The files in this directory are documented in

<A HREF="http://www.andrews.edu/~calkins/sigma/sigma6.htm">sigma6.htm</A>
<P>
and
<P>
<A HREF="http://www.andrews.edu/~calkins/sigma/sigma7.htm">sigma7.htm</A>
<P>

Another file of interest may be:
<A HREF="http://www.andrews.edu/~calkins/sigma/xsigmaug.htm">Minutes for
        the Second Users Group Meeting.</A>