method
log
v2_6_3 -
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- Class:
Math
log(*args)public
No documentation available.
static VALUE math_log(int, const VALUE *, VALUE))1Note
Any base logarithm
Using basic arithmetic you can get logarithm with any base:
def log_with_base base, num
Math.log(num) / Math.log(base)
end
Examples:
>> log_with_base 2, 10
=> 3.32192809488736
>> log_with_base 2, 2
=> 1.0
>> log_with_base 2, 4
=> 2.0
>> log_with_base 2, 16
=> 4.0
>> log_with_base 4, 16
=> 2.0