gbrfs Interface

public interface gbrfs

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

Subroutines

public pure subroutine cgbrfs(trans, n, kl, ku, nrhs, ab, ldab, afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr, work, rwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
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
integer(kind=ilp),	intent(in)			::	ipiv(*)
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 dgbrfs(trans, n, kl, ku, nrhs, ab, ldab, afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr, work, iwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
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
integer(kind=ilp),	intent(in)			::	ipiv(*)
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 sgbrfs(trans, n, kl, ku, nrhs, ab, ldab, afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr, work, iwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
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
integer(kind=ilp),	intent(in)			::	ipiv(*)
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 zgbrfs(trans, n, kl, ku, nrhs, ab, ldab, afb, ldafb, ipiv, b, ldb, x, ldx, ferr, berr, work, rwork, info)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=1),	intent(in)			::	trans
integer(kind=ilp),	intent(in)			::	n
integer(kind=ilp),	intent(in)			::	kl
integer(kind=ilp),	intent(in)			::	ku
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
integer(kind=ilp),	intent(in)			::	ipiv(*)
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_cgbrfs()

Arguments

None

public interface stdlib_dgbrfs()

Arguments

None

public interface stdlib_sgbrfs()

Arguments

None

public interface stdlib_zgbrfs()

Arguments

None