l input sites.
If you want a simplicial triangulation
use triangulated output ('<a href="qh-optq.htm#Qt">Qt</a>') or joggled
input ('<a href="qh-optq.htm#QJn">QJ</a>').

<p>For Delaunay triangulations, triangulated
output should produce good results.  All points are within roundoff error of
a paraboloid.  If two points are nearly incident, one will be a
coplanar point.  So all points are clearly separated and convex.
If qhull reports deleted vertices, the triangulation
may contain serious precision faults. 