HESV_AA: computes the solution to a complex system of linear equations A * X = B, where A is an N-by-N Hermitian matrix and X and B are N-by-NRHS matrices. Aasen's algorithm is used to factor A as A = U**H * T * U, if UPLO = 'U', or A = L * T * L**H, if UPLO = 'L', where U (or L) is a product of permutation and unit upper (lower) triangular matrices, and T is Hermitian and tridiagonal. The factored form of A is then used to solve the system of equations A * X = B. More...

Public Member Functions
pure subroutine	chesv_aa (uplo, n, nrhs, a, lda, ipiv, b, ldb, work, lwork, info)

	la_chesv_aa

	la_whesv_aa

pure subroutine	zhesv_aa (uplo, n, nrhs, a, lda, ipiv, b, ldb, work, lwork, info)

	la_zhesv_aa

Detailed Description

HESV_AA: computes the solution to a complex system of linear equations A * X = B, where A is an N-by-N Hermitian matrix and X and B are N-by-NRHS matrices. Aasen's algorithm is used to factor A as A = U**H * T * U, if UPLO = 'U', or A = L * T * L**H, if UPLO = 'L', where U (or L) is a product of permutation and unit upper (lower) triangular matrices, and T is Hermitian and tridiagonal. The factored form of A is then used to solve the system of equations A * X = B.

Member Function/Subroutine Documentation

◆ chesv_aa()

pure subroutine la_lapack::hesv_aa::chesv_aa	(	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 )

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◆ la_chesv_aa()

la_lapack::hesv_aa::la_chesv_aa

◆ la_whesv_aa()

la_lapack::hesv_aa::la_whesv_aa

◆ la_zhesv_aa()

la_lapack::hesv_aa::la_zhesv_aa

◆ zhesv_aa()

pure subroutine la_lapack::hesv_aa::zhesv_aa	(	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 )