atlas-preamble.sty

\def\atlaspreamble@name{atlas-preamble}
\def\atlaspreamble@version{2.2.0}
\def\atlaspreamble@date{2022/06/12}
\def\atlaspreamble@msg{Niklas Bogensperger's custom preamble}
\def\atlaspreamble@url{https://github.com/niklasbogensperger/atlas-preamble}
\def\atlaspreamble@releaseinfo{\atlaspreamble@date \space v\atlaspreamble@version \space \atlaspreamble@msg \space \atlaspreamble@url}
\def\atlaspreamble@Error#1#2{\PackageError{\atlaspreamble@name}{#1}{#2}}
\def\atlaspreamble@Warning#1{\PackageWarning{\atlaspreamble@name}{#1}}
\def\atlaspreamble@Info#1{\PackageInfo{\atlaspreamble@name}{#1}}

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{\atlaspreamble@name}[\atlaspreamble@releaseinfo]


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Pre-options section
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% if-switches for options
\newif\if@captionsfootnotes
\newif\if@code
\newif\if@columns
\newif\if@computerscience
\newif\if@encoding
\newif\if@graphics
\newif\if@headings
\newif\if@lists
\newif\if@math
\newif\if@physics
\newif\if@probabilitytheory
\newif\if@references
\newif\if@spacings
\newif\if@tables
\newif\if@theorems
\newif\if@toc
\newif\if@typesetting

% if-switches for other uses
\newif\if@classuseschapter
\@ifclassloaded{book}{\@classuseschaptertrue}{}
\@ifclassloaded{report}{\@classuseschaptertrue}{}
\@ifclassloaded{memoir}{\@classuseschaptertrue}{}
\newif\if@languagegerman
\iflanguage{ngerman}{\@languagegermantrue}{}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Options section
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% options
\DeclareOption{captionsfootnotes}{\@captionsfootnotestrue}
\DeclareOption{code}{\@codetrue}
\DeclareOption{columns}{\@columnstrue}
\DeclareOption{computerscience}{\@computersciencetrue}
\DeclareOption{encoding}{\@encodingtrue}
\DeclareOption{graphics}{\@graphicstrue}
\DeclareOption{headings}{\@headingstrue}
\DeclareOption{lists}{\@liststrue}
\DeclareOption{math}{\@mathtrue}
\DeclareOption{physics}{\@physicstrue}
\DeclareOption{probabilitytheory}{\@probabilitytheorytrue}
\DeclareOption{references}{\@referencestrue}
\DeclareOption{spacings}{\@spacingstrue}
\DeclareOption{tables}{\@tablestrue}
\DeclareOption{theorems}{\@theoremstrue}
\DeclareOption{toc}{\@toctrue}
\DeclareOption{typesetting}{\@typesettingtrue}

% common option combinations
\newcommand{\baseoptions}{\@encodingtrue \@graphicstrue \@mathtrue \@tablestrue}
\newcommand{\extraoptions}{\@columnstrue \@liststrue \@spacingstrue \@typesettingtrue}

% base options
\DeclareOption{base}{%
	\baseoptions
}

% extra options
\DeclareOption{extra}{%
	\baseoptions
	\extraoptions
}

% experiment options
\DeclareOption{experiment}{%
	\baseoptions
	\extraoptions
	\@captionsfootnotestrue
	\@physicstrue
	\@referencestrue
}

% script options
\DeclareOption{script}{%
	\baseoptions
	\extraoptions
	\@captionsfootnotestrue
	\@headingstrue
	\@physicstrue
	\@referencestrue
	\@theoremstrue
}

% compsci options
\DeclareOption{compsci}{%
	\baseoptions
	\extraoptions
	\@computersciencetrue
	\@physicstrue
}

% probability options
\DeclareOption{probability}{%
	\baseoptions
	\extraoptions
	\@probabilitytheorytrue
}

