la_lapack::trexc Interface Reference

TREXC: reorders the Schur factorization of a complex matrix A = Q*T*Q**H, so that the diagonal element of T with row index IFST is moved to row ILST. The Schur form T is reordered by a unitary similarity transformation Z**H*T*Z, and optionally the matrix Q of Schur vectors is updated by postmultplying it with Z. More...

Public Member Functions
pure subroutine	ctrexc (compq, n, t, ldt, q, ldq, ifst, ilst, info)
	la_ctrexc
subroutine	dtrexc (compq, n, t, ldt, q, ldq, ifst, ilst, work, info)
	la_dtrexc
	la_qtrexc
subroutine	strexc (compq, n, t, ldt, q, ldq, ifst, ilst, work, info)
	la_strexc
	la_wtrexc
pure subroutine	ztrexc (compq, n, t, ldt, q, ldq, ifst, ilst, info)
	la_ztrexc

Detailed Description

TREXC: reorders the Schur factorization of a complex matrix A = Q*T*Q**H, so that the diagonal element of T with row index IFST is moved to row ILST. The Schur form T is reordered by a unitary similarity transformation Z**H*T*Z, and optionally the matrix Q of Schur vectors is updated by postmultplying it with Z.

Member Function/Subroutine Documentation

ctrexc()

pure subroutine la_lapack::trexc::ctrexc	(	character, intent(in)	compq,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(ldt,*), intent(inout)	t,
		integer(ilp), intent(in)	ldt,
		complex(sp), dimension(ldq,*), intent(inout)	q,
		integer(ilp), intent(in)	ldq,
		integer(ilp), intent(in)	ifst,
		integer(ilp), intent(in)	ilst,
		integer(ilp), intent(out)	info
	)

dtrexc()

subroutine la_lapack::trexc::dtrexc	(	character, intent(in)	compq,
		integer(ilp), intent(in)	n,
		real(dp), dimension(ldt,*), intent(inout)	t,
		integer(ilp), intent(in)	ldt,
		real(dp), dimension(ldq,*), intent(inout)	q,
		integer(ilp), intent(in)	ldq,
		integer(ilp), intent(inout)	ifst,
		integer(ilp), intent(inout)	ilst,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

la_ctrexc()

la_lapack::trexc::la_ctrexc

la_dtrexc()

la_lapack::trexc::la_dtrexc

la_qtrexc()

la_lapack::trexc::la_qtrexc

la_strexc()

la_lapack::trexc::la_strexc

la_wtrexc()

la_lapack::trexc::la_wtrexc

la_ztrexc()

la_lapack::trexc::la_ztrexc

strexc()

subroutine la_lapack::trexc::strexc	(	character, intent(in)	compq,
		integer(ilp), intent(in)	n,
		real(sp), dimension(ldt,*), intent(inout)	t,
		integer(ilp), intent(in)	ldt,
		real(sp), dimension(ldq,*), intent(inout)	q,
		integer(ilp), intent(in)	ldq,
		integer(ilp), intent(inout)	ifst,
		integer(ilp), intent(inout)	ilst,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

ztrexc()

pure subroutine la_lapack::trexc::ztrexc	(	character, intent(in)	compq,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(ldt,*), intent(inout)	t,
		integer(ilp), intent(in)	ldt,
		complex(dp), dimension(ldq,*), intent(inout)	q,
		integer(ilp), intent(in)	ldq,
		integer(ilp), intent(in)	ifst,
		integer(ilp), intent(in)	ilst,
		integer(ilp), intent(out)	info
	)

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

• la_lapack.f90