la_lapack::gbcon Interface Reference

GBCON: estimates the reciprocal of the condition number of a complex general band matrix A, in either the 1-norm or the infinity-norm, using the LU factorization computed by CGBTRF. 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	cgbcon (norm, n, kl, ku, ab, ldab, ipiv, anorm, rcond, work, rwork, info)
	la_cgbcon
pure subroutine	dgbcon (norm, n, kl, ku, ab, ldab, ipiv, anorm, rcond, work, iwork, info)
	la_dgbcon
	la_qgbcon
pure subroutine	sgbcon (norm, n, kl, ku, ab, ldab, ipiv, anorm, rcond, work, iwork, info)
	la_sgbcon
	la_wgbcon
pure subroutine	zgbcon (norm, n, kl, ku, ab, ldab, ipiv, anorm, rcond, work, rwork, info)
	la_zgbcon

Detailed Description

GBCON: estimates the reciprocal of the condition number of a complex general band matrix A, in either the 1-norm or the infinity-norm, using the LU factorization computed by CGBTRF. 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

cgbcon()

pure subroutine la_lapack::gbcon::cgbcon	(	character, intent(in)	norm,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		complex(sp), dimension(ldab,*), intent(in)	ab,
		integer(ilp), intent(in)	ldab,
		integer(ilp), dimension(*), intent(in)	ipiv,
		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
	)

Here is the call graph for this function:

dgbcon()

pure subroutine la_lapack::gbcon::dgbcon	(	character, intent(in)	norm,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		real(dp), dimension(ldab,*), intent(in)	ab,
		integer(ilp), intent(in)	ldab,
		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
	)

Here is the call graph for this function:

la_cgbcon()

la_lapack::gbcon::la_cgbcon

la_dgbcon()

la_lapack::gbcon::la_dgbcon

la_qgbcon()

la_lapack::gbcon::la_qgbcon

la_sgbcon()

la_lapack::gbcon::la_sgbcon

la_wgbcon()

la_lapack::gbcon::la_wgbcon

la_zgbcon()

la_lapack::gbcon::la_zgbcon

sgbcon()

pure subroutine la_lapack::gbcon::sgbcon	(	character, intent(in)	norm,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		real(sp), dimension(ldab,*), intent(in)	ab,
		integer(ilp), intent(in)	ldab,
		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
	)

Here is the call graph for this function:

zgbcon()

pure subroutine la_lapack::gbcon::zgbcon	(	character, intent(in)	norm,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		complex(dp), dimension(ldab,*), intent(in)	ab,
		integer(ilp), intent(in)	ldab,
		integer(ilp), dimension(*), intent(in)	ipiv,
		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
	)

Here is the call graph for this function:

---

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

• la_lapack.f90