1% Create diagonal sparse matrix. 2% 3% s = sparse_diag(d) 4% 5% Create diagonal sparse matrix s based on the diagonal elements d. The 6% parameter d is transformed into a vector. 7 8function s = sparse_diag(d) 9 10s = spdiags(d(:),0,numel(d),numel(d)); 11 12% Copyright (C) 2009 Alexander Barth <a.barth@ulg.ac.be> 13% 14% This program 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. 18% 19% This program 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. 23% 24% You should have received a copy of the GNU General Public License 25% along with this program; If not, see <http://www.gnu.org/licenses/>. 26 27