This directory is a collector for several sets of programs / command files
developed by the staff of Computer Sciences Corporation at the Goddard
Space Flight Center in Greenbelt, Maryland.  The following subdirectories
are included:

	[.CALC]		Interactive calculator program with full FORTRAN
			expression syntax and support for most FORTRAN
			intrinsic functions (SIN, COS, SQRT, etc.).
			Supports 32 character variable names, is
			very forgiving of arithmetic and other errors,
			and has routines to load, dump, list, and
			edit the internal symbol table.  Supports
			hexadecimal and octal constants and output.


	[.COMPARE]	Program which compares the contents of two disks
			or directory trees and produces a report much 
			like DIFFERENCES/PARALLEL produces.  The
			comparison is based upon file name, version
			number, creation and modification date, and 
			file size.  Since actual file contents are 
			not checked, COMPARE runs quite fast.


	[.EXP]		Expression parser and interpreter packages with
			test driver program.  Supports essentially the
			same expression syntax as the CALC program, but
			optionally treats the "=" operator as an arithmetic 
			operator much the way the C language does.  The
			expression parser and interpreter are coupled 
			through a reverse polish notation "program"
			and a set of user-defined symbol table subroutines.
			(The test driver includes a set of symbol table
			subroutines based upon the DEC Run-time Library
			balanced binary tree facility.)


	[.STAT]		A simple statistics subroutine and program.
			Nothing fancy, but it might save someone a
			little time looking the formulas up and
			coding them, etc.  Performs mean, standard
			deviation, variance, least-squares fit, and
			correlation coeficient computations.


	[.UTILITY]	A mixed bag of utility programs and command files.
			Some of these are unique, some are variants on
			similar utilities from previous tapes, all have
			built in HELP invoked by a "?" as the first
			parameter.  See the AAAREADME.TXT file for
			details.


Please feel free to write or phone (though I am extremely difficult
to get hold of by phone) with any questions, comments, etc.
Point of contact for any questions or comments is:


		Dennis K. Fitzgerald
		Computer Sciences Corporation
		4600 Powder Mill Road
		Beltsville, MD.  20705

		(301) 937 0760 x4166