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annotate +blockmatrix/toMatrix.m @ 1198:2924b3a9b921 feature/d2_compatible

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Add OpSet for fully compatible D2Variable, created from regular D2Variable by replacing d1 by first row of D1. Formal reduction by one order of accuracy at the boundary point.
author Martin Almquist <malmquist@stanford.edu>
date Fri, 16 Aug 2019 14:30:28 -0700
parents 2501067f2fc7
children
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50a323da7c7f blockmatrix: Added function to convert blockmatrix to a regular matrix.
Jonatan Werpers <jonatan@werpers.com>
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1 function A = toMatrix(bm)
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2 if ~blockmatrix.isBlockmatrix(bm)
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3 error('blockmatrix:toMatrix:NotABlockmatrix', 'Input is not a blockmatrix');
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4 end
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6 div = blockmatrix.getDivision(bm);
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7 n = div{1};
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8 m = div{2};
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10 N = sum(n);
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11 M = sum(m);
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13 A = sparse(N,M);
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15 for i = 1:size(bm,1)
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16 for j = 1:size(bm,2)
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b079c437174c Use matlab style if
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17 if isempty(bm{i,j})
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c14875cf7ae6 Make blockMatrix.toMatrix faster for large matrices.
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18 bm{i,j} = sparse(n(i),m(j));
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19 end
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22 A = cell2mat(bm);
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23 end