Consider a set of points on an Attractor, then the correlation integral is

where is the number of pairs whose distance . For small ,

where is the Correlation Exponent.

**References**

Grassberger, P. and Procaccia, I. ``Measuring the Strangeness of Strange Attractors.''
*Physica D* **9**, 189-208, 1983.

© 1996-9

1999-05-25