\ProvidesPackage{cours}
%%% XeLaTeX ONLY

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Packages
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\@ifclassloaded{beamer}{}{
\RequirePackage[xetex]{geometry}
\RequirePackage[pdfusetitle]{hyperref}
\RequirePackage{enumitem}
}
\RequirePackage{fontspec}
\RequirePackage{polyglossia}
\RequirePackage{csquotes}
\RequirePackage{amsmath, amssymb, amsbsy}
%\RequirePackage{mathtools}
\RequirePackage{siunitx}
\RequirePackage{stmaryrd}
\RequirePackage{dsfont}
\RequirePackage{array}
\RequirePackage{esvect}
\RequirePackage{tikz}
\RequirePackage{pgfplots}
\RequirePackage{amsthm}
\RequirePackage{pgfpages}
\RequirePackage[version=4]{mhchem}
%\RequirePackage{breqn}
\RequirePackage{listings}
\RequirePackage{esint}
\RequirePackage{tabularx}
\RequirePackage{multirow}
\RequirePackage{booktabs}
%\RequirePackage{multicol}
\RequirePackage{setspace}
%\RequirePackage{ulem}
\RequirePackage{cancel}
\RequirePackage{xcolor}
\RequirePackage{unicode-math}
%\RequirePackage[backend=biber,sorting=ynt]{biblatex}
\RequirePackage[notransparent]{svg}
\@ifclassloaded{beamer}{}{
\RequirePackage[list=true]{subcaption}
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Langue
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setdefaultlanguage{french}
\MakeOuterQuote{"}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Macros
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Dérivées / Intégrales
\renewcommand\d{\mathrm d}
\newcommand\dd{\mathop{}\,\mathrm d}
\newcommand\deriv[2]{\frac{\d#1}{\d#2}}
\newcommand\dderiv[2]{\frac{\d^2#1}{\d#2^2}}
\newcommand\der[2]{\frac{\d#1}{\d#2}}
\newcommand\dder[2]{\frac{\d^2#1}{\d#2^2}}
\newcommand\dpar[2]{\frac{\partial#1}{\partial#2}}
\newcommand\ddpar[2]{\frac{\partial^2#1}{\partial#2^2}}
\newcommand\derp[2]{\frac{\partial#1}{\partial#2}}
\newcommand\dderp[2]{\frac{\partial^2#1}{\partial#2^2}}
\newcommand\dint{\int\displaylimits}
\newcommand\doint{\oint\displaylimits}

%%% Symboles
\newcommand\bOmega{\boldsymbol\Omega}
\newcommand\bepsilon{\boldsymbol\epsilon}
\newcommand\btheta{\boldsymbol\theta}
\newcommand\bsigma{\boldsymbol\sigma}
\renewcommand\epsilon{\varepsilon}
%\renewcommand\C{\coulomb}
\newcommand\e{\mathrm e}

\newcommand\RR{\mathbb R}
\newcommand\CC{\mathbb C}
\newcommand\KK{\mathbb K}
\newcommand\NN{\mathbb N}
\newcommand\FF{\mathbb F}
\newcommand\EE{\mathbb E}
\newcommand\DD{\mathbb D}
\newcommand\fF{\mathcal F}
\newcommand\dD{\mathcal D}
\newcommand\lL{\mathcal L}
\newcommand\cC{\mathcal C}

\newcommand\id{\mathbf 1}
\newcommand\Id{\mathrm Id}

%%% Exposant / Indice à gauche
\newcommand\trans[1]{\vphantom{#1}^t#1}
\newcommand\eul[1]{\vphantom{#1}^E#1}
\newcommand\lag[1]{\vphantom{#1}^L#1}
\newcommand\indL[2]{\vphantom{#2}_{#1}#2}
\newcommand\expL[2]{\vphantom{#2}^{#1}#2}

%%% Opérateurs mathématiques
\newcommand\abs[1]{\left|#1\right|}
\newcommand\nor[1]{\left\lVert#1\right\lVert}
\newcommand\peigne{\mathbin{\rotatebox[origin=c]{-90}{$\exists$}}}
\newcommand\moy[1]{\left<#1\right>}
\newcommand\tor[2]{\vphantom{\begin{array}c#2\end{array}}_{#1}\left|\begin{array}c#2\end{array}\right.}

\DeclareMathOperator\grad{\u{grad}}
\DeclareMathOperator\ggrad{\uu{grad}}
\let\div\relax
\DeclareMathOperator\diverg{\u{div}}
\DeclareMathOperator\rot{\u{rot}}
\DeclareMathOperator\Ker{Ker}
\DeclareMathOperator\sign{sign}
\DeclareMathOperator\tr{tr}
\DeclareMathOperator\cotan{cotan}
\DeclareMathOperator\cond{cond}
\DeclareMathOperator\erf{erf}
\DeclareMathOperator\erfc{erfc}

