At the international conference on chaos held by the Royal Society in London in 1986,
chaos was defined as apparently stochastic behavior occurring in a deterministic system (Stewart
(1997), p. 12). Chaotic complex dynamics are generated by nonlinearities that are present in
models or in actual data. Here complexity means that observation of a given dynamic behavior
does not help one to learn more about its underlying structure. Systems that exhibit complex
behavior which can be described by simple, nonlinear equations are thus said to be chaotic. (...)
