syrfs Interface

public interface syrfs

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

Subroutines

public pure subroutine csyrfs(uplo, n, nrhs, a, lda, af, ldaf, ipiv, 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)			::	nrhs
complex(kind=sp),	intent(in)			::	a(lda,*)
integer(kind=ilp),	intent(in)			::	lda
complex(kind=sp),	intent(in)			::	af(ldaf,*)
integer(kind=ilp),	intent(in)			::	ldaf
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 dsyrfs(uplo, n, nrhs, a, lda, af, ldaf, ipiv, 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)			::	nrhs
real(kind=dp),	intent(in)			::	a(lda,*)
integer(kind=ilp),	intent(in)			::	lda
real(kind=dp),	intent(in)			::	af(ldaf,*)
integer(kind=ilp),	intent(in)			::	ldaf
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 ssyrfs(uplo, n, nrhs, a, lda, af, ldaf, ipiv, 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)			::	nrhs
real(kind=sp),	intent(in)			::	a(lda,*)
integer(kind=ilp),	intent(in)			::	lda
real(kind=sp),	intent(in)			::	af(ldaf,*)
integer(kind=ilp),	intent(in)			::	ldaf
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 zsyrfs(uplo, n, nrhs, a, lda, af, ldaf, ipiv, 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)			::	nrhs
complex(kind=dp),	intent(in)			::	a(lda,*)
integer(kind=ilp),	intent(in)			::	lda
complex(kind=dp),	intent(in)			::	af(ldaf,*)
integer(kind=ilp),	intent(in)			::	ldaf
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_csyrfs()

Arguments

None

public interface stdlib_dsyrfs()

Arguments

None

public interface stdlib_ssyrfs()

Arguments

None

public interface stdlib_zsyrfs()

Arguments

None