% complete options
\DeclareOption{complete}{%
	\baseoptions
	\extraoptions
	\@captionsfootnotestrue
	\@computersciencetrue
	\@headingstrue
	\@physicstrue
	\@probabilitytheorytrue
	\@referencestrue
	\@theoremstrue
}

% all options
\DeclareOption{all}{%
	\baseoptions
	\extraoptions
	\@captionsfootnotestrue
	\@codetrue
	\@computersciencetrue
	\@headingstrue
	\@physicstrue
	\@probabilitytheorytrue
	\@referencestrue
	\@theoremstrue
}

% fallback for unknown options
\DeclareOption*{\atlaspreamble@Warning{Unknown option '\CurrentOption'}}

% process given options
\ProcessOptions\relax


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Post-options section -- activation of enabled options
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\if@encoding
	\RequirePackage{lmodern}
	% latin modern font
	% -> Provided by / TeXLive package to install: 'lm'
	% -> Caveats: should be loaded before package 'fontenc'
	\RequirePackage[T1]{fontenc}
	% encoding of rendered output
	% -> Provided by / TeXLive package to install: included in TeX distributions
	\RequirePackage[utf8]{inputenc}
	% encoding of source code input
	% -> Provided by / TeXLive package to install: included in TeX distributions
	% -> Caveats: loading it after package 'fontenc' is recommended when using option 'utf-8'
\fi


\if@typesetting
	% see https://texdoc.net/texmf-dist/doc/latex/l2tabu-english/l2tabuen.pdf for why these values are chosen
	\tolerance 1414
	\hbadness 1414
	\emergencystretch 1.5em
	\hfuzz 0.3pt
	\widowpenalty=10000
	\vfuzz \hfuzz
	\raggedbottom
\fi


\if@math
	\RequirePackage{amsmath}
	% necessary math features
	\RequirePackage{amssymb}
	% necessary math symbols
	% -> Provided by / TeXLive package to install: 'amsfonts'
	% -> Caveats: loads package 'amsfonts' (wanted behavior; we do not need to do it twice)
	\RequirePackage{bm}
	% better bold math symbols
	% -> Provided by / TeXLive package to install: 'tools'
	% -> Caveats: needs to be loaded after package 'amsmath' to avoid conflicts
	\RequirePackage{dsfont}
	% doublestroke math font
	% -> Provided by / TeXLive package to install: 'doublestroke'
	% -> Needed for: doublestroke '1' symbol, i.e. indicator function
	\RequirePackage{mathtools}
	% some extensions and fixes to amsmath
	% -> Caveats: loads package 'amsmath' if not already imported

	% -> Options (several packages): useful macros in auxiliary features section below
\fi


\if@theorems
	\RequirePackage{amsthm}
	% theorem environment

	% -> Options (amsthm): theorem style setup in auxiliary features section below
\fi


\if@physics
	\RequirePackage{physics}
	% several useful commands for physics
	\RequirePackage{siunitx}
	% worry-free SI units rendering

	\sisetup{separate-uncertainty=true}
	% -> Options (siunitx): separate all uncertainties from their values
\fi


\if@computerscience
	% see https://tex.stackexchange.com/a/230789 for why this combination of packages is chosen
	\RequirePackage{algorithm}
	% floating environment for algorithms
	% -> Provided by / TeXLive package to install: 'algorithms'
	\RequirePackage{algpseudocode}
	% pseudocode flavor of the package 'algorithmicx'
	% -> Provided by / TeXLive package to install: 'algorithmicx'
	\RequirePackage{complexity}
	% typesetting for complexity theoretic terms (e.g. P, NP, EXPSPACE, etc.)
	% -> Caveats: redefines \L (Ł), \P (¶), and \S (§); access these using \default{L,P,S}

	% -> Options (several packages): useful macros in auxiliary features section below
\fi


\if@probabilitytheory
	% nothing here yet...
	% -> Options: useful macros in auxiliary features section below
\fi


