Description: P is the probability of reaction. It should be in the range from 0 to 1. P = 1 corresponds to diffusion limited aggregation, since all collisions lead to aggregation.
Instructions: To start calculations press start button. "in/out" means that particles appear inside (in) the drawing area or out of the drawing area and diffuse towards the centre. You can choose between three kinds of particles: spheres (points), needle-like, and cross-like particles. p+n means that there are two kinds of particles: points and needles, they build a fractal in such a way that point can stick only to a neelde and needle can stick only to a point. p+c, c+n and p+n+c mean that there are points and crosses, crosses and needles and points, crosses and needles respectively, in all cases a prticle can stick only to particle of different kind. You can use different random numbers generators (RNG). Generic is a JavaTM generic random numbers generator. Generator 1 is a linear generator. Normal is based on normal distribution (particles most likely will appear in the centre). BBS is Blum, Blum, Shub generator of square remainders. RSA is based on a power generator. To see a better fractal increase number of iterations.
Old applets:
Reaction Limited Aggregation (second version).Reaction Limited Aggregation with multiple seeds.
Reaction Limited Aggregation with multiple seeds (second version).
Reaction Limited Aggregation with multiple seeds of needle-like particles.
Reaction Limited Aggregation with multiple seeds of needle-like particles (second version).
Reaction Limited Aggregation of needle-like particles.
Reaction Limited Aggregation of needle-like particles (second version).