1 Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; GPTBot/1.3; +https://openai.com/gptbot) /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 192.168.3.33 1776274832 2026/04/16 02:40:32 y=f(x) 1 新規に受け付けます。 20260416_024032 https://rde.fwex.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Thu Apr 16 02:40:32 2026