回复：It's still not very clear to me

来源: 于 2008-10-09 18:40:06 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Make the first step as small as you want. Say if your first step is 1, then by the reducing rate of 0.53, you advance to around 2.5 to the limit. repeat this....