1 ## Copyright (C) 2005 Michel D. Schmid <michaelschmid@users.sourceforge.net>
4 ## This program is free software; you can redistribute it and/or modify it
5 ## under the terms of the GNU General Public License as published by
6 ## the Free Software Foundation; either version 2, or (at your option)
9 ## This program is distributed in the hope that it will be useful, but
10 ## WITHOUT ANY WARRANTY; without even the implied warranty of
11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 ## General Public License for more details.
14 ## You should have received a copy of the GNU General Public License
15 ## along with this program; see the file COPYING. If not, see
16 ## <http://www.gnu.org/licenses/>.
19 ## @deftypefn {Function File} {}@var{a}= purelin (@var{n})
20 ## @code{purelin} is a linear transfer function used
24 ## Author: Michel D. Schmid
26 function a = purelin(n)
32 %!assert(purelin(2),2);
33 %!assert(purelin(-2),-2);
34 %!assert(purelin(0),0);
36 %!error # this test must throw an error!
37 %! assert(purelin(2),1);