la_qr::qr Interface Reference

QR factorization of a matrix. More...

Public Member Functions
pure subroutine	la_s_qr (a, q, r, overwrite_a, storage, err)
pure subroutine	la_d_qr (a, q, r, overwrite_a, storage, err)
pure subroutine	la_q_qr (a, q, r, overwrite_a, storage, err)
pure subroutine	la_c_qr (a, q, r, overwrite_a, storage, err)
pure subroutine	la_z_qr (a, q, r, overwrite_a, storage, err)
pure subroutine	la_w_qr (a, q, r, overwrite_a, storage, err)

Detailed Description

QR factorization of a matrix.

Member Function/Subroutine Documentation

la_c_qr()

pure subroutine la_qr::qr::la_c_qr	(	complex(sp), dimension(:,:), intent(inout), target	a,
		complex(sp), dimension(:,:), intent(out), target, contiguous	q,
		complex(sp), dimension(:,:), intent(out), target, contiguous	r,
		logical(lk), intent(in), optional	overwrite_a,
		complex(sp), dimension(:), intent(inout), optional, target	storage,
		type(la_state), intent(out), optional	err
	)

Parameters

[in,out]	a	Input matrix a[m,n]
[out]	q	Orthogonal matrix Q ([m,m], or [m,k] if reduced)
[out]	r	Upper triangular matrix R ([m,n], or [k,n] if reduced)
[in]	overwrite_a	[optional] Can A data be overwritten and destroyed?
[in,out]	storage	[optional] Provide pre-allocated workspace, size to be checked with qr_space
[out]	err	[optional] state return flag. On error if not requested, the code will stop

la_d_qr()

pure subroutine la_qr::qr::la_d_qr	(	real(dp), dimension(:,:), intent(inout), target	a,
		real(dp), dimension(:,:), intent(out), target, contiguous	q,
		real(dp), dimension(:,:), intent(out), target, contiguous	r,
		logical(lk), intent(in), optional	overwrite_a,
		real(dp), dimension(:), intent(inout), optional, target	storage,
		type(la_state), intent(out), optional	err
	)

Parameters

[in,out]	a	Input matrix a[m,n]
[out]	q	Orthogonal matrix Q ([m,m], or [m,k] if reduced)
[out]	r	Upper triangular matrix R ([m,n], or [k,n] if reduced)
[in]	overwrite_a	[optional] Can A data be overwritten and destroyed?
[in,out]	storage	[optional] Provide pre-allocated workspace, size to be checked with qr_space
[out]	err	[optional] state return flag. On error if not requested, the code will stop

la_q_qr()

pure subroutine la_qr::qr::la_q_qr	(	real(qp), dimension(:,:), intent(inout), target	a,
		real(qp), dimension(:,:), intent(out), target, contiguous	q,
		real(qp), dimension(:,:), intent(out), target, contiguous	r,
		logical(lk), intent(in), optional	overwrite_a,
		real(qp), dimension(:), intent(inout), optional, target	storage,
		type(la_state), intent(out), optional	err
	)

Parameters

[in,out]	a	Input matrix a[m,n]
[out]	q	Orthogonal matrix Q ([m,m], or [m,k] if reduced)
[out]	r	Upper triangular matrix R ([m,n], or [k,n] if reduced)
[in]	overwrite_a	[optional] Can A data be overwritten and destroyed?
[in,out]	storage	[optional] Provide pre-allocated workspace, size to be checked with qr_space
[out]	err	[optional] state return flag. On error if not requested, the code will stop

la_s_qr()

pure subroutine la_qr::qr::la_s_qr	(	real(sp), dimension(:,:), intent(inout), target	a,
		real(sp), dimension(:,:), intent(out), target, contiguous	q,
		real(sp), dimension(:,:), intent(out), target, contiguous	r,
		logical(lk), intent(in), optional	overwrite_a,
		real(sp), dimension(:), intent(inout), optional, target	storage,
		type(la_state), intent(out), optional	err
	)

Parameters

[in,out]	a	Input matrix a[m,n]
[out]	q	Orthogonal matrix Q ([m,m], or [m,k] if reduced)
[out]	r	Upper triangular matrix R ([m,n], or [k,n] if reduced)
[in]	overwrite_a	[optional] Can A data be overwritten and destroyed?
[in,out]	storage	[optional] Provide pre-allocated workspace, size to be checked with qr_space
[out]	err	[optional] state return flag. On error if not requested, the code will stop

la_w_qr()

pure subroutine la_qr::qr::la_w_qr	(	complex(qp), dimension(:,:), intent(inout), target	a,
		complex(qp), dimension(:,:), intent(out), target, contiguous	q,
		complex(qp), dimension(:,:), intent(out), target, contiguous	r,
		logical(lk), intent(in), optional	overwrite_a,
		complex(qp), dimension(:), intent(inout), optional, target	storage,
		type(la_state), intent(out), optional	err
	)

Parameters

[in,out]	a	Input matrix a[m,n]
[out]	q	Orthogonal matrix Q ([m,m], or [m,k] if reduced)
[out]	r	Upper triangular matrix R ([m,n], or [k,n] if reduced)
[in]	overwrite_a	[optional] Can A data be overwritten and destroyed?
[in,out]	storage	[optional] Provide pre-allocated workspace, size to be checked with qr_space
[out]	err	[optional] state return flag. On error if not requested, the code will stop

la_z_qr()

pure subroutine la_qr::qr::la_z_qr	(	complex(dp), dimension(:,:), intent(inout), target	a,
		complex(dp), dimension(:,:), intent(out), target, contiguous	q,
		complex(dp), dimension(:,:), intent(out), target, contiguous	r,
		logical(lk), intent(in), optional	overwrite_a,
		complex(dp), dimension(:), intent(inout), optional, target	storage,
		type(la_state), intent(out), optional	err
	)

Parameters

[in,out]	a	Input matrix a[m,n]
[out]	q	Orthogonal matrix Q ([m,m], or [m,k] if reduced)
[out]	r	Upper triangular matrix R ([m,n], or [k,n] if reduced)
[in]	overwrite_a	[optional] Can A data be overwritten and destroyed?
[in,out]	storage	[optional] Provide pre-allocated workspace, size to be checked with qr_space
[out]	err	[optional] state return flag. On error if not requested, the code will stop

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

• la_qr.f90