la_lapack::steqr Interface Reference

STEQR: computes all eigenvalues and, optionally, eigenvectors of a symmetric tridiagonal matrix using the implicit QL or QR method. The eigenvectors of a full or band complex Hermitian matrix can also be found if CHETRD or CHPTRD or CHBTRD has been used to reduce this matrix to tridiagonal form. More...

Public Member Functions
pure subroutine	csteqr (compz, n, d, e, z, ldz, work, info)
	la_csteqr
pure subroutine	dsteqr (compz, n, d, e, z, ldz, work, info)
	la_dsteqr
	la_qsteqr
pure subroutine	ssteqr (compz, n, d, e, z, ldz, work, info)
	la_ssteqr
	la_wsteqr
pure subroutine	zsteqr (compz, n, d, e, z, ldz, work, info)
	la_zsteqr

Detailed Description

STEQR: computes all eigenvalues and, optionally, eigenvectors of a symmetric tridiagonal matrix using the implicit QL or QR method. The eigenvectors of a full or band complex Hermitian matrix can also be found if CHETRD or CHPTRD or CHBTRD has been used to reduce this matrix to tridiagonal form.

Member Function/Subroutine Documentation

csteqr()

pure subroutine la_lapack::steqr::csteqr	(	character, intent(in)	compz,
		integer(ilp), intent(in)	n,
		real(sp), dimension(*), intent(inout)	d,
		real(sp), dimension(*), intent(inout)	e,
		complex(sp), dimension(ldz,*), intent(inout)	z,
		integer(ilp), intent(in)	ldz,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

dsteqr()

pure subroutine la_lapack::steqr::dsteqr	(	character, intent(in)	compz,
		integer(ilp), intent(in)	n,
		real(dp), dimension(*), intent(inout)	d,
		real(dp), dimension(*), intent(inout)	e,
		real(dp), dimension(ldz,*), intent(inout)	z,
		integer(ilp), intent(in)	ldz,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

la_csteqr()

la_lapack::steqr::la_csteqr

la_dsteqr()

la_lapack::steqr::la_dsteqr

la_qsteqr()

la_lapack::steqr::la_qsteqr

la_ssteqr()

la_lapack::steqr::la_ssteqr

la_wsteqr()

la_lapack::steqr::la_wsteqr

la_zsteqr()

la_lapack::steqr::la_zsteqr

ssteqr()

pure subroutine la_lapack::steqr::ssteqr	(	character, intent(in)	compz,
		integer(ilp), intent(in)	n,
		real(sp), dimension(*), intent(inout)	d,
		real(sp), dimension(*), intent(inout)	e,
		real(sp), dimension(ldz,*), intent(inout)	z,
		integer(ilp), intent(in)	ldz,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

zsteqr()

pure subroutine la_lapack::steqr::zsteqr	(	character, intent(in)	compz,
		integer(ilp), intent(in)	n,
		real(dp), dimension(*), intent(inout)	d,
		real(dp), dimension(*), intent(inout)	e,
		complex(dp), dimension(ldz,*), intent(inout)	z,
		integer(ilp), intent(in)	ldz,
		real(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