April 20, 2010

LaTeX Environment: Kleinberg-Tardos style

funes latex

LaTeX Source

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\documentclass[12pt]{article}
\usepackage[papersize={120mm, 25mm}, text={100mm, 20mm}]{geometry}
\usepackage{concrete}
\usepackage{color}
\definecolor{MyGray}{rgb}{0.96,0.97,0.98}
 
\makeatletter\newenvironment{mybox}{%
   \begin{lrbox}{\@tempboxa}\begin{minipage}{0.97\textwidth}%
   \refstepcounter{equation}(\arabic{equation})}{\end{minipage}\end{lrbox}%
   \noindent\colorbox{MyGray}{\usebox{\@tempboxa}}}
\makeatother
 
\usepackage{amsmath}
% Matrix norm
\newcommand{\norm}[1]{\ensuremath{\lVert{#1}\rVert }}
% bold face letters for matrix and vector
\newcommand{\Ebf}{\ensuremath{\mathbf{E}}}
 
\begin{document}
\pagestyle{empty}
\begin{mybox}
$\displaystyle \quad |\sigma_k - \beta_k| \leq \norm{\Ebf}_2\quad$
for $1\leq k\leq n$.
\label{eq:1}
\end{mybox}
 
This can be proved by the following fact.
\begin{equation}
  \label{eq:2}
  x^2 + y^2 = z^2
\end{equation}
\end{document}
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