SVDI.H

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// * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * * * //
 
template<class T>
inline const T Foam::SVD::sign(const T& a, const T& b)
{
    return b >= 0 ? (a >= 0 ? a : -a) : (a >= 0 ? -a : a);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
inline const Foam::scalarRectangularMatrix& Foam::SVD::U() const
{
    return U_;
}
 
inline const Foam::scalarRectangularMatrix& Foam::SVD::V() const
{
    return V_;
}
 
inline const Foam::scalarDiagonalMatrix& Foam::SVD::S() const
{
    return S_;
}
 
inline const Foam::scalarRectangularMatrix& Foam::SVD::VSinvUt() const
{
    return VSinvUt_;
}
 
inline Foam::label Foam::SVD::nZeros() const
{
    return nZeros_;
}
 
inline Foam::scalar Foam::SVD::minNonZeroS() const
{
    scalar minS = S_[0];
    for (label i = 1; i < S_.size(); i++)
    {
        scalar s = S_[i];
        if (s > VSMALL && s < minS) minS = s;
    }
    return minS;
}
 
 
// ************************************************************************* //