distance_norm2() [1/12]

template<typename T >

T cntr::distance_norm2	(	int	tstp,
		herm_matrix< T > &	g1,
		herm_matrix< T > &	g2
	)

Evaluate the Euclidean norm between two herm_matrix at a given time step.

Purpose

Evaluate the Euclidean norm between twoherm_matrix ( \(g_1,g_2\)) at a given time step (tstp). To evaluate the norm, the elements of retarded, lesser and left-mixing components at the time step is used. The norm is not normalized per elements, but it is the summention of all the elements.

Parameters

tstp	[int]time step
g1	herm_matrix
g2	herm_matrix

Definition at line 1621 of file cntr_utilities_impl.hpp.

References cntr::herm_matrix< T >::nt(), cntr::herm_matrix< T >::ntau(), and cntr::herm_matrix< T >::size1().

                                                                   {
    assert(g1.size1() == g2.size1());
    assert(g1.ntau() == g2.ntau());
    assert(g1.nt() >= tstp);
    assert(g2.nt() >= tstp);
    if (g1.size1() == 1)
        return distance_norm2_dispatch<T, herm_matrix<T>, 1>(tstp, g1, g2);
    else
        return distance_norm2_dispatch<T, herm_matrix<T>, LARGESIZE>(tstp, g1,
                                                                     g2);
}

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