Circular Wave Propagation on a 2D CA

The initial pattern used above consists of a line of seven adjacent cells and demonstrates circular wave propagation on a two-dimensional cellular automaton. The rule used is B3/S01234, i.e. a new cell is born when exactly 3 of its neighbors are alive, and a cell survives for the next generation when it has 0, 1, 2, 3 or 4 neighbors alive. If you see just a heading, then your browser probably doesn't support Java.

Usage Notes

• Press the Start button to start the applet or the Step button for a step by step action.
• The above display is merely a window on a Life pattern that might be much larger. Scroll by clicking near the boundaries.
• The Recenter button translates the pattern so that at least one live cell is in the window. Use it to find patterns that have moved off-screen.
• The "<" and ">" buttons control the magnification.