HECON: estimates the reciprocal of the condition number of a complex Hermitian matrix A using the factorization A = U*D*U**H or A = L*D*L**H computed by CHETRF. 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	checon (uplo, n, a, lda, ipiv, anorm, rcond, work, info)

	la_checon

	la_whecon

pure subroutine	zhecon (uplo, n, a, lda, ipiv, anorm, rcond, work, info)

	la_zhecon

Detailed Description

HECON: estimates the reciprocal of the condition number of a complex Hermitian matrix A using the factorization A = U*D*U**H or A = L*D*L**H computed by CHETRF. 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

◆ checon()

pure subroutine la_lapack::hecon::checon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		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_checon()

la_lapack::hecon::la_checon

◆ la_whecon()

la_lapack::hecon::la_whecon

◆ la_zhecon()

la_lapack::hecon::la_zhecon

◆ zhecon()

pure subroutine la_lapack::hecon::zhecon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		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 )