Returns the logarithm of a number to the base you specify.
Syntax
LOG(number,base)
Number is the positive real number for which you want the logarithm.
Base is the base of the logarithm. If base is omitted, it is assumed to be 10.
Examples
LOG(10) equals 1
LOG(8, 2) equals 3
LOG(86, 2.7182818) equals 4.454347