Explanation of the Image...

This image created with the spectrum intercept algorithm is based on the dynamical system characterized by a pair of coupled equations,
where x' and y' are the first derivative of x and y with respect to time, t.

The state variables here are x and y. The domain of this image in the map of possible states for this system is,
(-0.2405, 3.8707)/(0.8424, 3.0465)

The parameter values are,
a=10, b=0.7, c=-1, d=0.25, ω=3.14, and φ=0.

This image differs from the Stretched image by ω=3.14 rather than 2 and the domain being different.