la_lapack::sysv Interface Reference

SYSV: computes the solution to a complex system of linear equations A * X = B, where A is an N-by-N symmetric matrix and X and B are N-by-NRHS matrices. The diagonal pivoting method is used to factor A as A = U * D * U**T, if UPLO = 'U', or A = L * D * L**T, if UPLO = 'L', where U (or L) is a product of permutation and unit upper (lower) triangular matrices, and D is symmetric and block diagonal with 1-by-1 and 2-by-2 diagonal blocks. The factored form of A is then used to solve the system of equations A * X = B. More...

Public Member Functions
pure subroutine	csysv (uplo, n, nrhs, a, lda, ipiv, b, ldb, work, lwork, info)
	la_csysv
pure subroutine	dsysv (uplo, n, nrhs, a, lda, ipiv, b, ldb, work, lwork, info)
	la_dsysv
	la_qsysv
pure subroutine	ssysv (uplo, n, nrhs, a, lda, ipiv, b, ldb, work, lwork, info)
	la_ssysv
	la_wsysv
pure subroutine	zsysv (uplo, n, nrhs, a, lda, ipiv, b, ldb, work, lwork, info)
	la_zsysv

Detailed Description

SYSV: computes the solution to a complex system of linear equations A * X = B, where A is an N-by-N symmetric matrix and X and B are N-by-NRHS matrices. The diagonal pivoting method is used to factor A as A = U * D * U**T, if UPLO = 'U', or A = L * D * L**T, if UPLO = 'L', where U (or L) is a product of permutation and unit upper (lower) triangular matrices, and D is symmetric and block diagonal with 1-by-1 and 2-by-2 diagonal blocks. The factored form of A is then used to solve the system of equations A * X = B.

Member Function/Subroutine Documentation

csysv()

pure subroutine la_lapack::sysv::csysv	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		complex(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		complex(sp), dimension(ldb,*), intent(inout)	b,
		integer(ilp), intent(in)	ldb,
		complex(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

dsysv()

pure subroutine la_lapack::sysv::dsysv	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		real(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		real(dp), dimension(ldb,*), intent(inout)	b,
		integer(ilp), intent(in)	ldb,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

la_csysv()

la_lapack::sysv::la_csysv

la_dsysv()

la_lapack::sysv::la_dsysv

la_qsysv()

la_lapack::sysv::la_qsysv

la_ssysv()

la_lapack::sysv::la_ssysv

la_wsysv()

la_lapack::sysv::la_wsysv

la_zsysv()

la_lapack::sysv::la_zsysv

ssysv()

pure subroutine la_lapack::sysv::ssysv	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		real(sp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		real(sp), dimension(ldb,*), intent(inout)	b,
		integer(ilp), intent(in)	ldb,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

zsysv()

pure subroutine la_lapack::sysv::zsysv	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		complex(dp), dimension(lda,*), intent(inout)	a,
		integer(ilp), intent(in)	lda,
		integer(ilp), dimension(*), intent(out)	ipiv,
		complex(dp), dimension(ldb,*), intent(inout)	b,
		integer(ilp), intent(in)	ldb,
		complex(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(in)	lwork,
		integer(ilp), intent(out)	info
	)

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

• la_lapack.f90