LaTeX-examples/tikz/topology-simplex-0/topology-simplex-0.tex

\documentclass[varwidth=true, border=2pt]{standalone}

\usepackage{tikz}
\usepackage{amsmath,amssymb}

\begin{document}
    \begin{tikzpicture}[thick]
        \draw[thick, fill=black, black] (0cm,0cm) circle(0.1cm);
        %\node[below] {$1$};
    \end{tikzpicture}
\end{document}