la_lapack::spcon Interface Reference

SPCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex symmetric packed matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF. 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	cspcon (uplo, n, ap, ipiv, anorm, rcond, work, info)
	la_cspcon
pure subroutine	dspcon (uplo, n, ap, ipiv, anorm, rcond, work, iwork, info)
	la_dspcon
	la_qspcon
pure subroutine	sspcon (uplo, n, ap, ipiv, anorm, rcond, work, iwork, info)
	la_sspcon
	la_wspcon
pure subroutine	zspcon (uplo, n, ap, ipiv, anorm, rcond, work, info)
	la_zspcon

Detailed Description

SPCON: estimates the reciprocal of the condition number (in the 1-norm) of a complex symmetric packed matrix A using the factorization A = U*D*U**T or A = L*D*L**T computed by CSPTRF. 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

cspcon()

pure subroutine la_lapack::spcon::cspcon	(	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
	)

dspcon()

pure subroutine la_lapack::spcon::dspcon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(dp), dimension(*), intent(in)	ap,
		integer(ilp), dimension(*), intent(in)	ipiv,
		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_cspcon()

la_lapack::spcon::la_cspcon

la_dspcon()

la_lapack::spcon::la_dspcon

la_qspcon()

la_lapack::spcon::la_qspcon

la_sspcon()

la_lapack::spcon::la_sspcon

la_wspcon()

la_lapack::spcon::la_wspcon

la_zspcon()

la_lapack::spcon::la_zspcon

sspcon()

pure subroutine la_lapack::spcon::sspcon	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(sp), dimension(*), intent(in)	ap,
		integer(ilp), dimension(*), intent(in)	ipiv,
		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
	)

zspcon()

pure subroutine la_lapack::spcon::zspcon	(	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
	)

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

• la_lapack.f90