View difference between Paste ID: zMLt6HD6 and ejmzBEDC

 \documentclass[a4paper,12pt,fleqn]{scrartcl}
 
 %%------------------------------------------------------------------------------
 % Various
 %%------------------------------------------------------------------------------
 %\usepackage{fixltx2e}                  % Various fixes.
 %\usepackage{xltxtra}                   % Not really necessary unless you need to use the \XeLaTeX{}.
 %\usepackage{etoolbox}                  % Defines \newrobustcmd{} and other goodies.
 %\usepackage{xspace}                    % Read the documentation, you may need it when you define new commands
 %\usepackage{import}                    % sane imports. Much better than \input{} command.
 
 %%------------------------------------------------------------------------------
 % Geometry - Layout
 %%------------------------------------------------------------------------------
 %\usepackage[a4paper,xetex]{geometry}   % Customize page layout
 %\usepackage{multicol}                  % Use multiple columns
 %\usepacakge{pdflscape}                 % Pages in landscape mode
 %\usepackage{parskip}                   % Use it when you want your paragraphs
                                         % to be separated by an extra space.
 
 
 %%------------------------------------------------------------------------------
 % Graphics - Colors
 %%------------------------------------------------------------------------------
 %\usepackage{graphicx}                  % including figures
 %\usepackage{xcolor}                    % More options with colors
 
 %%------------------------------------------------------------------------------
 % Languages
 %%------------------------------------------------------------------------------
 %% Greek language hyphenation rules
 %\usepackage{xgreek}
 %% Change hyphenation rules automatically when switching from greek to english glyphs.
 %\usepackage[Greek,Latin]{ucharclasses}
 %\setTransitionsForGreek{\setlanguage{greek}}{\setlanguage{english}}
 
 %%------------------------------------------------------------------------------
 % Fonts
 %%------------------------------------------------------------------------------
 %\usepackage{fontspec}
 %\setmainfont[%
     %Kerning=On,
     %Mapping=tex-text,
     %UprightFont = Minion Pro,
     %ItalicFont = Minion Pro Italic,
     %SlantedFont = Minion Pro Italic,
     %BoldFont = Minion Pro Semibold,
     %BoldItalicFont = Minion Pro Semibold Italic,
     %BoldSlantedFont = Minion Pro Semibold Italic,
     %SmallCapsFont = Minion Pro,
         %]{Minion Pro}
 %\setsansfont[%
     %Kerning=On,
     %Mapping=tex-text,
     %UprightFont = Myriad Pro,
     %ItalicFont = Myriad Pro Italic,
     %SlantedFont = Myriad Pro Italic,
     %BoldFont = Myriad Pro Semibold,
     %BoldItalicFont = Myriad Pro Semibold Italic,
     %BoldSlantedFont = Myriad Pro Semibold Italic,
     %SmallCapsFont = Myriad Pro,
         %]{Myriad Pro}
 %\setmonofont[%
     %Kerning=On,
     %Mapping=tex-text,
         %]{Consolas}
 %\usepackage{microtype}         % advanced kerning rules
                                 % Note: doesn't work fully with XeLaTeX
 
 %%------------------------------------------------------------------------------
 % Math
 %%------------------------------------------------------------------------------
 %\usepackage{amsmath}
 %\usepackage[math-style=ISO]{unicode-math}
 %\usepackage{mathtools}
 %\newtagform{brackets}{[}{]}
 %\usetagform{brackets}
 %% Math fonts
 %\setmathfont{XITS Math}
 %\setmathfont[range=\ell]{Latin Modern Math}
 %% custom math commands
 %\newcommand{\abs}[1]{\ensuremath{\left|#1\right|}}
 %\newcommand{\paren}[1]{\ensuremath{\left(#1\right)}}
 %\newcommand{\brac}[1]{\ensuremath{\left[#1\right]}}
 %\newcommand{\Brac}[1]{\ensuremath{\left\{#1\right\}}}
 
 %%------------------------------------------------------------------------------
 % Tables
 %%------------------------------------------------------------------------------
 %\usepackage{longtable}
 %\usepackage{booktabs}
 %\usepackage{multirow}
 %\usepackage{tabu}
 %\usepackage{colortbl}
 %\usepackage{siunitx}
 %\sisetup{table-align-text-post = false,table-format = +1.2}
 
