TESTING/EIG/slsets.f(3) Library Functions Manual TESTING/EIG/slsets.f(3)

TESTING/EIG/slsets.f


subroutine slsets (m, p, n, a, af, lda, b, bf, ldb, c, cf, d, df, x, work, lwork, rwork, result)
SLSETS

SLSETS

Purpose:

!>
!> SLSETS tests SGGLSE - a subroutine for solving linear equality
!> constrained least square problem (LSE).
!> 

Parameters

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

P

!>          P is INTEGER
!>          The number of rows of the matrix B.  P >= 0.
!> 

N

!>          N is INTEGER
!>          The number of columns of the matrices A and B.  N >= 0.
!> 

A

!>          A is REAL array, dimension (LDA,N)
!>          The M-by-N matrix A.
!> 

AF

!>          AF is REAL array, dimension (LDA,N)
!> 

LDA

!>          LDA is INTEGER
!>          The leading dimension of the arrays A, AF, Q and R.
!>          LDA >= max(M,N).
!> 

B

!>          B is REAL array, dimension (LDB,N)
!>          The P-by-N matrix A.
!> 

BF

!>          BF is REAL array, dimension (LDB,N)
!> 

LDB

!>          LDB is INTEGER
!>          The leading dimension of the arrays B, BF, V and S.
!>          LDB >= max(P,N).
!> 

C

!>          C is REAL array, dimension( M )
!>          the vector C in the LSE problem.
!> 

CF

!>          CF is REAL array, dimension( M )
!> 

D

!>          D is REAL array, dimension( P )
!>          the vector D in the LSE problem.
!> 

DF

!>          DF is REAL array, dimension( P )
!> 

X

!>          X is REAL array, dimension( N )
!>          solution vector X in the LSE problem.
!> 

WORK

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

LWORK

!>          LWORK is INTEGER
!>          The dimension of the array WORK.
!> 

RWORK

!>          RWORK is REAL array, dimension (M)
!> 

RESULT

!>          RESULT is REAL array, dimension (2)
!>          The test ratios:
!>            RESULT(1) = norm( A*x - c )/ norm(A)*norm(X)*EPS
!>            RESULT(2) = norm( B*x - d )/ norm(B)*norm(X)*EPS
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 153 of file slsets.f.

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