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(2,1) automata

One dimensional binary automata are given rather cursory treatment in CAMEX , in contrast to the fairly elaborate analyses which LCAU 21 can preform. They are included, like many others, in the list which can be viewed by using the option f1 in the man menu; the subsequent use of INSERT initiates the ritual of loading CAM 's lookup table and creating a suitable image on the screen, to simulate a space-time evolution diagram.

Once the initialization step has been performed, using the subroutine inod, it can be repeated to generate another random configuration following the space-time format. However, any of the many other screen-filling options can be used to create configurations for which each line will evolve according to its own destiny. Placing a checkerboard in plane 0 (using h1 or H1) can often be instructive.

For the moment, neither of the options r or l responds while the binary automaton has been selected; the only variation possible is to change the rule number, which is a parameter that has to be adjusted from the main menu. Its value can be checked by using option f7, or changing parameters via the cursor arrows.

The vertical arrows increment or decrement the rule number; to get a different value quickly, say 150, type =150. Rule 22, whose behavior is as diverse as any, is the default value. Other interesting rules are 18, 30, 90, but there are many more.



Harold V. McIntosh
E-mail:mcintosh@servidor.unam.mx