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 ## Matrix left division of LTI objects. If necessary, object conversion
20 ## is done by sys_group in mtimes. Used by Octave for "sys1 \\ sys2".
22 ## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
23 ## Created: October 2009
26 function sys = mldivide (sys1, sys2)
28 if (nargin != 2) # prevent sys = mldivide (sys1, sys2, sys3, ...)
29 error ("lti: mldivide: this is a binary operator");
32 sys1 = inv (sys1); # let octave decide which inv() it uses
34 [p1, m1] = size (sys1);
35 [p2, m2] = size (sys2);
38 error ("lti: mldivide: system dimensions incompatible: (%dx%d) \ (%dx%d)",