In this case you could translate it as ratio or proportion. Just like we saw in the lesson about exponential function b is not equal to 1 and b is bigger than zero. On a calculator it is the log button.
Common logarithm - a logarithm to the base 10.
You should read them from the bottom to the top. Generalizing the examples above leads us to the formal definition of a logarithm. It is how many times we need to use 10 in a multiplication to get our desired number. This exact thing can be said using logarithms as shown below.