Das Minimalbeispiel:
\documentclass[a4paper,11pt]{article} \usepackage{geometry} \geometry{a4paper,left=20mm,right=20mm, top=2cm, bottom=2.1cm} \usepackage{graphicx} \usepackage{tikz} \usetikzlibrary{graphs} \begin{document} \newpage \section{Anhang} \subsection{Graphiken} \label{Beispiele} \begin{figure}[h] \begin{tikzpicture} \coordinate[label=left:$A$] (A) at (1,2); \coordinate[label=right:$B$] (B) at (3,2); \coordinate[label=left:$C$] (C) at (-2,1); %\coordinate[label=right:$D$] (D) at (0,0); \draw (A) -- (B); \draw (A) -- (C); %\draw (A) -- (D); \draw (B) -- (C); %\draw (B) -- (D); %\draw (C) -- (D); \fill (A) circle (2pt); \fill (B) circle (2pt); \fill (C) circle (2pt); %\fill[red] (D) circle (2pt); \end{tikzpicture} \caption{Beispiel für eine n-Clique ohne D} \end{figure} \begin{figure}[h] \begin{tikzpicture} \coordinate[label=left:$A$] (A) at (1,2); \coordinate[label=right:$B$] (B) at (3,2); \coordinate[label=left:$C$] (C) at (-2,1); \coordinate[label=right:$D$] (D) at (0,0); \draw (A) -- (B); \draw (A) -- (C); \draw (A) -- (D); \draw (B) -- (C); \draw (B) -- (D); \draw (C) -- (D); \fill (A) circle (2pt); \fill (B) circle (2pt); \fill (C) circle (2pt); \fill[red] (D) circle (2pt); \end{tikzpicture} \caption{Beispiel für eine n-Clique mit D} \end{figure} \begin{figure}[h] \begin{tikzpicture} \coordinate[label=left:$A$] (A) at (1,2); \coordinate[label=right:$B$] (B) at (3,2); \coordinate[label=left:$C$] (C) at (-2,1); %\coordinate[label=right:$D$] (D) at (0,0); \draw (A) -- (B); \draw (B) -- (C); %\draw (C) -- (D); \fill (A) circle (2pt); \fill (B) circle (2pt); \fill (C) circle (2pt); %\fill[red] (D) circle (2pt); \end{tikzpicture} \caption{Beispiel für eine k-Plex ohne D} \end{figure} \begin{figure}[h] \begin{tikzpicture} \coordinate[label=left:$A$] (A) at (1,2); \coordinate[label=right:$B$] (B) at (3,2); \coordinate[label=left:$C$] (C) at (-2,1); \coordinate[label=right:$D$] (D) at (0,0); \draw (A) -- (B); \draw (A) -- (D); \draw (B) -- (C); \draw (C) -- (D); \fill (A) circle (2pt); \fill (B) circle (2pt); \fill (C) circle (2pt); \fill[red] (D) circle (2pt); \end{tikzpicture} \caption{Beispiel für eine k-Plex mit D} \end{figure} \end{document}