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view spdiag.m @ 701:e89715fe6a6e feature/optim

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add imaginary part to closure in hamiltonian
author Ylva Rydin <ylva.rydin@telia.com>
date Thu, 19 Oct 2017 09:48:18 +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