la_lapack::syequb Interface Reference

SYEQUB: computes row and column scalings intended to equilibrate a symmetric matrix A (with respect to the Euclidean norm) and reduce its condition number. The scale factors S are computed by the BIN algorithm (see references) so that the scaled matrix B with elements B(i,j) = S(i)*A(i,j)*S(j) has a condition number within a factor N of the smallest possible condition number over all possible diagonal scalings. More...

Public Member Functions
pure subroutine	csyequb (uplo, n, a, lda, s, scond, amax, work, info)
	la_csyequb
pure subroutine	dsyequb (uplo, n, a, lda, s, scond, amax, work, info)
	la_dsyequb
	la_qsyequb
pure subroutine	ssyequb (uplo, n, a, lda, s, scond, amax, work, info)
	la_ssyequb
	la_wsyequb
pure subroutine	zsyequb (uplo, n, a, lda, s, scond, amax, work, info)
	la_zsyequb

Detailed Description

SYEQUB: computes row and column scalings intended to equilibrate a symmetric matrix A (with respect to the Euclidean norm) and reduce its condition number. The scale factors S are computed by the BIN algorithm (see references) so that the scaled matrix B with elements B(i,j) = S(i)*A(i,j)*S(j) has a condition number within a factor N of the smallest possible condition number over all possible diagonal scalings.

Member Function/Subroutine Documentation

csyequb()

pure subroutine la_lapack::syequb::csyequb	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		real(sp), dimension(*), intent(out)	s,
		real(sp), intent(out)	scond,
		real(sp), intent(out)	amax,
		complex(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

dsyequb()

pure subroutine la_lapack::syequb::dsyequb	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(dp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		real(dp), dimension(*), intent(out)	s,
		real(dp), intent(out)	scond,
		real(dp), intent(out)	amax,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

la_csyequb()

la_lapack::syequb::la_csyequb

la_dsyequb()

la_lapack::syequb::la_dsyequb

la_qsyequb()

la_lapack::syequb::la_qsyequb

la_ssyequb()

la_lapack::syequb::la_ssyequb

la_wsyequb()

la_lapack::syequb::la_wsyequb

la_zsyequb()

la_lapack::syequb::la_zsyequb

ssyequb()

pure subroutine la_lapack::syequb::ssyequb	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		real(sp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		real(sp), dimension(*), intent(out)	s,
		real(sp), intent(out)	scond,
		real(sp), intent(out)	amax,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

zsyequb()

pure subroutine la_lapack::syequb::zsyequb	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(lda,*), intent(in)	a,
		integer(ilp), intent(in)	lda,
		real(dp), dimension(*), intent(out)	s,
		real(dp), intent(out)	scond,
		real(dp), intent(out)	amax,
		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