laein Interface

public interface laein

LAEIN uses inverse iteration to find a right or left eigenvector corresponding to the eigenvalue W of a complex upper Hessenberg matrix H.

Subroutines

public pure subroutine claein(rightv, noinit, n, h, ldh, w, v, b, ldb, rwork, eps3, smlnum, info)

Arguments

Type	Intent	Optional	Attributes		Name
logical(kind=lk),	intent(in)			::	rightv
logical(kind=lk),	intent(in)			::	noinit
integer(kind=ilp),	intent(in)			::	n
complex(kind=sp),	intent(in)			::	h(ldh,*)
integer(kind=ilp),	intent(in)			::	ldh
complex(kind=sp),	intent(in)			::	w
complex(kind=sp),	intent(inout)			::	v(*)
complex(kind=sp),	intent(out)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
real(kind=sp),	intent(out)			::	rwork(*)
real(kind=sp),	intent(in)			::	eps3
real(kind=sp),	intent(in)			::	smlnum
integer(kind=ilp),	intent(out)			::	info

public pure subroutine dlaein(rightv, noinit, n, h, ldh, wr, wi, vr, vi, b, ldb, work, eps3, smlnum, bignum, info)

Arguments

Type	Intent	Optional	Attributes		Name
logical(kind=lk),	intent(in)			::	rightv
logical(kind=lk),	intent(in)			::	noinit
integer(kind=ilp),	intent(in)			::	n
real(kind=dp),	intent(in)			::	h(ldh,*)
integer(kind=ilp),	intent(in)			::	ldh
real(kind=dp),	intent(in)			::	wr
real(kind=dp),	intent(in)			::	wi
real(kind=dp),	intent(inout)			::	vr(*)
real(kind=dp),	intent(inout)			::	vi(*)
real(kind=dp),	intent(out)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
real(kind=dp),	intent(out)			::	work(*)
real(kind=dp),	intent(in)			::	eps3
real(kind=dp),	intent(in)			::	smlnum
real(kind=dp),	intent(in)			::	bignum
integer(kind=ilp),	intent(out)			::	info

public pure subroutine slaein(rightv, noinit, n, h, ldh, wr, wi, vr, vi, b, ldb, work, eps3, smlnum, bignum, info)

Arguments

Type	Intent	Optional	Attributes		Name
logical(kind=lk),	intent(in)			::	rightv
logical(kind=lk),	intent(in)			::	noinit
integer(kind=ilp),	intent(in)			::	n
real(kind=sp),	intent(in)			::	h(ldh,*)
integer(kind=ilp),	intent(in)			::	ldh
real(kind=sp),	intent(in)			::	wr
real(kind=sp),	intent(in)			::	wi
real(kind=sp),	intent(inout)			::	vr(*)
real(kind=sp),	intent(inout)			::	vi(*)
real(kind=sp),	intent(out)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
real(kind=sp),	intent(out)			::	work(*)
real(kind=sp),	intent(in)			::	eps3
real(kind=sp),	intent(in)			::	smlnum
real(kind=sp),	intent(in)			::	bignum
integer(kind=ilp),	intent(out)			::	info

public pure subroutine zlaein(rightv, noinit, n, h, ldh, w, v, b, ldb, rwork, eps3, smlnum, info)

Arguments

Type	Intent	Optional	Attributes		Name
logical(kind=lk),	intent(in)			::	rightv
logical(kind=lk),	intent(in)			::	noinit
integer(kind=ilp),	intent(in)			::	n
complex(kind=dp),	intent(in)			::	h(ldh,*)
integer(kind=ilp),	intent(in)			::	ldh
complex(kind=dp),	intent(in)			::	w
complex(kind=dp),	intent(inout)			::	v(*)
complex(kind=dp),	intent(out)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
real(kind=dp),	intent(out)			::	rwork(*)
real(kind=dp),	intent(in)			::	eps3
real(kind=dp),	intent(in)			::	smlnum
integer(kind=ilp),	intent(out)			::	info

Module Procedures

public interface stdlib_claein()

Arguments

None

public interface stdlib_dlaein()

Arguments

None

public interface stdlib_slaein()

Arguments

None

public interface stdlib_zlaein()

Arguments

None