% -*- texinfo -*-
% @deftypefn {Function File} {@var{idx} =} dsearchn (@var{x}, @var{tri}, @var{xi})
% @deftypefnx {Function File} {@var{idx} =} dsearchn (@var{x}, @var{tri}, @var{xi}, @var{outval})
% @deftypefnx {Function File} {@var{idx} =} dsearchn (@var{x}, @var{xi})
% @deftypefnx {Function File} {[@var{idx}, @var{d}] =} dsearchn (@dots{})
% Returns the index @var{idx} or the closest point in @var{x} to the elements
% @var{xi}. If @var{outval} is supplied, then the values of @var{xi} that are
% not contained within one of the simplicies @var{tri} are set to
% @var{outval}. Generally, @var{tri} is returned from @code{delaunayn
% (@var{x})}.
% @seealso{dsearch, tsearch}
% @end deftypefn