The LOG function returns the logarithm of a number to the base that you specify.
Syntax
LOG(
number
[,base]
)
Parameters
- number: Number whose logarithm you want to calculate.
- base: Optional argument. Base of the logarithm.
Returned value
The LOG function returns a real number.
Additional Information
number must be a number greater than zero. In any other case the LOG function will return an error. If the base argument is omitted, the logarithm to base 10 will be calculated.
The graph of the logarithm function in base 2 is shown below:
Examples
The logarithm in base 2 of the number 8 is calculated, resulting in the number 3:
In this example, the logarithm of 100 is calculated without specifying the base, so base 10 is considered by default, returning the number 2:
Category
Mathematical and trigonometric
