1 Mozilla/5.0 (Linux; Android 9; SO-01K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.89 Mobile Safari/537.36 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.206.41 1565532063 2019/08/11 23:01: 3 y=f(x) 1 新規に受け付けます。 20190811_230103 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Sun Aug 11 23:01:03 2019