\if@graphics
	\RequirePackage{graphicx}
	% graphics embedding
	% -> Provided by / TeXLive package to install: 'graphics'
	\RequirePackage{wrapfig}
	% wrap text around figures
	% TODO: consider using package 'wrapfig2' instead
\fi


\if@tables
	\RequirePackage{array}
	% tables in their most essential form
	% -> Provided by / TeXLive package to install: 'tools'
	\RequirePackage{booktabs}
	% tables without horizontal lines for aesthetics
	\RequirePackage{tabularx}
	% tables which can automatically fit the environment width
	% -> Provided by / TeXLive package to install: 'tools'
	\RequirePackage{tabulary}
	% tables which can automatically fit the environment width and have variable width columns that can have different text alignments
	\RequirePackage{xltabular}
	% tables spanning more than one page (combines packages 'tabularx' and 'longtable')
	\RequirePackage{makecell}
	% several tweaks, including multiline cells
\fi


\if@captionsfootnotes
	\RequirePackage{caption}
	% essential tweaks for captions
	\RequirePackage{floatrow}
	% change caption positions and introduce the strict float option 'H'
	\RequirePackage[bottom, flushmargin, hang]{footmisc}
	% footnote customization
	% -> Import-time options (footmisc): ensure footnotes stay at the very bottom and make ones that span multiple lines indented to the same (modified) level

	\captionsetup{font=small, labelfont=bf, justification=raggedright, singlelinecheck=false}
	% -> Options (caption): small and bold font, left alignment, do not center one-line captions
	\floatsetup[table]{capposition=top}
	% -> Options (floatrow): table caption on top

	\renewcommand{\footnoterule}{\kern -3pt \hrule width \textwidth height 1pt \kern 2pt}
	% -> Options: footnoterule as wide as textwidth
\fi


\if@lists
	\RequirePackage{enumitem}
	% easily change properties of list environments

	\setlist{itemsep=0pt, labelsep=7pt, labelwidth=7pt, leftmargin=14pt, parsep=0pt, topsep=4pt}
	% -> Options (enumitem): spacings of list environments
\fi


\if@columns
	\RequirePackage{multicol}
	% multiple columns environment
	% -> Provided by / TeXLive package to install: 'tools'
\fi


\if@toc
	\RequirePackage[nottoc, numbib]{tocbibind}
	% include bibliography and other (usually omitted) indexes in the toc
	% -> Import-time options (tocbibind): include numbered bibliography in toc
	\RequirePackage{tocloft}
	% change style of the toc
	% -> Caveats: conflicts with package 'parskip'; loading it after 'parskip' causes the package to abort altogether, loading it before 'parskip' causes 'parskip' to throw a non-critical warning; see also https://tex.stackexchange.com/q/395779; results may vary depending on the typesetting engine

	\setcounter{tocdepth}{2}
	% -> Options: set depth of the toc to subsection level
	\if@classuseschapter
		\cftsetindents{chapter}{0em}{2.5em}
		% -> Options (tocloft): indent of chapter level in toc (if highest level in documentclass is 'chapter')
		\cftsetindents{section}{2.5em}{3em}
		% -> Options (tocloft): indent of section level in toc (if highest level in documentclass is 'chapter')
		\cftsetindents{subsection}{5.5em}{3.5em}
		% -> Options (tocloft): indent of subsection level in toc (if highest level in documentclass is 'chapter')
	\else
		\cftsetindents{section}{0em}{2.5em}
		% -> Options (tocloft): indent of section level in toc (if highest level in documentclass is 'section')
		\cftsetindents{subsection}{2.5em}{3em}
		% -> Options (tocloft): indent of subsection level in toc (if highest level in documentclass is 'section')
	\fi
\fi


