In this cellular automaton, a living cell survives if it has 3, 4, 6, 7, or 8 neighbors and a dead cell becomes alive when it has 3, 6, 7, or 8 neighbors (otherwise, a cell remains in the same state). If there are less than two alive neighbors, then the cell dies. Each cell checks the state of itself and its eight surrounding neighbors and then sets itself to either alive or dead. The day and night rule set is as follows. Although the day and night rule set is classified as a chaotic cellular automaton, it behaves very differently from Conway's original rules because of its unique properties. The rule modeled here is given the name "Day & Night" because both its states states are symmetric meaning if all states are switched if on, turn off vise versa the automata will proceed in the same manner.Īs with Conway ’s Life the automaton model here displays Class IV Behavior. Cellular automata result complex dynamics from simple rules.
These are idealized models of complex systems as they consist of large network of simple components with limited communication among components and no central control. In other words, a cellular automaton can thought of as computational machine performing actions based on specified rules. This particular cellular automaton is called Day and Night.Ĭellular automata (CA) were invented in the 1940s by Stanislaw Ulam and John von Neumann to prove that self-reproduction is possible in machines and to further link biology and compuatation.Ī CA is a collection of cells arranged in a grid, such that each cell changes state as a function of time according to a defined set of rules that includes the states of neighboring cells. This program models a two-dimensional cellular automaton. If clicking does not initiate a download, try right clicking or control clicking and choosing "Save" or "Download".(The run link is disabled for this model because it was made in a version prior to NetLogo 6.0, which NetLogo Web requires.) (back to the NetLogo User Community Models) Beginners Interactive NetLogo Dictionary (BIND)
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