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/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/DEPRECATED/cgelqs.f(3) Library Functions Manual /home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/DEPRECATED/cgelqs.f(3)

NAME

/home/abuild/rpmbuild/BUILD/lapack-3.12.0/SRC/DEPRECATED/cgelqs.f

SYNOPSIS

Functions/Subroutines


subroutine CGELQS (m, n, nrhs, a, lda, tau, b, ldb, work, lwork, info)
CGELQS

Function/Subroutine Documentation

subroutine CGELQS (integer m, integer n, integer nrhs, complex, dimension( lda, * ) a, integer lda, complex, dimension( * ) tau, complex, dimension( ldb, * ) b, integer ldb, complex, dimension( lwork ) work, integer lwork, integer info)

CGELQS

Purpose:

!>
!> Compute a minimum-norm solution
!>     min || A*X - B ||
!> using the LQ factorization
!>     A = L*Q
!> computed by CGELQF.
!> 

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 >= M >= 0.
!> 

NRHS

!>          NRHS is INTEGER
!>          The number of columns of B.  NRHS >= 0.
!> 

A

!>          A is COMPLEX array, dimension (LDA,N)
!>          Details of the LQ factorization of the original matrix A as
!>          returned by CGELQF.
!> 

LDA

!>          LDA is INTEGER
!>          The leading dimension of the array A.  LDA >= M.
!> 

TAU

!>          TAU is COMPLEX array, dimension (M)
!>          Details of the orthogonal matrix Q.
!> 

B

!>          B is COMPLEX array, dimension (LDB,NRHS)
!>          On entry, the m-by-nrhs right hand side matrix B.
!>          On exit, the n-by-nrhs solution matrix X.
!> 

LDB

!>          LDB is INTEGER
!>          The leading dimension of the array B. LDB >= N.
!> 

WORK

!>          WORK is COMPLEX array, dimension (LWORK)
!> 

LWORK

!>          LWORK is INTEGER
!>          The length of the array WORK.  LWORK must be at least NRHS,
!>          and should be at least NRHS*NB, where NB is the block size
!>          for this environment.
!> 

INFO

!>          INFO is INTEGER
!>          = 0: successful exit
!>          < 0: if INFO = -i, the i-th argument had an illegal value
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 119 of file cgelqs.f.

Author

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Version 3.12.0 LAPACK