1. Manuals
  2. Tumbleweed
  3. lapack-man
  4. ZGET01(3)

Scroll to navigation

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zget01.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zget01.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/TESTING/LIN/zget01.f

SYNOPSIS

Functions/Subroutines


subroutine ZGET01 (m, n, a, lda, afac, ldafac, ipiv, rwork, resid)
ZGET01

Function/Subroutine Documentation

subroutine ZGET01 (integer m, integer n, complex*16, dimension( lda, * ) a, integer lda, complex*16, dimension( ldafac, * ) afac, integer ldafac, integer, dimension( * ) ipiv, double precision, dimension( * ) rwork, double precision resid)

ZGET01

Purpose:

!>
!> ZGET01 reconstructs a matrix A from its L*U factorization and
!> computes the residual
!>    norm(L*U - A) / ( N * norm(A) * EPS ),
!> where EPS is the machine epsilon.
!>

Parameters

M 

!>          M is INTEGER
!>          The number of rows of the matrix A.  M >= 0.
!>

N

!>          N is INTEGER
!>          The number of columns of the matrix A.  N >= 0.
!>

A

!>          A is COMPLEX*16 array, dimension (LDA,N)
!>          The original M x N matrix A.
!>

LDA

!>          LDA is INTEGER
!>          The leading dimension of the array A.  LDA >= max(1,M).
!>

AFAC

!>          AFAC is COMPLEX*16 array, dimension (LDAFAC,N)
!>          The factored form of the matrix A.  AFAC contains the factors
!>          L and U from the L*U factorization as computed by ZGETRF.
!>          Overwritten with the reconstructed matrix, and then with the
!>          difference L*U - A.
!>

LDAFAC

!>          LDAFAC is INTEGER
!>          The leading dimension of the array AFAC.  LDAFAC >= max(1,M).
!>

IPIV

!>          IPIV is INTEGER array, dimension (N)
!>          The pivot indices from ZGETRF.
!>

RWORK

!>          RWORK is DOUBLE PRECISION array, dimension (M)
!>

RESID

!>          RESID is DOUBLE PRECISION
!>          norm(L*U - A) / ( N * norm(A) * EPS )
!>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 106 of file zget01.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.

Version 3.12.0 LAPACK