Strange attractors are defined by insolvable differential equations. To obtain their representation, you have to use approximation methods but you can never have their exact solution because you would need infinite precision. This imply that approximation will have a cyclic trajectory because of the finite precision we can use but the real strange
attractor is effectively a fractal.
Also, try my new Strange Attractor 3D Viewer:
v1.1 (Win32 Executable)
This program is using Crystal Space
If you are getting intrigued about strange attractors and you would like to know
more about the strange attractors theory, I encourage you to consult the book
'Chaos: Making a
from James Gleick.