tm_log Function

tm_log returns the logarithm of a given number in a given base.

tm_log(number, base)

Examples

tm_log(50, 10)
1.6989700043360185
tm_log(16, 2)
4

log and ceil can be used together to find the minimum number of binary digits required to represent a given number of distinct values:

tm_ceil(log(15, 2))
4
tm_ceil(log(16, 2))
4
tm_ceil(log(17, 2))
5