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view spdiag.m @ 642:8f0ee6ba6313 feature/d1_staggered

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Add scheme Staggered1DAcoustics
author Martin Almquist <malmquist@stanford.edu>
date Sat, 11 Nov 2017 20:30:13 -0800
parents 8e0067aef5b0
children e76321b89c1e
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line source

function A = spdiag(a,i)
    default_arg('i',0);

    if isrow(a)
        a = a';
    end

    n = length(a)-abs(i);
    A = spdiags(a,i,n,n);
end