1 ## Copyright (C) 2009 Lukas F. Reichlin
3 ## This file is part of LTI Syncope.
5 ## LTI Syncope is free software: you can redistribute it and/or modify
6 ## it under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation, either version 3 of the License, or
8 ## (at your option) any later version.
10 ## LTI Syncope is distributed in the hope that it will be useful,
11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ## GNU General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with LTI Syncope. If not, see <http://www.gnu.org/licenses/>.
19 ## @deftypefn {Function File} {@var{bool} =} isdt (@var{sys})
20 ## Determine whether LTI model is a discrete-time system.
31 ## @var{sys} is a continuous-time system.
33 ## @var{sys} is a discrete-time system or a static gain.
37 ## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
38 ## Created: September 2009
41 function bool = isdt (ltisys)
47 bool = (ltisys.tsam != 0);