std-log2 | ![]() |
Returns the logarithm, base 2, of the number. The return value is either a integer or a real number.
(std-log2 n) is the complement to (lsh 1 n) or (std-expt 2 n)
(std-log2 1) => 0 (std-log2 2) => 1 (std-log2 4) => 2
num: Any number, if integer or real.
A integer or real number.
None.
(std-require 'STDMATH)
Defined in STDMATH