This subroutine computes the I-th eigenvalue of a symmetric rank-one modification of a 2-by-2 diagonal matrix diag( D ) + RHO * Z * transpose(Z) . The diagonal elements in the array D are assumed to satisfy D(i) < D(j) for i < j . We also assume RHO > 0 and that the Euclidean norm of the vector Z is one. More...

Public Member Functions
pure subroutine	dlaed5 (i, d, z, delta, rho, dlam)

	la_dlaed5

	la_qlaed5

pure subroutine	slaed5 (i, d, z, delta, rho, dlam)

	la_slaed5

Detailed Description

This subroutine computes the I-th eigenvalue of a symmetric rank-one modification of a 2-by-2 diagonal matrix diag( D ) + RHO * Z * transpose(Z) . The diagonal elements in the array D are assumed to satisfy D(i) < D(j) for i < j . We also assume RHO > 0 and that the Euclidean norm of the vector Z is one.

Member Function/Subroutine Documentation

◆ dlaed5()

pure subroutine la_lapack::laed5::dlaed5	(	integer(ilp), intent(in)	i,
		real(dp), dimension(2), intent(in)	d,
		real(dp), dimension(2), intent(in)	z,
		real(dp), dimension(2), intent(out)	delta,
		real(dp), intent(in)	rho,
		real(dp), intent(out)	dlam
	)

◆ la_dlaed5()

la_lapack::laed5::la_dlaed5

◆ la_qlaed5()

la_lapack::laed5::la_qlaed5

◆ la_slaed5()

la_lapack::laed5::la_slaed5

◆ slaed5()

pure subroutine la_lapack::laed5::slaed5	(	integer(ilp), intent(in)	i,
		real(sp), dimension(2), intent(in)	d,
		real(sp), dimension(2), intent(in)	z,
		real(sp), dimension(2), intent(out)	delta,
		real(sp), intent(in)	rho,
		real(sp), intent(out)	dlam
	)

The documentation for this interface was generated from the following file:

la_lapack.f90