LaTeX Forum

\documentclass[margin=5mm]{standalone}
\usepackage{tikz}
\usetikzlibrary{matrix,positioning}
\begin{document}
\begin{tikzpicture}
  \matrix(M)[
    matrix of nodes,
    row sep=-\pgflinewidth,column sep=-\pgflinewidth,
    nodes={draw,text width=1cm,minimum height=2em}
  ]
  {
    {}\\
    {}&{}\\
    {}&{}&{}\\
    {}&{}&{}&{}\\
  };
  \foreach[count=\j] \i in {2,...,5}\node[left=0pt of M-\j-1,font=\tiny]{\i};
  \foreach[count=\j] \i in {1,...,4}\node[below=0pt of M-4-\j,font=\tiny]{\i};
\end{tikzpicture}
\end{document}

\begin{figure}[H]
\centering
\begin{tikzpicture}
\matrix(M)[matrix of nodes,row sep=-\pgflinewidth,column sep=-\pgflinewidth,
nodes={draw,minimum width=4em,minimum height=4em}] 
{
	$ A,B $ & $ A,B $ & $ B $ & $ B $ & $ B $ \\
	$ A,S $ & $ S $ & - & - \\
	$ A,S,C $ & $ C $ & - \\
	$ S,C $ & - \\
	$ C $ \\
};
\foreach[count=\j] \i in {$ a $,$ a $,$ b $, $ b $, $ b $}\node[above=0pt of M-1-\j]{\i}; 
\end{tikzpicture}
\caption{CYK-Algorithmus}
\end{figure}

\documentclass{scrartcl}
\usepackage{tikz} 
\usetikzlibrary{matrix,positioning} 
\begin{document}
 
\begin{center}
  \begin{minipage}{\linewidth}
    \centering
    \begin{tikzpicture} 
      \matrix(M)[matrix of math nodes,row sep=-\pgflinewidth,column sep=-\pgflinewidth, 
       nodes={draw,minimum width=4em,minimum height=4em,font=\strut}] 
      { 
          A,B & A,B & B & B & B \\ 
          A,S & S & - & - \\ 
          A,S,C & C & - \\ 
          S,C & - \\ 
          C \\ 
      }; 
      \foreach[count=\j] \i in {a,a,b,b,b}\node[above=0pt of M-1-\j]{$\i$}; 
    \end{tikzpicture} 
    \captionof{figure}{CYK-Algorithmus} 
  \end{minipage}
\end{center}
\end{document}