> Here is basically the two lines by which all the artworks below were started from: x += y >> 4; y -= x >> 4; This is the discrete time version of a Harmonic

> Here is basically the two lines by which all the artworks below were started from: x += y >> 4; y -= x >> 4; This is the discrete time version of a Harmonic Oscillator, an energy conserving differential equation. The introduction of nonlinearity results in the complex behaviour.