--- /dev/null
+
+function b=Ubernoulli(x,sg)
+
+%
+% b=Ubernoulli(x,sg)
+%
+% Bernoulli function
+% b = B(x)=x/(exp(x)-1) if sg==1
+% b = B(-x)=x+B(x) if sg==0
+% also works if x is a vector
+
+ ## This file is part of
+ ##
+ ## SECS1D - A 1-D Drift--Diffusion Semiconductor Device Simulator
+ ## -------------------------------------------------------------------
+ ## Copyright (C) 2004-2007 Carlo de Falco
+ ##
+ ##
+ ##
+ ## SECS1D 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 of the License, or
+ ## (at your option) any later version.
+ ##
+ ## SECS1D 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 SECS1D; If not, see <http://www.gnu.org/licenses/>.
+
+ for count=1:length(x)
+ [bp,bn] = Ubern(x(count));
+ bernp(count,1)=bp;
+ bernn(count,1)=bn;
+ end
+
+ if (sg ==1)
+ b=bernp;
+ elseif (sg ==0)
+ b=bernn;
+ end
+
+
+ % Last Revision:
+ % $Author: adb014 $
+ % $Date: 2008-02-04 16:26:27 +0100 (man, 04 feb 2008) $
+