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view semiDefIneq.m @ 362:ded4156e53e2

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Added 2nd order accurate 2nd derivative with variable coefficents in a separate implementation file, used by the class D2Variable.
author Martin Almquist <martin.almquist@it.uu.se>
date Tue, 20 Dec 2016 15:04:02 +0100
parents 0a881a3dc9a9
children eaf557023fbe
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function ineq = semiDefIneq(A)
    [m, sub] = minors(A);

    ineqsys = true;
    for i = 1:length(m)
        ineqsys = ineqsys & m(i) >= 0;
    end

    ineq = simplify(ineqsys);

    str = toString(ineq);
    fprintf('%s\n',strjoin(strsplit(str,' & '), '\n'));
end