Three Sisters
Explanation of the Image...

Three Sisters
This image created with the spectrum intercept algorithm is based on the dynamical system characterized by the expression,
where θ'' is the second derivative of θ with respect to time.

The domain of this image in the map of possible states for this system is,
(-9.43, 4.5)/(9.43, -4.5)

The parameter values are b=3.33, μ=0.0133.

This image is created from the angular velocity of a pendulum after a fixed integration time has expired.