1 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1 Safari/605.1.15 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.206.41 1590987907 2020/06/01 14:05: 7 y=f(x) 1 新規に受け付けます。 20200601_140507 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Mon Jun 1 14:05:07 2020