Truchet is a program which draws a map of Truchet tiles on a Workbench
window.

To use Truchet, just type truchet from cli.  Enter a number between 1 and
1000.  The map will then generate.  Click on the close box to quit.

Truchet was inspired by the Computer Recreations column of the July, 1989
issue of Scientific American. 

There are two types of Truchet tiles.  One type has a quarter-circle in 
both the upper left and lower right corners of the tile, the other type has
them in the upper right and lower left corners. 

Truchet tiling could be used to determine the degree of randomness in a set
of data.  To test a set of data, tiles are laid down according to the 
binary representation of the numbers.  If the resulting map appears to have
no detectable patterns, the data is random.  If patterns appear, the data
is not random.  This idea is put forth by Clifford A. Pickover of IBM's
Thomas J. Watson Research Center.

Read the SA article for a better explanation of this and other curiosities.

Truchet was written using Lattice C 5.0 and compiles with the command:

	lc -Lm truchet.c

Happy Tiling!


Chris MacDonald
cmacdonald
6/21/89