LOG (Number, Base?) LOG (Number; Base?)
Number
Number Number
The input number.
Base
Number Number (optional)
The base of the logarithm. If omitted, it is assumed to be 10.
Returns
Number Number
The logarithm of a number.
Returns the logarithm of a number using a custom base. The logarithm of a number is the power that the base must be raised to in order to return the number. A number that is zero or negative results in an error.
Examples
LOG (100, 10)
LOG (100; 10)
Returns 2.
LOG (10000, 10)
LOG (10000; 10)
Returns 4.
LOG ({ 100, 10000 }, 10)
LOG ({ 100; 10000 }; 10)
Returns the array { 2, 4 }{ 2; 4 }.
{ LOG (100, 10), LOG (10000, 10) }
{ LOG (100; 10); LOG (10000; 10) }
Returns the array { 2, 4 }{ 2; 4 }.
LOG (8, 2)
LOG (8; 2)
Returns 3, as 2 raised to the power of 3 is 8.