% obligatory package for template
\usepackage[utf8]{inputenc} % encoding 
\usepackage[T1]{fontenc} % encoding
\usepackage{soulutf8}   % encoding
\usepackage{lmodern} % front used  
\usepackage[english,french]{babel} % languages used 
\usepackage{array, multirow, multicol} % array types
\usepackage{vmargin} % vertical spaces
\usepackage{tikz} % geometrical figures
\usetikzlibrary{calc,trees,positioning,arrows,chains,shapes.geometric,
    decorations.pathreplacing,decorations.pathmorphing,shapes,
    matrix,shapes.symbols,shapes.multipart}
\usepackage{pgfplots} % pdf picture declaration
\usepackage{eso-pic} % background picture

% package for subfiles organization
\usepackage{subfiles} % many files used

