This video is awesome and explains all you need to know about logarithms and why we might need to have a better scale to help us show large numbers. This video looks at how we can define logarithms. We look at the bases of logs. We look at how to convert to and from logs and, most excitingly, how to use the CAS to draw histograms which use log functions. This video is part of the Further Mathematics Units 3 and 4 course.