la_lapack::gecon Interface Reference

GECON: estimates the reciprocal of the condition number of a general complex matrix A, in either the 1-norm or the infinity-norm, using the LU factorization computed by CGETRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / ( norm(A) * norm(inv(A)) ). More...

Public Member Functions
pure subroutine	cgecon (norm, n, a, lda, anorm, rcond, work, rwork, info)
	la_cgecon
pure subroutine	dgecon (norm, n, a, lda, anorm, rcond, work, iwork, info)
	la_dgecon
	la_qgecon
pure subroutine	sgecon (norm, n, a, lda, anorm, rcond, work, iwork, info)
	la_sgecon
	la_wgecon
pure subroutine	zgecon (norm, n, a, lda, anorm, rcond, work, rwork, info)
	la_zgecon

Detailed Description

GECON: estimates the reciprocal of the condition number of a general complex matrix A, in either the 1-norm or the infinity-norm, using the LU factorization computed by CGETRF. An estimate is obtained for norm(inv(A)), and the reciprocal of the condition number is computed as RCOND = 1 / ( norm(A) * norm(inv(A)) ).

Member Function/Subroutine Documentation

cgecon()

pure subroutine la_lapack::gecon::cgecon	(	character, intent(in)	norm,
		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
	)

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dgecon()

pure subroutine la_lapack::gecon::dgecon	(	character, intent(in)	norm,
		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
	)

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la_cgecon()

la_lapack::gecon::la_cgecon

la_dgecon()

la_lapack::gecon::la_dgecon

la_qgecon()

la_lapack::gecon::la_qgecon

la_sgecon()

la_lapack::gecon::la_sgecon

la_wgecon()

la_lapack::gecon::la_wgecon

la_zgecon()

la_lapack::gecon::la_zgecon

sgecon()

pure subroutine la_lapack::gecon::sgecon	(	character, intent(in)	norm,
		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
	)

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zgecon()

pure subroutine la_lapack::gecon::zgecon	(	character, intent(in)	norm,
		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