lementation error.  Narrow distributions (see following) may
produce wide facets.

<p>For example, if special processing for narrow distributions is
turned off ('<a href="qh-optq.htm#Q10">Q10</a>'), qhull may produce
a wide facet:</p>
<pre>
         rbox 1000 L100000 s G1e-16 t1002074964 | qhull Tv Q10
</pre>

<p>
<li><b>Narrow distribution</b> -- In 3-d, a narrow distribution may result in a poor
approximation. For example, if you do not use qdelaunay nor option
'<a href="qh-optq.htm#Qbb">Qbb</a>', the fur