	Information about math method v 2.2b  11 Jan 99

	If tar file and all the tar files it contains (see below) have been
unpacked into /jgofs_root/src/whatever, math can be built into the
"standard" place (/jgofs_root/methods) using the standard build procedure
		cd /jgofs_root
		source build-env
		./build	
	The makefile adds the cc option -lm to the
CC string set up in build-env.  You may need/want to change this.
In some architectures, the extended line that begins with
	if ["($BUTTONIMAGESDIR)"] ...
is too long and will cause make to fail.  In this case, you can
remove the half of the line that does not apply in your case.
If (after executing the "source build-env" command, above) the command
	setenv | grep BUTTONIMAGESDIR
produces output, your installation uses the "if" part of the make line.
If there is no output, your installation uses the "else" part.  The
easiest edit is to leave in both the "if" and "else" sublines, but
delete what's between the "if" and the "else" or between the "else" and the 
"endif".

Files:
	Previous releases of math included sources for "outer_brev".
In this release, the sources are in a tar file within the math tar file.
The outer_switches.doc file describes this version of outer.
By default, the math build procedure looks for outer in the
same directory as the math distribution.  If the outer you wish to use
is elsewhere, please edit makefile.math appropriately.
        The new outer needs more files than the old.  Again, by default,
the math build looks for these files in the same directory as the math
distribution.  If they are not there, or not needed, please edit
makefile.math appropriately.
	The new outer needs the "path_info_routines" files.
These are in a tar file in the outer tar file.  If they are not unpacked
into the math distribution directory, please edit makefile.math.

Building a test version:
	You can build a version of math in the distribution directory after
appropriately editing the file make_testmath.csh.
		cd /jgofs_root/src/whatever
		source make_testmath.csh

=================

Changes from pre-2.0 versions of math

	1) Equations use := to separate the left and right sides.  This
allows the elimination of problems distinguishing equations from selections
	2) Variables beyond #128 in an object can be used in calculations
	3) Existing variables in an object may not appear on left side of
equation.
	4) Newly defined variables optionally accept an attribute list.
The list would appear between the variable name and the :=.  It is enclosed
in []s and attributes are separated by ;.
	5) The width attribute of newly defined variables will be at least 8.
