<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%%
%% The LaTeX Companion, 3ed
%%
%% Example 6-7-11 on page I-483 in "dcolumn --- Decimal column alignments".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.0pt}
%StartShownPreambleCommands
\usepackage{dcolumn}
\newcolumntype{d}[1]{D{.}{\cdot}{#1}}
\newcolumntype{.}{D{.}{.}{-1}}
\newcolumntype{,}{D{.}{,}{2}}
%StopShownPreambleCommands

\begin{document}
\begin{tabular}{|d{-1}|d{2}|.|,|}
   1.2    &amp; 1.2    &amp; 1.2     &amp; 1.2      \\
   1.23   &amp; 1.23   &amp; 12.34   &amp; 12.34    \\
   1121.2 &amp; 1121.2 &amp; 0.3333  &amp; 0.3333   \\
   184    &amp; 184    &amp; \pm 100  &amp; \pm 100 \\
   .4     &amp; .4     &amp; ok?     &amp; no!      \\
   -0.55  &amp; -0.55  &amp; -0.55   &amp; -0.55    \\
   0.0    &amp; 0.0    &amp; 0.0     &amp; 0.0
\end{tabular}
\end{document}
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