说明：  Lyapunov exponent calcullation for ODE-system. The alogrithm employed in this m-file for determining Lyapunov exponents was proposed in A. Wolf, J. B. Swift, H. L. Swinney, and J. A. Vastano, "Determining Lyapunov Exponents from a Time Series," Physica D, Vol. 16, pp. 285-317, 1985. For integrating ODE system can be used any MATLAB ODE-suite methods. This function is a part of MATDS program - toolbox for dynamical system investigation See: http://www.math.rsu.ru/mexmat/kvm/matds/