%%% Vecteurs et Matrices
\renewcommand\u[1]{\underline{#1}}
\newcommand\uu[1]{\underline{\underline{#1}}}
\newcommand\ov[1]{\overline{#1}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Paramétrage des packages
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Styles de théorèmes
\theoremstyle{remark}
\newtheorem{rem}{Remarque}
\newtheorem*{rem*}{Remarque}
\theoremstyle{definition}
\newtheorem*{defi}{Définition}
\newtheorem{ex}{Exemple}
\newtheorem*{theo}{Théorème}

%%% Listings (code)
\lstset{numbers=left,
    numberstyle=\tiny\color{gray}\ttfamily,
    language=Python,
    basicstyle=\linespread{1.2}\ttfamily,
    columns = flexible,
    keywordstyle=\color{blue},
    commentstyle=\itshape\color{gray},
    stringstyle=\color{ForestGreen},
    frame=single,
    stepnumber=5,
    showstringspaces=true,
    backgroundcolor=\color{ultralightgray},
    morekeywords={>>>, np, array, zeros, shape},
    %breaklines=true,
    %prebreak=\textbackslash,
    alsoletter=>
}

%%% Tikz / PGF
\usetikzlibrary{shapes}
\pgfplotsset{compat=1.14}

%%% SIUnitX
\sisetup{
    mode = text,
    %locale                  = FR,
    %list-final-separator    = {\text{~et~}},
    %list-pair-separator     = {\text{~et~}},
    %range-phrase            = {\text{~à~}},
    retain-explicit-plus,
    forbid-literal-units,
    sticky-per,
    %inter-unit-product      = {.},
    per-mode                = power-positive-first,
    uncertainty-mode = separate,
    reset-text-series = false,
}
\SendSettingsToPgf
\DeclareSIUnit\met{met}
\DeclareSIUnit\gon{gon}
\DeclareSIUnit\bar{bar}
\DeclareSIUnit\psi{psi}
\DeclareSIUnit\deg{deg}

%%% Arcs
\DeclareFontFamily{OMX}{yhex}{}
\DeclareFontShape{OMX}{yhex}{m}{n}{<->yhcmex10}{}
\DeclareSymbolFont{yhlargesymbols}{OMX}{yhex}{m}{n}
\DeclareMathAccent{\wideparen}{\mathord}{yhlargesymbols}{"F3}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Mise en forme
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\@ifclassloaded{beamer}{}{
\geometry{
    a4paper,
    total={16cm, 24cm}
}
}

\RequirePackage[sfdefault]{inter}
%\setmainfont{Inter}
%\setsansfont{Inter}
\setmathfont[mathrm=sym]{Fira Math}
\setmonofont[Ligatures=TeX]{Fira Code}

\definecolor{ENSblue}{RGB}{0,119,139}
\definecolor{ultralightgray}{gray}{.95}

%\@ifclassloaded{letter}{}{
%    \renewcommand\thesection{\Roman{section}}
%    \renewcommand\thesubsection{\thesection.\arabic{subsection}}
%    \renewcommand\thesubsubsection{\thesubsection.\arabic{subsubsection}}
%}

\@ifclassloaded{beamer}{}{
    \hypersetup{
        citecolor=ENSblue,
        filecolor=ENSblue,
        colorlinks=true,
        linkcolor=ENSblue,
        urlcolor=ENSblue
    }

    \setlist[itemize]{nosep}
}

\setcounter{secnumdepth}{3}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Fonctions pgfplots
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\makeatletter
\pgfmathdeclarefunction{erf}{1}{%
  \begingroup
    \pgfmathparse{#1 > 0 ? 1 : -1}%
    \edef\sign{\pgfmathresult}%
    \pgfmathparse{abs(#1)}%
    \edef\x{\pgfmathresult}%
    \pgfmathparse{1/(1+0.3275911*\x)}%
    \edef\t{\pgfmathresult}%
    \pgfmathparse{%
      1 - (((((1.061405429*\t -1.453152027)*\t) + 1.421413741)*\t
      -0.284496736)*\t + 0.254829592)*\t*exp(-(\x*\x))}%
    \edef\y{\pgfmathresult}%
    \pgfmathparse{(\sign)*\y}%
    \pgfmath@smuggleone\pgfmathresult%
  \endgroup
}
\makeatother