get_sturm_count_tri()

int stan::math::opencl_kernels::get_sturm_count_tri	(	const __global double *	diagonal,
		const __global double *	subdiagonal_squared,
		const double	shift,
		const int	n
	)

Calculates lower Sturm count of a tridiagonal matrix T - number of eigenvalues lower than shift.

Parameters

diagonal	Diagonal of T.
subdiagonal_squared	Squared elements of subdiagonal of T.
shift
n	Size of T.

Returns

Sturm count

Definition at line 26 of file mrrr.hpp.