Dear chengyu yang: > I am sorry to ask, but advice from this forum is important to help.
Thanks for the appreciation, but remember that no forum is a real substitute for hard work ... Many of the questions that you (as well as many others) ask could be answered by yourself, just trying ... If you try and understand, then you wouldn't need to ask. If you do not understand, in spite of trying hard, then the answers to your legitimate (even more legitimate, after trying hard) questions would be much more instructive for you. Just a suggestion ... SB --- Stefano Baroni - SISSA & DEMOCRITOS National Simulation Center - Trieste http://stefano.baroni.me [+39] 040 3787 406 (tel) -528 (fax) / stefanobaroni (skype) La morale est une logique de l'action comme la logique est une morale de la pens?e - Jean Piaget -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20111024/0de252b3/attachment.htm
