Exponents and Logarithms

What are some examples of logarithm use?

Logarithms are used in many areas of science and engineering, especially in those areas in which quantities vary over a large range. For example, the decibel scale for the loudness of sound and the astronomical scale of stellar brightness are both logarithmic scales.


In this example of an exponential function, when 2 is raised to the power of x, the line representing the function always lies above the x axis.


This is a web preview of the "The Handy Math Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App