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view spdiag.m @ 355:69b078cf8072 feature/hypsyst

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Upwind doed not work in the non curve-linear case.
author Ylva Rydin <ylva.rydin@telia.com>
date Thu, 08 Dec 2016 10:42:11 +0100
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