<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\RequirePackage{luatex85}
\documentclass{standalone}

\usepackage{fontspec}

\usepackage{tikz}
\usetikzlibrary{graphs}
\usetikzlibrary{nef}
\usetikzlibrary{quotes}

\begin{document}
\begin{tikzpicture}[nef]
    \graph {
        input [ext] -&gt; gate [ens] -&gt; integrator/$x$ [ens] -&gt; output [ext];
        integrator -&gt; [bend right, "$-1$"] gate;
        integrator -&gt; [recurrent] integrator;
        store -&gt; [inhibit] gate;
    };
\end{tikzpicture}
\end{document}
</pre></body></html>