\documentclass[landscape]{article}
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\mynewfont\negthinspace#1\B\negthinspace \let\next=\dimin\fi \next}
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\begin{document}
\begin{center}
\Huge
Most math posters only show approximations of these important numbers
\\
Here are the exact values (if you can read them :-)
\end{center}
\fontsize{85}{0}\selectfont
\noindent

\begin{tabular}{rl}
\color[hsb]{1,1,1}
$1/3$&$=$\,\decreasingdigits%
{0}{33333333333333333333333333333333333333333333333333333333333333333333333333}
\\
\color[hsb]{.8,1,1}
$1$&$=$\,\decreasingdigits%
{0}{99999999999999999999999999999999999999999999999999999999999999999999999999}
\\
\color[hsb]{.6,1,1}
$\sqrt 2$&$=$\,\decreasingdigits%
{1}{41421356237309504880168872420969807856967187537694807317667973799073247846}
\\
\color[hsb]{.4,1,1}
$\sqrt 3$&$=$\,\decreasingdigits%
{1}{73205080756887729352744634150587236694280525381038062805580697945193301690}
\\
%$\sqrt 5$&$=$\,\decreasingdigits%
%{2}{2360679774997896964091736687312762354406183596115257242708972454105209256}
%\\
\color[hsb]{.2,1,1}
$e$&$=$\,\decreasingdigits%
{2}{71828182845904523536028747135266249775724709369995957496696762772407663035}
\\
\color[hsb]{0,1,1}
$\pi$&$=$\,\decreasingdigits%
{3}{14159265358979323846264338327950288419716939937510582097494459230781640628}
\end{tabular}

\begin{center}\tiny 
How to print an infinite decimal expansion in a finite space --- 
Math Poster 2007 --- Peter Jipsen --- Chapman University --- math.chapman.edu
\end{center}
\end{document}