pbrfs Interface

public interface pbrfs

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

Subroutines

public pure subroutine cpbrfs(uplo, n, kd, nrhs, ab, ldab, afb, ldafb, b, ldb, x, ldx, ferr, berr, work, rwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	uplo
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kd
integer(kind=ilp),	intent(in)			::	nrhs
complex(kind=sp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
complex(kind=sp),	intent(in)			::	afb(ldafb,*)
integer(kind=ilp),	intent(in)			::	ldafb
complex(kind=sp),	intent(in)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
complex(kind=sp),	intent(inout)			::	x(ldx,*)
integer(kind=ilp),	intent(in)			::	ldx
real(kind=sp),	intent(out)			::	ferr(*)
real(kind=sp),	intent(out)			::	berr(*)
complex(kind=sp),	intent(out)			::	work(*)
real(kind=sp),	intent(out)			::	rwork(*)
integer(kind=ilp),	intent(out)			::	info

public pure subroutine dpbrfs(uplo, n, kd, nrhs, ab, ldab, afb, ldafb, b, ldb, x, ldx, ferr, berr, work, iwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	uplo
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kd
integer(kind=ilp),	intent(in)			::	nrhs
real(kind=dp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
real(kind=dp),	intent(in)			::	afb(ldafb,*)
integer(kind=ilp),	intent(in)			::	ldafb
real(kind=dp),	intent(in)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
real(kind=dp),	intent(inout)			::	x(ldx,*)
integer(kind=ilp),	intent(in)			::	ldx
real(kind=dp),	intent(out)			::	ferr(*)
real(kind=dp),	intent(out)			::	berr(*)
real(kind=dp),	intent(out)			::	work(*)
integer(kind=ilp),	intent(out)			::	iwork(*)
integer(kind=ilp),	intent(out)			::	info

public pure subroutine spbrfs(uplo, n, kd, nrhs, ab, ldab, afb, ldafb, b, ldb, x, ldx, ferr, berr, work, iwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	uplo
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kd
integer(kind=ilp),	intent(in)			::	nrhs
real(kind=sp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
real(kind=sp),	intent(in)			::	afb(ldafb,*)
integer(kind=ilp),	intent(in)			::	ldafb
real(kind=sp),	intent(in)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
real(kind=sp),	intent(inout)			::	x(ldx,*)
integer(kind=ilp),	intent(in)			::	ldx
real(kind=sp),	intent(out)			::	ferr(*)
real(kind=sp),	intent(out)			::	berr(*)
real(kind=sp),	intent(out)			::	work(*)
integer(kind=ilp),	intent(out)			::	iwork(*)
integer(kind=ilp),	intent(out)			::	info

public pure subroutine zpbrfs(uplo, n, kd, nrhs, ab, ldab, afb, ldafb, b, ldb, x, ldx, ferr, berr, work, rwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	uplo
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kd
integer(kind=ilp),	intent(in)			::	nrhs
complex(kind=dp),	intent(in)			::	ab(ldab,*)
integer(kind=ilp),	intent(in)			::	ldab
complex(kind=dp),	intent(in)			::	afb(ldafb,*)
integer(kind=ilp),	intent(in)			::	ldafb
complex(kind=dp),	intent(in)			::	b(ldb,*)
integer(kind=ilp),	intent(in)			::	ldb
complex(kind=dp),	intent(inout)			::	x(ldx,*)
integer(kind=ilp),	intent(in)			::	ldx
real(kind=dp),	intent(out)			::	ferr(*)
real(kind=dp),	intent(out)			::	berr(*)
complex(kind=dp),	intent(out)			::	work(*)
real(kind=dp),	intent(out)			::	rwork(*)
integer(kind=ilp),	intent(out)			::	info

Module Procedures

public interface stdlib_cpbrfs()

Arguments

None

public interface stdlib_dpbrfs()

Arguments

None

public interface stdlib_spbrfs()

Arguments

None

public interface stdlib_zpbrfs()

Arguments

None