rams, <a href=qdelaun.htm>qdelaunay</a>
and <a href=qvoronoi.htm>qvoronoi</a> always set
option '<a href="qh-optq.htm#Qbb">Qbb</a>'.  It scales the last
coordinate to [0,m] where <i>m</i> is the maximum width of the
other coordinates.  Option '<a href="qh-optq.htm#Qbb">Qbb</a>' is
needed for Delaunay triangulations of integer coordinates
and nearly cocircular points.

<p>For example, compare
<pre>
        rbox 1000 W0 t | qconvex Qb2:-1e-14B2:1e-14
</pre>
with
<pre>
        rbox 1000 W0 t | qconvex
</pre>
T