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view spdiag.m @ 506:2047ff9640b3 feature/quantumTriangles

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tried to make a symmetric scheme
author Ylva Rydin <ylva.rydin@telia.com>
date Mon, 29 May 2017 13:54:16 +0200
parents 9c0192cf099f
children 8e0067aef5b0
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function A = spdiag(a,i)
    default_arg('i',0);
    n = length(a)-abs(i);
    A = spdiags(a,i,n,n);
end