la_lapack::gesvj Interface Reference

GESVJ: computes the singular value decomposition (SVD) of a complex M-by-N matrix A, where M >= N. The SVD of A is written as [++] [xx] [x0] [xx] A = U * SIGMA * V^*, [++] = [xx] * [ox] * [xx] [++] [xx] where SIGMA is an N-by-N diagonal matrix, U is an M-by-N orthonormal matrix, and V is an N-by-N unitary matrix. The diagonal elements of SIGMA are the singular values of A. The columns of U and V are the left and the right singular vectors of A, respectively. More...

Public Member Functions
pure subroutine	cgesvj (joba, jobu, jobv, m, n, a, lda, sva, mv, v, ldv, cwork, lwork, rwork, lrwork, info)
	la_cgesvj
pure subroutine	dgesvj (joba, jobu, jobv, m, n, a, lda, sva, mv, v, ldv, work, lwork, info)
	la_dgesvj
	la_qgesvj
pure subroutine	sgesvj (joba, jobu, jobv, m, n, a, lda, sva, mv, v, ldv, work, lwork, info)
	la_sgesvj
	la_wgesvj
pure subroutine	zgesvj (joba, jobu, jobv, m, n, a, lda, sva, mv, v, ldv, cwork, lwork, rwork, lrwork, info)
	la_zgesvj

Detailed Description

GESVJ: computes the singular value decomposition (SVD) of a complex M-by-N matrix A, where M >= N. The SVD of A is written as [++] [xx] [x0] [xx] A = U * SIGMA * V^*, [++] = [xx] * [ox] * [xx] [++] [xx] where SIGMA is an N-by-N diagonal matrix, U is an M-by-N orthonormal matrix, and V is an N-by-N unitary matrix. The diagonal elements of SIGMA are the singular values of A. The columns of U and V are the left and the right singular vectors of A, respectively.

Member Function/Subroutine Documentation

cgesvj()

pure subroutine la_lapack::gesvj::cgesvj	(	character, intent(in)	joba,
		character, intent(in)	jobu,
		character, intent(in)	jobv,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		complex(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(sp), dimension(n), intent(out)	sva,
		integer(ilp), intent(in)	mv,
		complex(sp), dimension(ldv,*), intent(inout)	v,
		integer(ilp), intent(in)	ldv,
		complex(sp), dimension(lwork), intent(inout)	cwork,
		integer(ilp), intent(in)	lwork,
		real(sp), dimension(lrwork), intent(inout)	rwork,
		integer(ilp), intent(in)	lrwork,
		integer(ilp), intent(out)	info
	)

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dgesvj()

pure subroutine la_lapack::gesvj::dgesvj	(	character, intent(in)	joba,
		character, intent(in)	jobu,
		character, intent(in)	jobv,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		real(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(dp), dimension(n), intent(out)	sva,
		integer(ilp), intent(in)	mv,
		real(dp), dimension(ldv,*), intent(inout)	v,
		integer(ilp), intent(in)	ldv,
		real(dp), dimension(lwork), intent(inout)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

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la_cgesvj()

la_lapack::gesvj::la_cgesvj

la_dgesvj()

la_lapack::gesvj::la_dgesvj

la_qgesvj()

la_lapack::gesvj::la_qgesvj

la_sgesvj()

la_lapack::gesvj::la_sgesvj

la_wgesvj()

la_lapack::gesvj::la_wgesvj

la_zgesvj()

la_lapack::gesvj::la_zgesvj

sgesvj()

pure subroutine la_lapack::gesvj::sgesvj	(	character, intent(in)	joba,
		character, intent(in)	jobu,
		character, intent(in)	jobv,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		real(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(sp), dimension(n), intent(out)	sva,
		integer(ilp), intent(in)	mv,
		real(sp), dimension(ldv,*), intent(inout)	v,
		integer(ilp), intent(in)	ldv,
		real(sp), dimension(lwork), intent(inout)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

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zgesvj()

pure subroutine la_lapack::gesvj::zgesvj	(	character, intent(in)	joba,
		character, intent(in)	jobu,
		character, intent(in)	jobv,
		integer(ilp), intent(in)	m,
		integer(ilp), intent(in)	n,
		complex(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		real(dp), dimension(n), intent(out)	sva,
		integer(ilp), intent(in)	mv,
		complex(dp), dimension(ldv,*), intent(inout)	v,
		integer(ilp), intent(in)	ldv,
		complex(dp), dimension(lwork), intent(inout)	cwork,
		integer(ilp), intent(in)	lwork,
		real(dp), dimension(lrwork), intent(inout)	rwork,
		integer(ilp), intent(in)	lrwork,
		integer(ilp), intent(out)	info
	)

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

• la_lapack.f90