Developer Reference

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

?gtrfs

Refines the solution of a system of linear equations with a tridiagonal coefficient matrix and estimates its error.

Syntax

call sgtrfs
(
trans
,
n
,
nrhs
,
dl
,
d
,
du
,
dlf
,
df
,
duf
,
du2
,
ipiv
,
b
,
ldb
,
x
,
ldx
,
ferr
,
berr
,
work
,
iwork
,
info
)
call dgtrfs
(
trans
,
n
,
nrhs
,
dl
,
d
,
du
,
dlf
,
df
,
duf
,
du2
,
ipiv
,
b
,
ldb
,
x
,
ldx
,
ferr
,
berr
,
work
,
iwork
,
info
)
call cgtrfs
(
trans
,
n
,
nrhs
,
dl
,
d
,
du
,
dlf
,
df
,
duf
,
du2
,
ipiv
,
b
,
ldb
,
x
,
ldx
,
ferr
,
berr
,
work
,
rwork
,
info
)
call zgtrfs
(
trans
,
n
,
nrhs
,
dl
,
d
,
du
,
dlf
,
df
,
duf
,
du2
,
ipiv
,
b
,
ldb
,
x
,
ldx
,
ferr
,
berr
,
work
,
rwork
,
info
)
call gtrfs
(
dl
,
d
,
du
,
dlf
,
df
,
duf
,
du2
,
ipiv
,
b
,
x
[
,
trans
]
[
,
ferr
]
[
,
berr
]
[
,
info
]
)
Include Files
  • mkl.fi
    ,