The notation is logbx or logbx where b is the base and x is the number for which the logarithm is to be found. You will now be able to type the base of the log you would like to calculate. Logarithms made it easy for people to carry out otherwise difficult operations eg.
Logarithm the exponent or power to which a base must be raised to yield a given number.
Calculate the logarithm of this approximated number Calculate the percentage error and multiply by and add or subtract as appropriate. This algebra 2 video tutorial provides a basic introduction of logarithms. For example using the Log function on the number 10 would reveal that you have to multiply your base number of 10 by itself one time to equal the number 10. Therefore 3 is the logarithm of 8 to base 2 or 3 log 2 8.