そのまま書く \begin{tikzpicture}[x=3cm,y=3cm] \draw (0,0)--(1,1); \node (end) at (1,1) [above] {a}; \end{tikzpicture} \begin{tikzpicture}[x=3cm,y=3cm] \draw (0,0)--(1,1); \node (end) at (1,1) [above] {a}; \end{tikzpicture} </script> なにも設定しな…