1 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:53.0) Gecko/20100101 Firefox/53.0 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.205.34 1498112581 2017/06/22 15:23: 1 y=f(x) 1 新規に受け付けます。 20170622_152301 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Thu Jun 22 15:23:01 2017