2 Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.3.12 1321870072 2011/11/21 19:07:52 \sum_{i=1}^{n} k = \frac{n(n+1)}{2} 7 <IMG SRC="../cgi-cache/20111121_190449.gif"> ______ 正常に処理されました 20111121_190449 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Mon Nov 21 19:07:52 2011