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view stripeMatrix.m @ 1171:393ed30866a1 feature/rv

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Actually return coarse grid operators from constructDiffOpsMultiGrid
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Fri, 28 Jun 2019 13:18:58 +0200
parents 5cb99f56f55e
children
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% Creates a matrix of size n,m with the values of val on the diagonals diag.
%   A = stripeMatrix(val,diags,n,m)
function A = stripeMatrix(val,diags,n,m)
    default_arg('m',n);

    D = ones(n,1)*val;
    A = spdiags(D,diags,n,m);
end