There is no simple method to calculate logarithms. The traditional way to find a log of a number was to look it up in a table. You then had to add for the power of ten in the top digit. For the...
You look the number up in a table.
Find the logarithm of 511 From a table I see that numbers are only listed from 1.00 to 9.99 I look up 5.11 and know that I have to multiply that by 100 or 102 to...
Use a scientific calculator. The actual calculation is rather involved; it is based on infinite sums (you add up several terms, until you get the desired accuracy). If you every study calculus, you...