回复：还有更好的办法。用LOG2相当于又用了一个10

来源: 于 2010-01-07 07:49:01 [旧帖] [给我悄悄话] 本文已被阅读：次

更好的办法:put 2 2s together, let people only can see it like from the other side it is 5.(ha)
I know 5=exp(log2)/2.Thank you.