Lorenz Attractor

The butterfly of chaos: one trajectory turns between two lobes without repeating. A selected stretch of its path and a little depth fading reveal an airy, folded structure.

Lorenz Attractor: The butterfly of chaos: one trajectory turns between two lobes without repeating. A selected stretch of its path and a little depth fading reveal an airy, folded structure.Lorenz Attractor: The butterfly of chaos: one trajectory turns between two lobes without repeating. A selected stretch of its path and a little depth fading reveal an airy, folded structure.

About this pattern

Edward Lorenz, 1963

Lorenz Attractor, chaos theory, drawn by GART: The butterfly of chaos: one trajectory turns between two lobes without repeating. A selected stretch of its path and a little depth fading reveal an airy, folded structure.
Lorenz Attractor · CC BY 4.0

The classic Lorenz equations are integrated with fourth-order Runge–Kutta, starting from a fixed point and discarding an initial transient. Start selects a later stretch of that same trajectory. Rotation changes the projection; it does not change the dynamical system. The default uses σ = 10, ρ = 28, β = 8/3.

Behind the mathematics

Edward Lorenz1917–2008

Lorenz system

American mathematician and meteorologist whose simplified atmospheric equations revealed deterministic chaos and the butterfly-shaped Lorenz attractor.