 % threepartable allows to insert notes into a table.
 % threepartablex extends threeparttable to work with longtable.
 % They are not compatible with tabu!
 %\usepackage{threeparttable}
 %\usepackage[referable]{threeparttablex}
 
 % Patching the threeparttable package in order to work fine with tabu.
 % The patch must be applied before loading the caption package.
 % Look here : http://tex.stackexchange.com/questions/56504/threeparttablex-table-notes-for-tabu-tabulars-with-less-than-textwidth
 %\usepackage{xpatch}
 %\makeatletter
 %\chardef\TPT@@@asteriskcatcode=\catcode`*
 %\catcode`*=11
 %\xpatchcmd{\threeparttable}
 %  {\TPT@hookin{tabular}}
 %  {\TPT@hookin{tabular}\TPT@hookin{tabu}}
 %  {}{}
 %\catcode`*=\TPT@@@asteriskcatcode
 %\makeatother
 
 %% custom commands
 %\newcommand{\mc}[1]{\multicolumn{1}{c}{#1}}
 %\newcommand{\mr}[1]{\multirow{2}{*}{#1}}
 
 %%------------------------------------------------------------------------------
 % Lists
 %%------------------------------------------------------------------------------
 % Defines new compact version of enumerate, itemize and description environments.
 % They are called respectively compactenum, compactitem, compactdesc
 %\usepackage{paralist}                  % Adds flexibility to the spacing of the standard environments:
 %%------------------------------------------------------------------------------
 % You can finetune the spacing of the new environments by changing the following lengths
 %\setlength{\pltopsep}{0pt}      % Space between first item and preceding paragraph.
 %\setlength{\plpartopsep}{0pt}   % Extra space added to \topsep when environment starts a new paragraph (is called in vmode).
 %\setlength{\plitemsep}{0pt}     % Space between successive items.
 %\setlength{\plparsep}{0pt}      % Space between paragraphs within an item – the \parskip for this environment.
 
 %%------------------------------------------------------------------------------
 % Captions
 %%------------------------------------------------------------------------------
 %\usepackage[%
     %margin=10pt,
     %font={small},
     %labelfont=bf,
     %labelsep=endash]
     %{caption}
 %\usepackage{subcaption}
 
 %%------------------------------------------------------------------------------
 % Hyperlinks
 %%------------------------------------------------------------------------------
 %\usepackage[final]{hyperref}
 %\usepackage{url}
 %\hypersetup{
     %bookmarks=true,                               % show bookmarks bar?
     %unicode=true,                                 % non-Latin characters in Acrobat’s bookmarks
     %pdftoolbar=true,                              % show Acrobat’s toolbar?
     %pdfmenubar=true,                              % show Acrobat’s menu?
     %pdffitwindow=false,                           % window fit to page when opened
     %pdfstartview={FitH},                          % fits the width of the page to the window
     %pdftitle={title},                             % title
     %pdfauthor={FirstName SecondName},             % author
     %pdfsubject={Subject},                         % subject of the document
     %pdfcreator={FirstName SecondName},            % creator of the document
     %pdfproducer=FirstName SecondName},            % producer of the document
     %pdfkeywords={keyword1} {key2} {key3},         % list of keywords
     %pdfnewwindow=true,                            % links in new window
     %colorlinks=true,                              % false: boxed links; true: colored links
     %linkcolor=red,                                % color of internal links
     %anchorcolor=blue,                             % color of anchors
     %citecolor=green,                              % color of links to bibliography
     %filecolor=magenta,                            % color of file links
     %urlcolor=cyan,                                % color of external links
     %pdfpagelayout=SinglePage
 %}
 
 %%------------------------------------------------------------------------------
 % Headers - Footers
 %%------------------------------------------------------------------------------
 %\usepackage{fancyhdr}
 %\fancyhf{} % clear all header and footer fields
 
 %%------------------------------------------------------------------------------
 % Custom Commands
 %%------------------------------------------------------------------------------
 %\newrobustcmd*{\tsup}[1]{\textsuperscript{#1}}
 %\newrobustcmd*{\tsub}[1]{\textsubscript{#1}}
 
 \begin{document}
 
 \end{document}