	AAAREADME.AAA

The files in this area are included to demonstrate how the "BASIC 
MINUS 2" system is used. They are only provided as an example of 
programming at this stage.  Phone me for further details.

The main utilities in the area are HDD (Hardy Cross Data Preparation 
Utility) which prepares data, and HDX (Hardy Cross Water Pipe Network
Analysis Program), which uses the HDD outfile as infile and produces 
a similar outfile which can be reprocessed until the necessary
degree of precision is obtained.

Note the use of B4S "include files" to give consistent common and map 
definitions across all modules (e.g. HDXDEFMAP.B4S). Comparison of a
.B4S source file with its coresponding .B2S file will quickly show 
what goes on.

			Richard Wittenoom, 09-3-222-777
