xponents are
        then defined as logarithmic growth rates of the perturbations. If one Lyapunov
        exponent is larger then zero the nearby trajectories diverge exponentially
        hence they are chaotic. If the largest Lyapunov exponent is zero one is usually
        faced with periodic motion. In the case of a largest Lyapunov exponent smaller
        then zero convergence to a fixed point is expected. More information's about
        Lyapunov exponents and nonlinear dynamical systems can be fou