Power law

In physics, a power law relationship between two scalar quantities x and y is any such that the relationship can be written as

y = ax^k

where a (the constant of proportionality) and k (the exponent of the power law) are constants.

Examples of power law relationships:

• Stefan-Boltzmann law
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Examples of power law probability distributions:

• Pareto distribution
• Zipf's law
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Power laws are among the most frequent scaling laws that describe the scaling invariance found in many natural phenomena.

External links

• A claim that the blogosphere obeys a powerlaw distribution