\RequirePackage[style=numeric-comp,%
sorting=none,%
maxbibnames=3,%
minbibnames=3,%
maxcitenames=1,%
mincitenames=1,%
isbn=false,%
url=false,%
doi=false,%
eprint=false,%
related=false]{biblatex}
\renewbibmacro{in:}{}

\RequirePackage{tcolorbox}
\newtcolorbox{abox}{colback=red!5!white, colframe=red!75!black, coltitle=red!80!black,
  fonttitle=\bfseries, title=Attention, attach title to upper={\ --\ }}
\newtcolorbox[auto counter]{ebox}[1]{colbacktitle=blue!10!white, colback=blue!5!white,coltitle=black,
  title={Example~\thetcbcounter \ --\ #1},fonttitle=\bfseries}
\newtcolorbox{nbox}{colback=green!0.5!white, colframe=green!960!black, coltitle=black,
  fonttitle=\bfseries, title=Note, attach title to upper={\ --\ }}

%\RequirePackage[T1]{fontenc}
%\RequirePackage[utf8]{inputenc}
\RequirePackage{amsmath}
\RequirePackage{amssymb}
\RequirePackage{amsfonts}
\RequirePackage{amssymb}
\RequirePackage{amsthm}


\RequirePackage[labelfont={rm},labelformat=parens,format=hang,parskip=5pt,subrefformat=subparens]{subfig}
\RequirePackage[textfont={normalfont}, labelfont={sc,bf}, labelsep=period, parskip=1pt, aboveskip=5pt,
indention=18pt]{caption}

\RequirePackage{supertabular}
\RequirePackage{booktabs}
\RequirePackage{longtable}
\renewcommand{\arraystretch}{1.25} % space between rows in the tables
\usepackage[figuresleft]{rotating} % to use \begin{sidewaysfigure} ... \end{sidewaysfigure} and rotate figs
\RequirePackage{multirow}
\RequirePackage[section]{placeins}
\RequirePackage{xcolor}
\RequirePackage[citecolor=blue, urlcolor=blue, colorlinks, linkcolor=black]{hyperref}
\RequirePackage{varioref}
%\labelformat{section}{secci{\'o}n~#1}
%\labelformat{subsection}{secci{\'o}n~#1}
%\labelformat{equation}{(#1)}
%\labelformat{figure}{f\/igura~#1}
%\labelformat{table}{tabla~#1}
% Para modificar el separador de caption, ie. Figura 1. en lugar de Figura 1:

\RequirePackage{kantlipsum}

\RequirePackage{verbatim}
\RequirePackage{shortvrb} % using \MakeShortVerb{\|} and \DeleteShortVerb{\|} you can define a new verbatim
                          % environment setter

\RequirePackage[figuresleft]{rotating}
\RequirePackage{graphicx}
\RequirePackage{multicol}
\RequirePackage{geometry}
\geometry{
  a4paper,
  total={150mm,240mm},
  left=20mm,
  %top=20mm,
}
\parskip=1mm
%\parindent=0mm

\RequirePackage[all]{xy}

% some defined commands
\newcommand{\R}{\mathbb{R}}
\newcommand{\Z}{\mathbb{Z}}
\newcommand{\Q}{\mathbb{Q}}
\newcommand{\N}{\mathbb{N}}
\newcommand{\I}{\mathbb{I}}
\newcommand{\raya}{\rule{2cm}{0.01cm}\\}
\newcommand{\ds}{\displaystyle}
\newcommand{\sen}{\mathop{\rm sen}\nolimits}
%\newcommand{\tanh}{\mathop{\rm tan}\nolimits}
\newcommand{\senh}{\mathop{\rm senh}\nolimits}
\newcommand{\arcsen}{\mathop{\rm arcsen}\nolimits}
\newcommand{\arcsec}{\mathop{\rm arcsec}\nolimits}
\newcommand{\bc}{\begin{center}}
\newcommand{\ec}{\end{center}}
\newcommand{\be}{\begin{enumerate}}
\newcommand{\ee}{\end{enumerate}}
\newcommand{\A}{\,\textup{\r{A}}}
\newcommand{\C}{\,^{\circ}C}
\newcommand{\degree}{\,^{\circ}}
\newcommand{\erfc}{\mathop{\rm erfc}\nolimits}
\newcommand{\erf}{\mathop{\rm erf}\nolimits}
\newcommand{\rb}[1]{\raisebox{-.4ex}[0pt]{#1}}