Wikipedia Definition of Power Law
In statistics, a power law is a functional relationship between two quantities, where a relative change in one quantity results in a proportional relative change in the other quantity, independent of the initial size of those quantities: one quantity varies as a power of another. For instance, considering the area of a square in terms of the length of its side, if the length is doubled, the area is multiplied by a factor of four - wikipedia 
# See also * Empirical examples * Properties * Power-law functions * Power-law probability distributions * Validating power laws * See also * References * External links
Research
See Widom scaling
See Scale (music)