annotate util/SL_A.m @ 244:5c8bcdadb380
unlocbox
added UNLocBox interface, example and a 128x128 Lena
author |
bmailhe |
date |
Tue, 04 Sep 2012 11:00:36 +0100 |
parents |
8e660fd14774 |
children |
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rev |
line source |
idamnjanovic@24
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1 function y = SL_A(A, mode, m, n, x, I, dim)
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ivan@128
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2 %% Sparco to SparseLab implicit matix conversion
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ivan@128
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3 % This is auxilary function to allow implicit matrices from SPARCO
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ivan@128
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4 % to be used with SparsLab solvers
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5
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idamnjanovic@24
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6 % Centre for Digital Music, Queen Mary, University of London.
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idamnjanovic@24
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7 % This file copyright 2009 Ivan Damnjanovic.
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idamnjanovic@24
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8 %
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idamnjanovic@24
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9 % This program is free software; you can redistribute it and/or
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idamnjanovic@24
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10 % modify it under the terms of the GNU General Public License as
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idamnjanovic@24
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11 % published by the Free Software Foundation; either version 2 of the
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idamnjanovic@24
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12 % License, or (at your option) any later version. See the file
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idamnjanovic@24
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13 % COPYING included with this distribution for more information.
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ivan@128
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14 %%
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idamnjanovic@24
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15
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idamnjanovic@24
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16 if (mode == 1)
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idamnjanovic@1
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17
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idamnjanovic@24
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18 u = zeros(dim, 1);
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idamnjanovic@24
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19 u(I) = x;
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idamnjanovic@24
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20 y = A(u,1);
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idamnjanovic@1
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21
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idamnjanovic@24
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22 elseif (mode == 2)
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23
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idamnjanovic@24
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24 x2 = A(x,2);
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idamnjanovic@24
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25 y = x2(I);
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idamnjanovic@24
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26
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idamnjanovic@24
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27 end
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28
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idamnjanovic@24
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29 end |