There are patterns in logarithms that are fairly easy to understand. For example, the logarithm of 100 to base 10 is 2. The logarithm of 1000 to base 10 is 3.

[Ihsan Kehribar] points out a clever trick you can use to quickly and efficiently compute the logarithm of a 32-bit ... both the C-language algorithm and Python tools to generate the lookup ...