1 function L = Ucomplap (mesh,coeff)
3 % L = Ufastcomplap (mesh,coeff)
8 % SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
9 % -------------------------------------------------------------------
10 % Copyright (C) 2004-2006 Carlo de Falco
14 % SECS2D is free software; you can redistribute it and/or modify
15 % it under the terms of the GNU General Public License as published by
16 % the Free Software Foundation; either version 2 of the License, or
17 % (at your option) any later version.
19 % SECS2D is distributed in the hope that it will be useful,
20 % but WITHOUT ANY WARRANTY; without even the implied warranty of
21 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 % GNU General Public License for more details.
24 % You should have received a copy of the GNU General Public License
25 % along with SECS2D; If not, see <http://www.gnu.org/licenses/>.
28 Nnodes = length(mesh.p);
29 Nelements = length(mesh.t);
31 %%fprintf(1,'*--------------------*\n');
32 %%fprintf(1,'building Stiffness Matrix\n*');
34 areak = reshape(sum( mesh.wjacdet,1),1,1,Nelements);
35 shg = mesh.shg(:,:,:);
36 M = reshape(coeff,1,1,Nelements);
39 Lloc=zeros(3,3,Nelements);
43 Lloc(inode,jnode,:) = M .* sum( shg(:,inode,:) .* shg(:,jnode,:),1) .* areak;
46 ginode(inode,jnode,:)=mesh.t(inode,:);
47 gjnode(inode,jnode,:)=mesh.t(jnode,:);
54 L = sparse(ginode(:),gjnode(:),Lloc(:));
55 %%fprintf(1,'--*\nDONE!\n\n\n');