la_lapack::gbbrd Interface Reference

GBBRD: reduces a complex general m-by-n band matrix A to real upper bidiagonal form B by a unitary transformation: Q**H * A * P = B. The routine computes B, and optionally forms Q or P**H, or computes Q**H*C for a given matrix C. More...

Public Member Functions
pure subroutine	cgbbrd (vect, m, n, ncc, kl, ku, ab, ldab, d, e, q, ldq, pt, ldpt, c, ldc, work, rwork, info)
	la_cgbbrd
pure subroutine	dgbbrd (vect, m, n, ncc, kl, ku, ab, ldab, d, e, q, ldq, pt, ldpt, c, ldc, work, info)
	la_dgbbrd
	la_qgbbrd
pure subroutine	sgbbrd (vect, m, n, ncc, kl, ku, ab, ldab, d, e, q, ldq, pt, ldpt, c, ldc, work, info)
	la_sgbbrd
	la_wgbbrd
pure subroutine	zgbbrd (vect, m, n, ncc, kl, ku, ab, ldab, d, e, q, ldq, pt, ldpt, c, ldc, work, rwork, info)
	la_zgbbrd

Detailed Description

GBBRD: reduces a complex general m-by-n band matrix A to real upper bidiagonal form B by a unitary transformation: Q**H * A * P = B. The routine computes B, and optionally forms Q or P**H, or computes Q**H*C for a given matrix C.

Member Function/Subroutine Documentation

cgbbrd()

pure subroutine la_lapack::gbbrd::cgbbrd	(	character, intent(in)	vect,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	ncc,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		complex(sp), dimension(ldab,*), intent(inout)	ab,
		integer(ilp), intent(in)	ldab,
		real(sp), dimension(*), intent(out)	d,
		real(sp), dimension(*), intent(out)	e,
		complex(sp), dimension(ldq,*), intent(out)	q,
		integer(ilp), intent(in)	ldq,
		complex(sp), dimension(ldpt,*), intent(out)	pt,
		integer(ilp), intent(in)	ldpt,
		complex(sp), dimension(ldc,*), intent(inout)	c,
		integer(ilp), intent(in)	ldc,
		complex(sp), dimension(*), intent(out)	work,
		real(sp), dimension(*), intent(out)	rwork,
		integer(ilp), intent(out)	info )

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dgbbrd()

pure subroutine la_lapack::gbbrd::dgbbrd	(	character, intent(in)	vect,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	ncc,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		real(dp), dimension(ldab,*), intent(inout)	ab,
		integer(ilp), intent(in)	ldab,
		real(dp), dimension(*), intent(out)	d,
		real(dp), dimension(*), intent(out)	e,
		real(dp), dimension(ldq,*), intent(out)	q,
		integer(ilp), intent(in)	ldq,
		real(dp), dimension(ldpt,*), intent(out)	pt,
		integer(ilp), intent(in)	ldpt,
		real(dp), dimension(ldc,*), intent(inout)	c,
		integer(ilp), intent(in)	ldc,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info )

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la_cgbbrd()

la_lapack::gbbrd::la_cgbbrd

la_dgbbrd()

la_lapack::gbbrd::la_dgbbrd

la_qgbbrd()

la_lapack::gbbrd::la_qgbbrd

la_sgbbrd()

la_lapack::gbbrd::la_sgbbrd

la_wgbbrd()

la_lapack::gbbrd::la_wgbbrd

la_zgbbrd()

la_lapack::gbbrd::la_zgbbrd

sgbbrd()

pure subroutine la_lapack::gbbrd::sgbbrd	(	character, intent(in)	vect,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	ncc,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		real(sp), dimension(ldab,*), intent(inout)	ab,
		integer(ilp), intent(in)	ldab,
		real(sp), dimension(*), intent(out)	d,
		real(sp), dimension(*), intent(out)	e,
		real(sp), dimension(ldq,*), intent(out)	q,
		integer(ilp), intent(in)	ldq,
		real(sp), dimension(ldpt,*), intent(out)	pt,
		integer(ilp), intent(in)	ldpt,
		real(sp), dimension(ldc,*), intent(inout)	c,
		integer(ilp), intent(in)	ldc,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info )

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zgbbrd()

pure subroutine la_lapack::gbbrd::zgbbrd	(	character, intent(in)	vect,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	ncc,
		integer(ilp), intent(in)	kl,
		integer(ilp), intent(in)	ku,
		complex(dp), dimension(ldab,*), intent(inout)	ab,
		integer(ilp), intent(in)	ldab,
		real(dp), dimension(*), intent(out)	d,
		real(dp), dimension(*), intent(out)	e,
		complex(dp), dimension(ldq,*), intent(out)	q,
		integer(ilp), intent(in)	ldq,
		complex(dp), dimension(ldpt,*), intent(out)	pt,
		integer(ilp), intent(in)	ldpt,
		complex(dp), dimension(ldc,*), intent(inout)	c,
		integer(ilp), intent(in)	ldc,
		complex(dp), dimension(*), intent(out)	work,
		real(dp), dimension(*), intent(out)	rwork,
		integer(ilp), intent(out)	info )

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

• la_lapack.f90