1 function C = Ucompconst (imesh,coeffn,coeffe)
3 %% C = Ucompconst (imesh,coeffn,coeffe)
9 % SECS2D - A 2-D Drift--Diffusion Semiconductor Device Simulator
10 % -------------------------------------------------------------------
11 % Copyright (C) 2004-2006 Carlo de Falco
15 % SECS2D is free software; you can redistribute it and/or modify
16 % it under the terms of the GNU General Public License as published by
17 % the Free Software Foundation; either version 2 of the License, or
18 % (at your option) any later version.
20 % SECS2D is distributed in the hope that it will be useful,
21 % but WITHOUT ANY WARRANTY; without even the implied warranty of
22 % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 % GNU General Public License for more details.
25 % You should have received a copy of the GNU General Public License
26 % along with SECS2D; If not, see <http://www.gnu.org/licenses/>.
30 Nnodes =size(imesh.p,2);
31 Nelements =size(imesh.t,2);
33 %%fprintf(1,'*--------------------*\n');
34 %%fprintf(1,'building RHS\n*');
36 coeff = coeffn(imesh.t(1:3,:));
37 wjacdet = imesh.wjacdet;
39 Blocmat=zeros(3,Nelements);
41 Blocmat(inode,:) = coeffe'.*coeff(inode,:).*wjacdet(inode,:);
45 gnode=(imesh.t(1:3,:));
47 % assemble global matrix
49 C = sparse(gnode(:),1,Blocmat(:));
51 %%fprintf(1,'----*\nDONE!\n\n\n');