nwtc_lapack::lapack_posv Interface Reference

Compute the solution to system of linear equations A * X = B for PO matrices. More...

Public Member Functions
subroutine	lapack_dposv (UPLO, N, NRHS, A, B, ErrStat, ErrMsg)
	Compute the solution to system of linear equations A * X = B for PO (positive-definite) matrices. More...
subroutine	lapack_sposv (UPLO, N, NRHS, A, B, ErrStat, ErrMsg)
	Compute the solution to system of linear equations A * X = B for PO (positive-definite) matrices. More...

Detailed Description

Compute the solution to system of linear equations A * X = B for PO matrices.

Member Function/Subroutine Documentation

lapack_dposv()

subroutine nwtc_lapack::lapack_posv::lapack_dposv	(	character(1), intent(in)	UPLO,
		integer, intent(in)	N,
		integer, intent(in)	NRHS,
		real(r8ki), dimension( :, : ), intent(inout)	A,
		real(r8ki), dimension( :, : ), intent(inout)	B,
		integer(intki), intent(out)	ErrStat,
		character(*), intent(out)	ErrMsg
	)

Compute the solution to system of linear equations A * X = B for PO (positive-definite) matrices.

use LAPACK_POSV (nwtc_lapack::lapack_posv) instead of this specific function.

Parameters

[in]	n	The number of linear equations, i.e., the order of the matrix A. N >= 0.
[in]	nrhs	The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
[in,out]	a	On entry, the symmetric matrix A. If UPLO = 'U', the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if INFO = 0, the factor U or L from the Cholesky factorization A = U**T*U or A = L*L**T.
[in,out]	b	On entry, the N-by-NRHS matrix of right hand side matrix B. On exit, if INFO = 0, the N-by-NRHS solution matrix X.
[out]	errstat	Error level
[out]	errmsg	Message describing error
[in]	uplo	'U': Upper triangle of A is stored; 'L': Lower triangle of A is stored.

lapack_sposv()

subroutine nwtc_lapack::lapack_posv::lapack_sposv	(	character(1), intent(in)	UPLO,
		integer, intent(in)	N,
		integer, intent(in)	NRHS,
		real(siki), dimension( :, : ), intent(inout)	A,
		real(siki), dimension( :, : ), intent(inout)	B,
		integer(intki), intent(out)	ErrStat,
		character(*), intent(out)	ErrMsg
	)

Compute the solution to system of linear equations A * X = B for PO (positive-definite) matrices.

use LAPACK_POSV (nwtc_lapack::lapack_posv) instead of this specific function.

Parameters

[in]	n	The number of linear equations, i.e., the order of the matrix A. N >= 0.
[in]	nrhs	The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
[in,out]	a	On entry, the symmetric matrix A. If UPLO = 'U', the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if INFO = 0, the factor U or L from the Cholesky factorization A = U**T*U or A = L*L**T.
[in,out]	b	On entry, the N-by-NRHS matrix of right hand side matrix B. On exit, if INFO = 0, the N-by-NRHS solution matrix X.
[out]	errstat	Error level
[out]	errmsg	Message describing error
[in]	uplo	'U': Upper triangle of A is stored; 'L': Lower triangle of A is stored.

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

• NWTC_LAPACK.f90