%
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{129.70511pt}
\usepackage[utf8]{inputenc}
\usepackage[exponent-product=\cdot]{siunitx}
\usepackage{booktabs}
\sisetup{table-format=1.3,table-alignment=center}
\begin{document}
\begin{tabular}{%
S
S[table-auto-round]
S[table-auto-round,
table-number-alignment=center-decimal-marker]}\toprule
\emph{column} & \emph{column}
& \emph{column} \\\midrule
1.2 & 1.2 & 1.2 \\
1.234 & 1.2345 & 1.234\\
\bottomrule
\end{tabular}
\end{document}