\if@spacings
	\RequirePackage{parskip}
	% better handling of spacing for paragraphs
	% -> Caveats: conflicts with package 'tocloft'; loading it before 'tocloft' causes 'tocloft' to abort altogether, loading it after 'tocloft' causes it to throw a non-critical warning; see also https://tex.stackexchange.com/q/395779; results may vary depending on the typesetting engine

	\setlength{\parindent}{2em}
	% -> Options (parskip (associated)): larger indent of first line in paragraphs
	\setlength{\parskip}{0.5em}
	% -> Options (parskip (associated)): space between paragraphs
\fi


\if@code
	\@ifpackageloaded{caption}{}{\RequirePackage{caption}}
	% see comment for package 'minted' below
	\@ifpackageloaded{floatrow}{}{\RequirePackage{floatrow}}
	% see comment for package 'minted' below
	\RequirePackage[newfloat, outputdir=.texpadtmp]{minted}
	% formatting and highlighting for code
	% -> Caveats: package 'floatrow' needs to be loaded before to avoid conflicts when using import-time option 'newfloat'
	%			  package 'caption' needs to be loaded before to successfully parse the \newenvironment command
	% -> Import-time options (minted): 'outputdir' is used to hide intermediate files in Texpad's hidden folder for those files

	\newenvironment{code}{\captionsetup{type=listing}}{}
	% -> Options: create new environment 'code'
	\SetupFloatingEnvironment{listing}{within=section, name=Code}
	% -> Options: customize captions for new environment 'code' ('capposition=top' is not needed, as captions for listings are on top by default)
\fi


\if@headings
	\@ifpackageloaded{xcolor}{}{\RequirePackage{xcolor}}
	% see comment for package 'titlesec' below
	\RequirePackage{titlesec}
	% custom styles for headings
	% -> Caveats: package 'xcolor' needs to be loaded before to successfully parse the \titleformat commands below

	\if@classuseschapter
		\titleformat{\chapter}[hang]{\LARGE\bfseries}{\textcolor{white!75!black}{\hspace{-17mm}\makebox[11mm][r]{\thechapter}\hspace{6mm}}}{0pt}{\LARGE\bfseries}
		% -> Options (titlesec): style of chapter headings (if level 'chapter' exists in documentclass)
	\fi
	\titleformat{\section}[hang]{\Large\bfseries}{\textcolor{white!75!black}{\hspace{-17mm}\makebox[11mm][r]{\thesection}\hspace{6mm}}}{0pt}{\Large\bfseries}
	% -> Options (titlesec): style of section headings
	\titleformat{\subsection}[hang]{\large\bfseries}{\textcolor{white!75!black}{\hspace{-17mm}\makebox[11mm][r]{\thesubsection}\hspace{6mm}}}{0pt}{\large\bfseries}
	% -> Options (titlesec): style of subsection headings
\fi


\if@references
	\@ifpackageloaded{xcolor}{}{\RequirePackage{xcolor}}
	% see comment for package 'hyperref' below

	\RequirePackage[hyperfootnotes=false, hypertexnames=false, pdfusetitle]{hyperref}
	% basic cross-reference commands
	% -> Caveats: package 'hyperref' should almost always be imported last
	%			  package 'xcolor' needs to be loaded before to successfully parse the \hypersetup command below
	% -> Import-time options (hyperref): prohibit link creation in footnotes (would otherwise conflict with package 'footmisc'), enable the more robust but less guessable way to count links, and write correct author and title metadata to pdf file
	\RequirePackage{cleveref}
	% enhanced cross-reference features
	% -> Caveats: package 'cleveref' should almost always be imported last and must be imported after package 'hyperref'
	%			  use with package 'amsthm' to allow the theorem type to be determined automatically; all \newtheorem definitions must be placed after package 'cleveref' is loaded
	%			  when using package 'babel' for support for other languages, pass the language optional argument not to the babel package but to the documentclass, so cleveref recognizes it as well

	\hypersetup{colorlinks, allcolors={blue!65!black}}
	% -> Options (hyperref): setup colors of links
\fi


