Quod Erat Demonstrandum

Hi there! I am hoping for using LaTeX in Blog, here is a good choice.Try a little bit. is the 祖率. It is sad to know that I can’t use applet here. But at least, I can practise using LaTeX.OK. Here’s a message from my deleted Blog:  相信 80 年代的香港初中生對『Q.E.D.』這個簡稱不會陌生，我們的數學老師會說：『Quite Easy Done』，但 Quod Erat Demonstrandum 這個拉丁文的原意，相信很多人會遺忘。參考以下連結吧http://en.wikipedia.org/wiki/Q.E.D.數學重視證明，『這被證明了』是一個又一個的目標，希望這個 Blog 的意義和功能最終都『被證明』是正面的。My old Forum 濟濟一堂學術討論區 is functioning good because it allows “applet” and more “html” except the LaTeX, a very powerful tool in this Blog. Getting full use of both Forum and Blog may be beneficial to me and students.