1 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:85.0) Gecko/20100101 Firefox/85.0 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.206.41 1614335701 2021/02/26 19:35: 1 y=f(x) 1 新規に受け付けます。 20210226_193501 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Fri Feb 26 19:35:01 2021