1) Start TeXnicCenter:
2) Create a new document and paste the following code:
\documentclass[a4paper,12pt]{article}
\usepackage{ngerman}
\usepackage[latin1]{inputenc}
\usepackage{color}
\definecolor{magenta}{rgb}{1, 0, 1}
\begin{document}
\input{Deckblatt}
\input{Inhalt}
\section{\Large Grundlagen}
\input{Punkte}
\input{Extrema}
\section{\Large Beispiele mit $n=2$}
\input{N2Beispiel1}
%\input{N2Beispiel2}
\input{N2Beispiel3}
\input{N2Beispiel4}
\section{\Large Beispiele mit $n=3$}
\input{N3Beispiel1}
%\input{N3Beispiel2}
\section{\Large Beispiele mit $n>3$}
\input{N4Beispiel}
\end{document}
3) Mark lines 7-21and push the del button.
4) Now you have the following code:
\documentclass[a4paper,12pt]{article}
\usepackage{ngerman}
\usepackage[latin1]{inputenc}
\usepackage{color}
\definecolor{magenta}{rgb}{1, 0, 1}
\begin{document}
\end{document}
5) Mark the lines 5-6 and push the del button
6) Now you have the following code:
\documentclass[a4paper,12pt]{article}
\usepackage{ngerman}
\usepackage[latin1]{inputenc}
\begin{document}
\end{document}
7) Go two steps back with ctrl-z or the back button
Anonymous
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user_id=439379
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Works for me.