sCal-2-Read.txt
---------------
Well, if you've come through the normal route of downloading this from
the web,  and extracted the zip file to a place you can remember where
to find, and then read, this file;  the rest is pretty simple.   Files
contained in the zip distribution should be:

sCal-2-Read.txt		this file
sCal-05x.htm		(the x could vary with version) a HTML file
				with JavaScript code built-in
sCal2-06x.htm		(again, the x varies) a much bigger HTML file
GNU-GPL.txt		a copy of the GNU General Public License. Tho
				sCal is a Public Domain program, sCal2
				is copyrighted under this license.

The sCal programs should run immediately once double-clicked (or else-
wise called up by your system).   No installation is required for the
programs, the system registration should recognize the .htm extension,
and call upon your default web browser.   If that browser is a recent
version of Microsoft Internet Explorer, Netscape Navigator or Mozilla,
with a compatible version of JavaScript interpreter, everything should
run as programmed (which does not mean elegantly).   Both versions of
sCal have been tested in these environments.  Unfortunately, there are
differences in implementations. sCal works poorly (barely at all) with
Opera, and there will be more failures like it.  So if your system is 
mostly typical, you should have few problems.  If there has been a lot
of customization away from default browser settings,  I don't know---
maybe some CSS code in the code will set things right.

Since there are no additional files,  you can easily copy either file
and pass it on to anyone, with any modifications you might make.  You
should not do this as a commercial venture, though.  Read the license.
Just delete either program to remove it from your system.  There is
nothing to uninstall.

Some abbreviated operating notes are given in bottom cell(s) of each 
program.  If you read the comments in the source code, and experiment
(as suggested), you'll probably find some unexpected results.   For
example, selecting an operation from a drop-down menu doesn't invoke
it.  There are buttons to choose for how to invoke it: directly, as a
Script statement, or even as inverse.  The x-display will not auto-
matically clear when you want it to.  That's because sometimes you 
don't want it to (eg. appending some script to the end of a function).
'Clear' buttons are programmed to do that to the x-, m-, and n-cells.
Remember that some rather hefty books come with expensive programmable
scientific calculators.  Netscape, Microsoft, and plenty of books and
websites supply documentation on JavaScript.   Punching keys randomly
will not accomplish much.  But if you pay attention to what you're 
doing, and need to do some clever things, sCal can be a useful 
addition to a practioner's tools.

Wish you well,  r.m. Feb, 2003
