notes.husk.org/likes images.

Source: PDJ by Holger Lippmann on Behance.net

Image based on the simple Peter De Jong map equations:

x' = sin(a * y) - cos(b * x)
y' = sin(c * x) - cos(d * y)
For most values of a,b,c and d the point (x,y) moves chaotically. 
The resulting image is a map of the probability that the point lies within the area represented by each pixel.

[http://en.wikipedia.org/wiki/Fyre]

x__(n+1) = sin(a.y__n) - cos(b.x__n)
y__(n+1) = sin(c.x__n) - cos(d.y__n)