 lines start with
        the number of coincident sites and deleted vertices.  Deleted vertices
        indicate highly degenerate input (see'<a href="qh-optf.html#Fs">Fs</a>').
        A coincident site is assigned to one Delaunay
        region.  Do not use '<a href="qh-optq.html#QJn">QJ</a>' with 'Fc'; the joggle will separate
        coincident sites.</dd>
    <dt><a href="qh-optf.html#FP">FP</a></dt>
    <dd>print coincident input sites with distance to
        nearest site (i.e., vertex). The first l