Growth processes are the basis of ecological modelling. In 1961, the meteorologist E. L. Lorenz used greatly simplified weather 000-973 forecast equations to show that tiny errors in initial conditions could make forecasts outside of a certain time period impossible (deterministic chaos). This chaotic behaviour was 1z0-048 also found in models of basic growth processes. For example, the equation developed by Verhulst HH0-120 in 1845 (the discrete version of which is today known as logistic growth, or growth with limited food), also produces chaotic behaviour. An interesting offshoot from this discovery is the development 1z0-042 of wonderful two-dimensional computer art.