Common Chaotic Systems

J. C. Sprott

Department of Physics, University of Wisconsin, Madison, WI 53706, USA
April 18, 1998
(Revised November 2, 2004)

Below are a number of common chaotic systems and their parameters (some representing new previously unpublished calculations), collected here for convenience.  The least significant digit is only a best estimate.  A good project would be to improve the precision of the values and to add other cases.

Logistic map

Hénon map

Chirikov (standard) map

Lorenz attractor

Rössler attractor

Ueda attractor

  • dx/dt = y
  • dy/dt = -x3 - ky + B sin z
  • dz/dt = 1
  • Usual parameters: B = 7.5, k = 0.05
  • Lyapunov exponents (base-e): l = 0.1034, 0, -0.1534
  • Kaplan-Yorke dimension: DKY = 2.6741
  • Correlation dimension: D2 = 2.675 + 0.132
  • Ref: Y. Ueda, J. Stat. Phys. 20, 181-196 (1979)
  • Simplest quadratic dissipative chaotic flow

  • dx/dt = y
  • dy/dt = z
  • dz/dt = -Az + y2 - x
  • Usual parameter: A = 2.017
  • Lyapunov exponents (base-e): l = 0.0551, 0, -2.0721
  • Kaplan-Yorke dimension: DKY = 2.0266
  • Correlation dimension: D2 = 2.187 + 0.075 (converges slowly)
  • Ref: J. C. Sprott, Phys. Lett. A 228, 271-274 (1977)
  • Simplest piecewise linear dissipative chaotic flow

  • dx/dt = y
  • dy/dt = z
  • dz/dt = -Az - y - |x| + 1
  • Usual parameter: A = 0.6
  • Lyapunov exponents (base-e): l = 0.0362, 0, -0.6362
  • Kaplan-Yorke dimension: DKY = 2.0569
  • Correlation dimension: D2 = 2.131 + 0.072 (converges slowly)
  • Ref: S. J. Linz and J. C. Sprott, Phys. Lett. A 259, 240-245 (1999)

  • A more extensive list of such systems is included in the paper Improved Correlation Dimension Calculation, and an even more extensive list (62 cases) is in Appendix A of the book Chaos and Time-Series Analysis by J. C. Sprott (Oxford University Press, 2003).

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