zrzt01.f3

!>
!> ZRZT01 returns
!>      || A - R*Q || / ( M * eps * ||A|| )
!> for an upper trapezoidal A that was factored with ZTZRZF.
!> 

M

!>          M is INTEGER
!>          The number of rows of the matrices A and AF.
!> 

N

!>          N is INTEGER
!>          The number of columns of the matrices A and AF.
!> 

A

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

AF

!>          AF is COMPLEX*16 array, dimension (LDA,N)
!>          The output of ZTZRZF for input matrix A.
!>          The lower triangle is not referenced.
!> 

LDA

!>          LDA is INTEGER
!>          The leading dimension of the arrays A and AF.
!> 

TAU

!>          TAU is COMPLEX*16 array, dimension (M)
!>          Details of the  Householder transformations as returned by
!>          ZTZRZF.
!> 

WORK

!>          WORK is COMPLEX*16 array, dimension (LWORK)
!> 

LWORK

!>          LWORK is INTEGER
!>          The length of the array WORK.  LWORK >= m*n + m.
!> 

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