cla_gerpvgrw()

real function cla_gerpvgrw	(	integer	n,
		integer	ncols,
		complex, dimension( lda, * )	a,
		integer	lda,
		complex, dimension( ldaf, * )	af,
		integer	ldaf )

CLA_GERPVGRW multiplies a square real matrix by a complex matrix.

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Purpose:

!>
!>
!> CLA_GERPVGRW computes the reciprocal pivot growth factor
!> norm(A)/norm(U). The  norm is used. If this is
!> much less than 1, the stability of the LU factorization of the
!> (equilibrated) matrix A could be poor. This also means that the
!> solution X, estimated condition numbers, and error bounds could be
!> unreliable.
!> 

Parameters

[in]	N	!> N is INTEGER !> The number of linear equations, i.e., the order of the !> matrix A. N >= 0. !>
[in]	NCOLS	!> NCOLS is INTEGER !> The number of columns of the matrix A. NCOLS >= 0. !>
[in]	A	!> A is COMPLEX array, dimension (LDA,N) !> On entry, the N-by-N matrix A. !>
[in]	LDA	!> LDA is INTEGER !> The leading dimension of the array A. LDA >= max(1,N). !>
[in]	AF	!> AF is COMPLEX array, dimension (LDAF,N) !> The factors L and U from the factorization !> A = P*L*U as computed by CGETRF. !>
[in]	LDAF	!> LDAF is INTEGER !> The leading dimension of the array AF. LDAF >= max(1,N). !>

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.