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annotate +blockmatrix/zero.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 a5f1b0267dba
children
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d521e17f72b6 blockmatrix: Added function to create zero blockmatrices.
Jonatan Werpers <jonatan@werpers.com>
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1 % Creates a block matrix according to the division with zeros everywhere.
d521e17f72b6 blockmatrix: Added function to create zero blockmatrices.
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2 function bm = zero(div)
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a5f1b0267dba Be less strict about what is considered a block matrix
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3 if ~blockmatrix.isDivision(div)
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f0f4ca946068 blockmatrix: added a test to make sure a zero matrix is a blockmatrix. Also added input parameter checking to zero()
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4 error('div is not a valid division');
f0f4ca946068 blockmatrix: added a test to make sure a zero matrix is a blockmatrix. Also added input parameter checking to zero()
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5 end
f0f4ca946068 blockmatrix: added a test to make sure a zero matrix is a blockmatrix. Also added input parameter checking to zero()
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7 n = div{1};
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8 m = div{2};
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10 N = length(n);
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11 M = length(m);
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13 bm = cell(N,M);
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d521e17f72b6 blockmatrix: Added function to create zero blockmatrices.
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15 for i = 1:N
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16 for j = 1:M
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17 bm{i,j} = sparse(n(i),m(j));
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18 end
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20 end