1 Mozilla/5.0 (Linux; Android 9; d-02K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.116 Safari/537.36 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.206.41 1578992080 2020/01/14 17:54:40 f(x)=x^3+(((a+b+c)^2-2(ab+bc+ca)/4S)x^2+(((ab+bc+ca)^2-2abc(a+b+c))/4S^2-(((a+b+c)^2-2(ab+bc+ca))/4S)^2)x 7 <IMG SRC="../cgi-cache/20200114_174530.gif"> 変換 正常に処理されました 20200114_174530 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Tue Jan 14 17:54:40 2020