la_lapack::ptrfs Interface Reference

PTRFS: improves the computed solution to a system of linear equations when the coefficient matrix is Hermitian positive definite and tridiagonal, and provides error bounds and backward error estimates for the solution. More...

Public Member Functions
pure subroutine	cptrfs (uplo, n, nrhs, d, e, df, ef, b, ldb, x, ldx, ferr, berr, work, rwork, info)
	la_cptrfs
pure subroutine	dptrfs (n, nrhs, d, e, df, ef, b, ldb, x, ldx, ferr, berr, work, info)
	la_dptrfs
	la_qptrfs
pure subroutine	sptrfs (n, nrhs, d, e, df, ef, b, ldb, x, ldx, ferr, berr, work, info)
	la_sptrfs
	la_wptrfs
pure subroutine	zptrfs (uplo, n, nrhs, d, e, df, ef, b, ldb, x, ldx, ferr, berr, work, rwork, info)
	la_zptrfs

Detailed Description

PTRFS: improves the computed solution to a system of linear equations when the coefficient matrix is Hermitian positive definite and tridiagonal, and provides error bounds and backward error estimates for the solution.

Member Function/Subroutine Documentation

cptrfs()

pure subroutine la_lapack::ptrfs::cptrfs	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		real(sp), dimension(*), intent(in)	d,
		complex(sp), dimension(*), intent(in)	e,
		real(sp), dimension(*), intent(in)	df,
		complex(sp), dimension(*), intent(in)	ef,
		complex(sp), dimension(ldb,*), intent(in)	b,
		integer(ilp), intent(in)	ldb,
		complex(sp), dimension(ldx,*), intent(inout)	x,
		integer(ilp), intent(in)	ldx,
		real(sp), dimension(*), intent(out)	ferr,
		real(sp), dimension(*), intent(out)	berr,
		complex(sp), dimension(*), intent(out)	work,
		real(sp), dimension(*), intent(out)	rwork,
		integer(ilp), intent(out)	info
	)

dptrfs()

pure subroutine la_lapack::ptrfs::dptrfs	(	integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		real(dp), dimension(*), intent(in)	d,
		real(dp), dimension(*), intent(in)	e,
		real(dp), dimension(*), intent(in)	df,
		real(dp), dimension(*), intent(in)	ef,
		real(dp), dimension(ldb,*), intent(in)	b,
		integer(ilp), intent(in)	ldb,
		real(dp), dimension(ldx,*), intent(inout)	x,
		integer(ilp), intent(in)	ldx,
		real(dp), dimension(*), intent(out)	ferr,
		real(dp), dimension(*), intent(out)	berr,
		real(dp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

la_cptrfs()

la_lapack::ptrfs::la_cptrfs

la_dptrfs()

la_lapack::ptrfs::la_dptrfs

la_qptrfs()

la_lapack::ptrfs::la_qptrfs

la_sptrfs()

la_lapack::ptrfs::la_sptrfs

la_wptrfs()

la_lapack::ptrfs::la_wptrfs

la_zptrfs()

la_lapack::ptrfs::la_zptrfs

sptrfs()

pure subroutine la_lapack::ptrfs::sptrfs	(	integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		real(sp), dimension(*), intent(in)	d,
		real(sp), dimension(*), intent(in)	e,
		real(sp), dimension(*), intent(in)	df,
		real(sp), dimension(*), intent(in)	ef,
		real(sp), dimension(ldb,*), intent(in)	b,
		integer(ilp), intent(in)	ldb,
		real(sp), dimension(ldx,*), intent(inout)	x,
		integer(ilp), intent(in)	ldx,
		real(sp), dimension(*), intent(out)	ferr,
		real(sp), dimension(*), intent(out)	berr,
		real(sp), dimension(*), intent(out)	work,
		integer(ilp), intent(out)	info
	)

zptrfs()

pure subroutine la_lapack::ptrfs::zptrfs	(	character, intent(in)	uplo,
		integer(ilp), intent(in)	n,
		integer(ilp), intent(in)	nrhs,
		real(dp), dimension(*), intent(in)	d,
		complex(dp), dimension(*), intent(in)	e,
		real(dp), dimension(*), intent(in)	df,
		complex(dp), dimension(*), intent(in)	ef,
		complex(dp), dimension(ldb,*), intent(in)	b,
		integer(ilp), intent(in)	ldb,
		complex(dp), dimension(ldx,*), intent(inout)	x,
		integer(ilp), intent(in)	ldx,
		real(dp), dimension(*), intent(out)	ferr,
		real(dp), dimension(*), intent(out)	berr,
		complex(dp), dimension(*), intent(out)	work,
		real(dp), dimension(*), intent(out)	rwork,
		integer(ilp), intent(out)	info
	)

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

• la_lapack.f90