送交者: qtl 于 2005-7-05, 21:21:58:
回答: ZT: US bubble set to burst 请用物理学分析研读此文 由 老中一号 于 2005-7-05, 20:15:09:
which are performed in many fields, e.g. in economic and finacial, physical, marketing, and demographic stuffs.
We are always trying to explain the world using some models, and improve them via comparing the observations from real world and the models.