An exponential growth law of the form

characterizing a quantity which increases at a fixed rate proportionally to itself.

Kenney, J. F. and Keeping, E. S. "The Law of Growth." §4.12 in Mathematics of Statistics, Pt. 1, 3rd ed. Princeton, NJ: Van Nostrand, pp. 56-57, 1962.

CITE THIS AS:

Weisstein, Eric W. "Law of Growth." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/LawofGrowth.html