ddmat

% -*- texinfo -*-
%@deftypefn {Function File} {@var{D} =} ddmat (@var{x}, @var{o})
% Compute divided differencing matrix of order @var{o}
%
% @itemize @w
% @item Input
%   @itemize @w
%   @item @var{x}:  vector of sampling positions
%   @item @var{o}:  order of diffferences
%   @end itemize
% @item Output
%   @itemize @w
%   @item @var{D}:  the matrix; @var{D} * Y gives divided differences of order @var{o}
%   @end itemize
% @end itemize
%
%References:  Anal. Chem. (2003) 75, 3631.
%
% @end deftypefn