SIMULATION

This paper is a state-of-the-art review of software for combined continuous/discrete systems simulation. The following 18 languages or packages are discussed:

The Interactive Simulation Language (ISL) is a power ful and easy-to-use software system for hybrid com puters using any of several different minicomputers. Its principal features are:

A model simulating the growth of clones of cells in two dimen sions is described. This model includes an algorithm that simulates the displacements which occur when interior cells divide in a cell mass; the model uses an algorithm which allows more realistic simulation than did previous models that did not possess this facil ity. Applications of the model are discussed, and details are given of the execution of the program on refresh display video, allow ing dynamic observation of the modelled cell division process.

This Newsletter was published independently from January 1971 through August 1976. Back issues are available from SITSOS, POB 994, La Jolla, CA 92038, for 75ç per copy.