# logarithmic decay

Arguably, the exponential function crops up more than any other when using mathematics to describe the physical world. In the second of two articles on physical phenomena which obey exponential laws,
Ian Garbett discusses radioactive decay. |
Arguably, the exponential function crops up more than any other when using mathematics to describe the physical world. In the first of two articles on physical phenomena which obey exponential laws,
Ian Garbett discusses light attenuation - the way in which light decreases in intensity as it passes through a medium. |