LA_HERPVGRW: computes the reciprocal pivot growth factor norm(A)/norm(U). The "max absolute element" norm is used. If this is much less than 1, the stability of the LU factorization of the (equilibrated) matrix A could be poor. This also means that the solution X, estimated condition numbers, and error bounds could be unreliable. More...

Public Member Functions
real(sp) function	cla_herpvgrw (uplo, n, info, a, lda, af, ldaf, ipiv, work)

	la_cla_herpvgrw

	la_wla_herpvgrw

real(dp) function	zla_herpvgrw (uplo, n, info, a, lda, af, ldaf, ipiv, work)

	la_zla_herpvgrw

Detailed Description

LA_HERPVGRW: computes the reciprocal pivot growth factor norm(A)/norm(U). The "max absolute element" norm is used. If this is much less than 1, the stability of the LU factorization of the (equilibrated) matrix A could be poor. This also means that the solution X, estimated condition numbers, and error bounds could be unreliable.

Member Function/Subroutine Documentation

◆ cla_herpvgrw()

real(sp) function la_lapack::la_herpvgrw::cla_herpvgrw	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	info,
		complex(sp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		complex(sp), dimension(ldaf,*), intent(in)	af,
		integer(ilp), intent(in)	ldaf,
		integer(ilp), dimension(*), intent(in)	ipiv,
		real(sp), dimension(*), intent(out)	work
	)

◆ la_cla_herpvgrw()

la_lapack::la_herpvgrw::la_cla_herpvgrw

◆ la_wla_herpvgrw()

la_lapack::la_herpvgrw::la_wla_herpvgrw

◆ la_zla_herpvgrw()

la_lapack::la_herpvgrw::la_zla_herpvgrw

◆ zla_herpvgrw()

real(dp) function la_lapack::la_herpvgrw::zla_herpvgrw	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	info,
		complex(dp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		complex(dp), dimension(ldaf,*), intent(in)	af,
		integer(ilp), intent(in)	ldaf,
		integer(ilp), dimension(*), intent(in)	ipiv,
		real(dp), dimension(*), intent(out)	work
	)

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

la_lapack.f90