la_lapack::pocon Interface Reference

POCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex Hermitian positive definite matrix using the Cholesky factorization A = U**H*U or A = L*L**H computed by CPOTRF. 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	cpocon (uplo, n, a, lda, anorm, rcond, work, rwork, info)
	la_cpocon
pure subroutine	dpocon (uplo, n, a, lda, anorm, rcond, work, iwork, info)
	la_dpocon
	la_qpocon
pure subroutine	spocon (uplo, n, a, lda, anorm, rcond, work, iwork, info)
	la_spocon
	la_wpocon
pure subroutine	zpocon (uplo, n, a, lda, anorm, rcond, work, rwork, info)
	la_zpocon

Detailed Description

POCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex Hermitian positive definite matrix using the Cholesky factorization A = U**H*U or A = L*L**H computed by CPOTRF. 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

cpocon()

pure subroutine la_lapack::pocon::cpocon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(sp), intent(in)	anorm,
		real(sp), intent(out)	rcond,
		complex(sp), dimension(*), intent(out)	work,
		real(sp), dimension(*), intent(out)	rwork,
		integer(ilp), intent(out)	info
	)

dpocon()

pure subroutine la_lapack::pocon::dpocon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(dp), intent(in)	anorm,
		real(dp), intent(out)	rcond,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), dimension(*), intent(out)	iwork,
		integer(ilp), intent(out)	info
	)

la_cpocon()

la_lapack::pocon::la_cpocon

la_dpocon()

la_lapack::pocon::la_dpocon

la_qpocon()

la_lapack::pocon::la_qpocon

la_spocon()

la_lapack::pocon::la_spocon

la_wpocon()

la_lapack::pocon::la_wpocon

la_zpocon()

la_lapack::pocon::la_zpocon

spocon()

pure subroutine la_lapack::pocon::spocon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(sp), intent(in)	anorm,
		real(sp), intent(out)	rcond,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), dimension(*), intent(out)	iwork,
		integer(ilp), intent(out)	info
	)

zpocon()

pure subroutine la_lapack::pocon::zpocon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(dp), intent(in)	anorm,
		real(dp), intent(out)	rcond,
		complex(dp), dimension(*), intent(out)	work,
		real(dp), dimension(*), intent(out)	rwork,
		integer(ilp), intent(out)	info
	)

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

• la_lapack.f90