1 ## Copyright (C) 1994, 1996, 2000, 2004, 2005, 2006, 2007 Auburn University
2 ## Copyright (C) 2012 Lukas F. Reichlin <lukas.reichlin@gmail.com>
4 ## This program is free software; you can redistribute it and/or modify it under
5 ## the terms of the GNU General Public License as published by the Free Software
6 ## Foundation; either version 3 of the License, or (at your option) any later
9 ## This program is distributed in the hope that it will be useful, but WITHOUT
10 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
14 ## You should have received a copy of the GNU General Public License along with
15 ## this program; if not, see <http://www.gnu.org/licenses/>.
18 ## @deftypefn {Function File} {[@var{pol}, @var{zer}, @var{k}] =} ss2zp (@var{a}, @var{b}, @var{c}, @var{d})
19 ## Converts a state space representation to a set of poles and zeros;
20 ## @var{k} is a gain associated with the zeros.
26 function [z, p, k] = ss2zp (varargin)
32 [z, p, k] = zpkdata (ss (varargin{:}), "vector");