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view spdiag.m @ 457:8ba675cc8827 feature/grids

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Add note about how to handle boundary groups
author Jonatan Werpers <jonatan@werpers.com>
date Mon, 19 Jun 2017 09:39:50 +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