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view spdiag.m @ 646:0990765e3e4d feature/d1_staggered

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Fix bug in diracDiscr
author Martin Almquist <malmquist@stanford.edu>
date Tue, 14 Nov 2017 15:01:50 -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