%%
%% Packages and local definitions
%%
%% load packages
% colors
\usepackage{color}
% include figures
\usepackage{graphicx}
% extra symbols and fonts
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{dsfont}
\usepackage{bm}
% extra array related commands
\usepackage{array}
%% dark green color
\definecolor{darkgreen}{RGB}{0,128,0}