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annotate +blockmatrix/multiply.m @ 1037:2d7ba44340d0 feature/burgers1d

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Pass scheme specific parameters as cell array. This will enabale constructDiffOps to be more general. In addition, allow for schemes returning function handles as diffOps, which is currently how non-linear schemes such as Burgers1d are implemented.
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 18 Jan 2019 09:02:02 +0100
parents 288138d9586d
children
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288138d9586d Add function to multiply blockmatrices.
Jonatan Werpers <jonatan@werpers.com>
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1 function C = multiply(A, B)
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2 [n_a, m_a] = size(A);
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3 [n_b, m_b] = size(B);
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5 assert(m_a == n_b, 'Dimensions do not agree.')
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7 C = cell(n_a, m_b);
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9 for i = 1:n_a
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10 for j = 1:m_b
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11 C{i,j} = sparse(size(A{i,1},1), size(B{1,j},2));
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12 for k = 1:n_b
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13 C{i,j} = C{i,j} + A{i,k}*B{k,j};
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