52 lines
1.5 KiB
Matlab
52 lines
1.5 KiB
Matlab
function [err, D] = sparse_hessian_times_B_kronecker_C(varargin)
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%function [err, D] = sparse_hessian_times_B_kronecker_C(A,B,C, fake)
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% Computes A * kron(B,C) where A is a sparse matrix.
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%
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% INPUTS
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% A [double] mA*nA matrix.
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% B [double] mB*nB matrix.
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% C [double] mC*nC matrix.
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%
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% OUTPUTS
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% err [double] scalar: 1 indicates failure, 0 indicates success
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% D [double] mA*(nC*nB) or mA*(nB*nB) matrix.
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%
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% ALGORITHM
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% none.
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%
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% SPECIAL REQUIREMENTS
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% none.
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% Copyright (C) 1996-2010 Dynare Team
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%
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% This file is part of Dynare.
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%
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% Dynare is free software: you can redistribute it and/or modify
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% it under the terms of the GNU General Public License as published by
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% the Free Software Foundation, either version 3 of the License, or
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% (at your option) any later version.
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%
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% Dynare is distributed in the hope that it will be useful,
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% but WITHOUT ANY WARRANTY; without even the implied warranty of
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% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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% GNU General Public License for more details.
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%
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% You should have received a copy of the GNU General Public License
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% along with Dynare. If not, see <http://www.gnu.org/licenses/>.
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A = varargin{1};
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B = varargin{2};
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C = varargin{3};
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fake = varargin{nargin};
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if nargout~=2
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error('sparse_hessian_times_B_kronecker_C provides exactly 2 output arguments.')
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end
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switch nargin
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case 4
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[fake,D] = A_times_B_kronecker_C(A,B,C,fake);
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case 3
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[fake,D] = A_times_B_kronecker_C(A,B,C);
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otherwise
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error('Two or Three input arguments required!')
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end
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err = 0; |