NAME

TESTING/LIN/cqrt12.f

SYNOPSIS

Functions/Subroutines

real function cqrt12 (m, n, a, lda, s, work, lwork, rwork)
CQRT12

Function/Subroutine Documentation

real function cqrt12 (integer m, integer n, complex, dimension( lda, * ) a, integer lda, real, dimension( * ) s, complex, dimension( lwork ) work, integer lwork, real, dimension( * ) rwork)

CQRT12

Purpose:



 CQRT12 computes the singular values `svlues' of the upper trapezoid


 of A(1:M,1:N) and returns the ratio


      || svlues -s ||/( ||s||*eps*max(M,N) )

Parameters



          M is INTEGER


          The number of rows of the matrix A.



          N is INTEGER


          The number of columns of the matrix A.



          A is COMPLEX array, dimension (LDA,N)


          The M-by-N matrix A. Only the upper trapezoid is referenced.

LDA



          LDA is INTEGER


          The leading dimension of the array A.



          S is REAL array, dimension (min(M,N))


          The singular values of the matrix A.

WORK



          WORK is COMPLEX array, dimension (LWORK)

LWORK



          LWORK is INTEGER


          The length of the array WORK. LWORK >= M*N + 2*min(M,N) +


          max(M,N).

RWORK



          RWORK is REAL array, dimension (4*min(M,N))

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 95 of file cqrt12.f.

Author

Generated automatically by Doxygen for LAPACK from the source code.