对,但本质是e^x=sigma(x^n/n!) n from 0 to infinite.

来源: jinjing 于 2011-02-26 17:32:10 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.