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Post-options section -- auxiliary features of some enabled options
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\if@math
	%% -> Options (several packages): useful math macros (see examples folder for usage)

	\@ifpackageloaded{xparse}{}{\RequirePackage{xparse}}
	% high-level interface for advanced document-level commands (\NewDocumentCommand, \IfNoValueTF, etc.)
	% -> Provided by / TeXLive package to install: 'l3packages'

	% use "blackboard bold"-style characters for common number sets
	% avoiding clashes with the complexity package that is imported with the computerscience option
	\if@computerscience
		\let\R\Rcomplexity
		\let\K\Kcomplexity
		\let\C\Ccomplexity
	\fi
	\newcommand{\C}{\mathbb{C}}
	\newcommand{\R}{\mathbb{R}}
	\newcommand{\Q}{\mathbb{Q}}
	\newcommand{\Z}{\mathbb{Z}}
	\newcommand{\N}{\mathbb{N}}
	\newcommand{\K}{\mathbb{K}}

	% "double stroke"-style character for the identity (not available via "blackboard bold" fonts)
	% can also be used with an argument to signify an indicator function with a subscript
	\NewDocumentCommand{\1}{g}{%
		\ensuremath{\mathds{1}%
		\IfNoValueTF{#1}
			{}
			{_{#1}}
		}%
	}

	% easily declare mathematical sets with either a single argument or two arguments for pipe-separated condition
	\NewDocumentCommand{\Set}{m g}{%
		\ensuremath{\left\{ #1%
		\IfNoValueTF{#2}
			{}
			{\ \middle|\ #2}
		\right\}%
		}%
	}

	% easy scaling delimiters for inner product sharp angle braces
	\DeclarePairedDelimiterX{\inp}[2]{\langle}{\rangle}{#1, #2}

	% nice spacing for argmin and argmax operators
	\DeclareMathOperator*{\argmax}{arg\,max}
	\DeclareMathOperator*{\argmin}{arg\,min}

	% use some alternative "var" greek letters by default and redefine the old ones
	\let\oldepsilon\epsilon
	\renewcommand{\epsilon}{\ensuremath{\varepsilon}}
	\let\oldrho\rho
	\renewcommand{\rho}{\ensuremath{\varrho}}
	\let\oldphi\phi
	\renewcommand{\phi}{\ensuremath{\varphi}}
\fi


\if@theorems
	%% -> Options (amsthm): theorem style setup (see examples folder for usage)

	% fix paragraph spacing if package 'parskip' is loaded; see https://tex.stackexchange.com/a/22130
	\@ifpackageloaded{parskip}{\def\thm@space@setup{\thm@preskip=\parskip \thm@postskip=0pt}}{}

	% localization
	\newcommand{\localizationtheorem}{Theorem}
	\newcommand{\localizationclaim}{Claim}
	\newcommand{\localizationproposition}{Proposition}
	\newcommand{\localizationlemma}{Lemma}
	\newcommand{\localizationobservation}{Observation}
	\newcommand{\localizationcorollary}{Corollary}
	\newcommand{\localizationdefinition}{Definition}
	\newcommand{\localizationexample}{Example}
	\newcommand{\localizationexercise}{Exercise}
	\newcommand{\localizationremark}{Remark}
	\newcommand{\localizationnotation}{Notation}
	\newcommand{\localizationprerequisites}{Prerequisite(s):}
	\newcommand{\localizationstatements}{Statement(s):}
	\if@languagegerman
		\renewcommand{\localizationtheorem}{Satz}
		\renewcommand{\localizationclaim}{Behauptung}
		\renewcommand{\localizationproposition}{Proposition}
		\renewcommand{\localizationlemma}{Lemma}
		\renewcommand{\localizationobservation}{Observation}
		\renewcommand{\localizationcorollary}{Korollar}
		\renewcommand{\localizationdefinition}{Definition}
		\renewcommand{\localizationexample}{Beispiel}
		\renewcommand{\localizationexercise}{Übung}
		\renewcommand{\localizationremark}{Bemerkung}
		\renewcommand{\localizationnotation}{Notation}
		\renewcommand{\localizationprerequisites}{Gegeben:}
		\renewcommand{\localizationstatements}{Aussage(n):}
	\fi

