10 Mozilla/5.0 (Linux; Android 9; SO-05K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.92 Mobile Safari/537.36 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.206.41 1581705179 2020/02/15 03:32:59 \tan 3\theta =\frac{3\tan \theta - \tan ^3 \theta}{1-3\tan ^2 \theta} 2 <IMG SRC="../cgi-cache/20200215_033123.gif"> 変換 正常に処理されました 20200215_033123 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Sat Feb 15 03:32:59 2020