1 Mozilla/5.0 (iPhone; CPU iPhone OS 14_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Mobile/15E148 Safari/604.1 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.206.41 1614840661 2021/03/04 15:51: 1 y=f(x) 1 新規に受け付けます。 20210304_155101 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Thu Mar 4 15:51:01 2021