	% predefined style 'plain' for statements (numbered and unnumbered variants)
	\theoremstyle{plain}
	\newtheorem{theorem}{\localizationtheorem}[section]
	\newtheorem*{theorem*}{\localizationtheorem}
	\newtheorem{claim}[theorem]{\localizationclaim}
	\newtheorem*{claim*}{\localizationclaim}
	\newtheorem{proposition}[theorem]{\localizationproposition}
	\newtheorem*{proposition*}{\localizationproposition}
	\newtheorem{lemma}[theorem]{\localizationlemma}
	\newtheorem*{lemma*}{\localizationlemma}
	\newtheorem{observation}[theorem]{\localizationobservation}
	\newtheorem*{observation*}{\localizationobservation}
	\newtheorem{corollary}[theorem]{\localizationcorollary}
	\newtheorem*{corollary*}{\localizationcorollary}

	% predefined style 'definition' for definitions (numbered and unnumbered variants) and other important items (only unnumbered variant)
	\theoremstyle{definition}
	\newtheorem{definition}[theorem]{\localizationdefinition}
	\newtheorem*{definition*}{\localizationdefinition}
	\newtheorem*{example}{\localizationexample}
	\newtheorem*{exercise}{\localizationexercise}

	% custom style 'newremark' for less important items (only unnumbered variants)
	\newtheoremstyle{newremark}{}{}{\slshape}{}{\scshape}{.}{0.4em}{}
	\theoremstyle{newremark}
	\newtheorem*{remark}{\localizationremark}
	\newtheorem*{notation}{\localizationnotation}

	% custom style 'summtheorem' for summaries of statements (only unnumbered variant)
	\newtheoremstyle{summtheorem}{}{}{\itshape}{}{\bfseries}{.}{\newline}{}
	\theoremstyle{summtheorem}
	% commands for use within summaries of statements (for division into prerequisites and statements)
	\newcommand{\preq}[1]{%
		\par
		{\normalfont\scshape\localizationprerequisites} #1%
	}
	\newcommand{\state}[1]{%
		\par
		{\normalfont\scshape\localizationstatements} #1%
	}
	% creation of 'summarythm*' environment that takes a theorem name as mandatory argument (achieved through a workaround which involves invoking a \newtheorem with the new empty command \thistheoremname and re-initializing \thistheoremname with the mandatory argument every time the environment is started)
	% within this environment \parindent is always set to 0
	\newcommand{\thistheoremname}{}
	\newtheorem*{genericthm*}{\thistheoremname}
	\newenvironment{summarythm*}[1]
		{\renewcommand{\thistheoremname}{#1}%
		 \setlength{\parindent}{0em}%
		 \begin{genericthm*}}
		{\end{genericthm*}}

	% predefined style 'definition' for summaries of definitions (only unnumbered variant)
	\theoremstyle{definition}
	% creation of 'summarydef*' environment that takes a definition name as mandatory argument (for a description of the employed workaround, see 'summarythm*' above)
	% within this environment \parindent is always set to 0
	\newcommand{\thisdefinitionname}{}
	\newtheorem*{genericdef*}{\thisdefinitionname}
	\newenvironment{summarydef*}[1]
		{\renewcommand{\thisdefinitionname}{#1}%
		 \setlength{\parindent}{0em}%
		 \begin{genericdef*}}
		{\end{genericdef*}}
\fi


\if@computerscience
	%% -> Options (several packages): useful computer science macros (see examples folder for usage)

