Lyapunov exponent
Noun
Meaning
Lyapunov exponent (plural Lyapunov exponents)
(mathematics) In a dynamical system, a quantity that characterizes the rate of separation of infinitesimally close trajectories.
Examples
For example, the maximal Lyapunov exponent (MLE) is most often used because it determines the overall predictability of the system.
In more mathematical terms, the Lyapunov exponent measures the sensitivity to initial conditions.