Developer Reference

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

?gbsvxx

Uses extra precise iterative refinement to compute the solution to the system of linear equations with a banded coefficient matrix A and multiple right-hand sides

Syntax

call sgbsvxx
(
fact
,
trans
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
equed
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
rpvgrw
,
berr
,
n_err_bnds
,
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
iwork
,
info
)
call dgbsvxx
(
fact
,
trans
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
equed
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
rpvgrw
,
berr
,
n_err_bnds
,
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
iwork
,
info
)
call cgbsvxx
(
fact
,
trans
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
equed
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
rpvgrw
,
berr
,
n_err_bnds
,
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
rwork
,
info
)
call zgbsvxx
(
fact
trans
,
n
,
kl
,
ku
,
nrhs
,
ab
,
ldab
,
afb
,
ldafb
,
ipiv
,
equed
,
r
,
c
,
b
,
ldb
,
x
,
ldx
,
rcond
,
rpvgrw
,
berr
,
n_err_bnds
,
err_bnds_norm
,
err_bnds_comp
,
nparams
,
params
,
work
,
rwork
,
info
)
Include Files
  • mkl.fi
    ,
    lapack.f90
Description
The routine uses the LU factorization to compute the solution to a real or complex system of linear equations
A*X
=
B
,
A
T
*
X
=
B
, or
A