LAQTR: solves the real quasi-triangular system op(T)*p = scale*c, if LREAL = .TRUE. or the complex quasi-triangular systems op(T + iB)*(p+iq) = scale*(c+id), if LREAL = .FALSE. in real arithmetic, where T is upper quasi-triangular. If LREAL = .FALSE., then the first diagonal block of T must be 1 by 1, B is the specially structured matrix B = [ b(1) b(2) ... b(n) ] [ w ] [ w ] [ . ] [ w ] op(A) = A or A**T, A**T denotes the transpose of matrix A. On input, X = [ c ]. On output, X = [ p ]. [ d ] [ q ] This subroutine is designed for the condition number estimation in routine DTRSNA. More...

Public Member Functions
subroutine	dlaqtr (ltran, lreal, n, t, ldt, b, w, scale, x, work, info)

	la_dlaqtr

	la_qlaqtr

subroutine	slaqtr (ltran, lreal, n, t, ldt, b, w, scale, x, work, info)

	la_slaqtr

Detailed Description

LAQTR: solves the real quasi-triangular system op(T)*p = scale*c, if LREAL = .TRUE. or the complex quasi-triangular systems op(T + iB)*(p+iq) = scale*(c+id), if LREAL = .FALSE. in real arithmetic, where T is upper quasi-triangular. If LREAL = .FALSE., then the first diagonal block of T must be 1 by 1, B is the specially structured matrix B = [ b(1) b(2) ... b(n) ] [ w ] [ w ] [ . ] [ w ] op(A) = A or A**T, A**T denotes the transpose of matrix A. On input, X = [ c ]. On output, X = [ p ]. [ d ] [ q ] This subroutine is designed for the condition number estimation in routine DTRSNA.

Member Function/Subroutine Documentation

◆ dlaqtr()

subroutine la_lapack::laqtr::dlaqtr	(	logical(lk), intent(in)	ltran,
		logical(lk), intent(in)	lreal,
		integer(ilp), intent(in)	n,
		real(dp), dimension(ldt,*), intent(in)	t,
		integer(ilp), intent(in)	ldt,
		real(dp), dimension(*), intent(in)	b,
		real(dp), intent(in)	w,
		real(dp), intent(out)	scale,
		real(dp), dimension(*), intent(inout)	x,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

◆ la_dlaqtr()

la_lapack::laqtr::la_dlaqtr

◆ la_qlaqtr()

la_lapack::laqtr::la_qlaqtr

◆ la_slaqtr()

la_lapack::laqtr::la_slaqtr

◆ slaqtr()

subroutine la_lapack::laqtr::slaqtr	(	logical(lk), intent(in)	ltran,
		logical(lk), intent(in)	lreal,
		integer(ilp), intent(in)	n,
		real(sp), dimension(ldt,*), intent(in)	t,
		integer(ilp), intent(in)	ldt,
		real(sp), dimension(*), intent(in)	b,
		real(sp), intent(in)	w,
		real(sp), intent(out)	scale,
		real(sp), dimension(*), intent(inout)	x,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

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

la_lapack.f90