view spdiag.m @ 509:566304a5733e feature/quantumTriangles

changed the magnus midpoint rule
author Ylva Rydin <ylva.rydin@telia.com>
date Fri, 02 Jun 2017 17:43:59 +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