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 ## Addition of two polynomials. For internal use only.
21 ## Author: Lukas Reichlin <lukas.reichlin@gmail.com>
22 ## Created: September 2009
25 function a = plus (a, b)
27 if (! isa (a, "tfpoly"))
31 if (! isa (b, "tfpoly"))
35 [a, b] = __make_equally_long__ (a, b);
37 a.poly = a.poly + b.poly;
39 a = __remove_leading_zeros__ (a);