Returns the logarithm of the number using the specified base, which is the power that base must be raised to, to equal the number.
log( number, base )
number: (Decimal) A number, the logarithm of which will be returned.
base: (Decimal) The base to use in the logarithm calculation. 10 and e are common values for the base.
You can experiment with this function in the test box below.