HPCON: estimates the reciprocal of the condition number of a complex Hermitian packed matrix A using the factorization A = U*D*U**H or A = L*D*L**H computed by CHPTRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))). More...

Public Member Functions
pure subroutine	chpcon (uplo, n, ap, ipiv, anorm, rcond, work, info)

	la_chpcon

	la_whpcon

pure subroutine	zhpcon (uplo, n, ap, ipiv, anorm, rcond, work, info)

	la_zhpcon

Detailed Description

HPCON: estimates the reciprocal of the condition number of a complex Hermitian packed matrix A using the factorization A = U*D*U**H or A = L*D*L**H computed by CHPTRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / (ANORM * norm(inv(A))).

Member Function/Subroutine Documentation

◆ chpcon()

pure subroutine la_lapack::hpcon::chpcon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(*), intent(in)	ap,
		integer(ilp), dimension(*), intent(in)	ipiv,
		real(sp), intent(in)	anorm,
		real(sp), intent(out)	rcond,
		complex(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info )

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◆ la_chpcon()

la_lapack::hpcon::la_chpcon

◆ la_whpcon()

la_lapack::hpcon::la_whpcon

◆ la_zhpcon()

la_lapack::hpcon::la_zhpcon

◆ zhpcon()

pure subroutine la_lapack::hpcon::zhpcon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(*), intent(in)	ap,
		integer(ilp), dimension(*), intent(in)	ipiv,
		real(dp), intent(in)	anorm,
		real(dp), intent(out)	rcond,
		complex(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info )