	% asymptotic notation shortcuts
	\newcommand{\Oh}[1]{\ensuremath{\mathcal{O}\left(#1\right)}}
	\newcommand{\oh}[1]{\ensuremath{o\left(#1\right)}}
	\newcommand{\Th}[1]{\ensuremath{\Theta\left(#1\right)}}
	\newcommand{\Om}[1]{\ensuremath{\Omega\left(#1\right)}}
	\newcommand{\om}[1]{\ensuremath{\omega\left(#1\right)}}

	% algorithm
	\newcommand{\algorithminput}{\textbf{Input: }}
	\newcommand{\algorithmoutput}{\textbf{Output: }}
	\algnewcommand{\CommentLine}[1]{\State \(\triangleright\) #1} % comment on a single line
	\algdef{SE}{RepeatTimes}{EndRepeatTimes}[1]{\textbf{repeat } \(\mbox{#1}\) \textbf{times}}{\textbf{end}} % loops
\fi


\if@probabilitytheory
	%% -> Options: useful probability theory macros (see examples folder for usage)

	\@ifpackageloaded{amsmath}{}{\RequirePackage{amsmath}}
	\@ifpackageloaded{amssymb}{}{\RequirePackage{amssymb}}
	\@ifpackageloaded{xparse}{}{\RequirePackage{xparse}}
	% high-level interface for advanced document-level commands (\NewDocumentCommand, \IfNoValueTF, etc.)
	% -> Provided by / TeXLive package to install: 'l3packages'
	\@ifpackageloaded{xspace}{}{\RequirePackage{xspace}}
	% decides whether to insert a space to replace one "eaten" by the TeX engine (needed for intelligent periods after \iid command)
	% -> Provided by / TeXLive package to install: 'tools'

	% use a blackboard-bold 'P' for probability instead of the default 'Pr'
	% can also be used with an argument to put an event in square brackets
	\let\oldPr\Pr
	\RenewDocumentCommand{\Pr}{g}{%
		\ensuremath{\operatorname{\mathbb{P}}%
		\IfNoValueTF{#1}
			{}
			{\left[ #1 \right]}
		}%
	}

	% expectation
	% avoiding a clash with the complexity package that is imported with the computerscience option
	\if@computerscience
		\let\E\Ecomplexity
	\fi
	\NewDocumentCommand{\E}{m g}{%
		\ensuremath{\operatorname{\mathbb{E}}%
		\IfNoValueTF{#2}
			{}
			{_{#1}}
		\left[%
		\IfNoValueTF{#2}
			{#1}
			{#2}
		\right]%
		}%
	}

	% factorial moment
	\NewDocumentCommand{\Efact}{m m}{%
		\ensuremath{\operatorname{\mathbb{E}}_{#1}\left[ #2 \right]}%
	}

	% variance
	\NewDocumentCommand{\Var}{m g}{%
		\ensuremath{\operatorname{Var}%
		\IfNoValueTF{#2}
			{}
			{_{#1}}
		\left[%
		\IfNoValueTF{#2}
			{#1}
			{#2}
		\right]%
		}%
	}

	% covariance
	\NewDocumentCommand{\Cov}{m g}{%
		\ensuremath{\operatorname{Cov}%
		\IfNoValueTF{#2}
			{}
			{_{#1}}
		\left(%
		\IfNoValueTF{#2}
			{#1}
			{#2}
		\right)%
		}%
	}

	% shorthand for "independent and identically distributed"
	% last period is omitted depending on whether a period already comes after it
	\newcommand{\iid}{i.i.d\@ifnextchar.{}{.\@\xspace}}

	% distributions
	\newcommand{\Bernoulli}[1]{\operatorname{Bernoulli}\left( #1 \right)}
	\newcommand{\Bin}[2]{\operatorname{Bin}\left( #1, #2 \right)}
	\newcommand{\Po}[1]{\operatorname{Po}\left( #1 \right)}
\fi

\endinput