## Copyright (C) 2007 Michel D. Schmid <michaelschmid@users.sourceforge.net> ## ## ## This program is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 2, or (at your option) ## any later version. ## ## This program is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with this program; see the file COPYING. If not, write to the Free ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA ## 02110-1301, USA. ## -*- texinfo -*- ## @deftypefn {Function File} {}[@var{a} = dsatlin (@var{n}) ## ## @end deftypefn ## @seealso{dpurelin,dtansig,dlogsig} ## Author: Michel D. Schmid function a = dsatlin(n) # the derivative of satlin is easy: # where satlin is constant, the derivative is 0 # else, because without variable n, the derivative is 1 if (n>=0 && n<=1) a = 1; else a = 0; endif endfunction

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