普通の円 \begin{tikzpicture} \draw (0,0) circle (3); \end{tikzpicture} <script type="text/tikz"> \begin{tikzpicture} \draw (0,0) circle (3); \end{tikzpicture} </script> 点線の円 \begin{tikzpicture} \draw[dashed] (0,0) circle (3); \end{tikzpicture} <script type="text/tikz"> \begin{tikzpicture} \dra…