Developer Reference

  • 2020.2
  • 07/15/2020
  • Public Content
Contents

?gbrfsx

Uses extra precise iterative refinement to improve the solution to the system of linear equations with a banded coefficient matrix A and provides error bounds and backward error estimates.

Syntax

call sgbrfsx
(
trans
,
equed
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
berr
,
n_err_bnds
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
iwork
,
info
)
call dgbrfsx
(
trans
,
equed
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
berr
,
n_err_bnds
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
iwork
,
info
)
call cgbrfsx
(
trans
,
equed
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
berr
,
n_err_bnds
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
rwork
,
info
)
call zgbrfsx
(
trans
,
equed
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
berr
,
n_err_bnds
err_bnds_norm
,
err_bnds_comp
,
nparams
params