Diffusion-Limited Aggregation, or DLA,
is an extraordinarily simple computer simulation of the formation of clusters by particles
diffusing through a medium that jostles the particles as they move.
We begin with simple DLA, where the particles are
confined to a grid.
Here are some examples of better DLA, larger clusters, the
particles are not confined to a grid, and the particles move according to Brownian motion.
Much of the basic structure of DLA clusters is easy to understand.
DLA was proposed to model certain tyes of aggregation.