1 Opera/9.80 (Windows NT 6.1; U; ja) Presto/2.10.229 Version/11.61 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.3.12 1330570741 2012/03/01 11:59: 1 y=f(x) 1 新規に受け付けます。 20120301_115901 Thu Mar 1 11:59:01 2012