1 Opera/9.80 (Windows NT 6.1; U; ja) Presto/2.8.131 Version/11.11 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.3.12 1306819784 2011/05/31 14:29:44 y=f(x) 1 新規に受け付けます。 20110531_142944 Tue May 31 14:29:44 2011