1·The dilogarithm is an integral of the logarithm.
二重对数是对数的积分。
2·While this doesn't sound like a big deal, the difficulty of factoring and finding a discrete logarithm forms the basis of most if not all public-key cryptography systems.
虽然听起来这并不是什么了不起的事，但分解并找到一个离散对数的困难形成了大部分公用密钥密码学系统的基础，如果不是全部的话。
3·This led him to calculate that the information content of any event was proportional to the logarithm of its inverse probability of occurrence.
这使他提出了这样的推论：事件的信息容量与事件发生逆概率的对数成正比。
4·This plots the logarithm to base 10 of the values on the axis.
此命令在轴上绘制以10为底的值的对数。
5·A logarithm tells you what power a base number must be raised to in order to produce a given value.
对数说明一个底数的几次幂等于一个给定的值。