% -*- texinfo -*-
% @deftypefn {Function File} {@var{T} =} delaunay3 (@var{x}, @var{y}, @var{z})
% @deftypefnx {Function File} {@var{T} =} delaunay3 (@var{x}, @var{y}, @var{z}, @var{opt})
% A matrix of size [n, 4] is returned. Each row contains a
% set of tetrahedron which are
% described by the indices to the data point vectors (x,y,z).
%
% A fourth optional argument, which must be a string or cell array of strings,
% contains extra options passed to the underlying qhull command. See the
% documentation for the Qhull library for details.
% @seealso{delaunay,delaunayn}
% @end deftypefn