答案1
你可以从
\documentclass[tikz,border=2mm]{standalone}
\usetikzlibrary{shapes.symbols, fit, shapes.geometric}
\begin{document}
\begin{tikzpicture}
\node[signal,fill=gray!30, signal to=east, label=left:lente, label=right:rapide] (A) {$(\ln n)^\gamma\quad n^\alpha\quad n^\beta\quad a^n\quad b^n\quad n!$};
\node[fit=(A), ellipse, draw, thick, yellow!80!gray] (F) {};
\end{tikzpicture}
\end{document}