debian man page for dla_gerpvgrw

dla_gerpvgrw.f(3)						      LAPACK							 dla_gerpvgrw.f(3)

NAME
       dla_gerpvgrw.f -

SYNOPSIS
   Functions/Subroutines
       DOUBLE PRECISION function dla_gerpvgrw (N, NCOLS, A, LDA, AF, LDAF)
	   DLA_GERPVGRW

Function/Subroutine Documentation
   DOUBLE PRECISION function dla_gerpvgrw (integerN, integerNCOLS, double precision, dimension( lda, * )A, integerLDA, double precision,
       dimension( ldaf, * )AF, integerLDAF)
       DLA_GERPVGRW

       Purpose:

	    DLA_GERPVGRW computes the reciprocal pivot growth factor
	    norm(A)/norm(U). The "max absolute element" 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:
	   N

		     N is INTEGER
		The number of linear equations, i.e., the order of the
		matrix A.  N >= 0.

	   NCOLS

		     NCOLS is INTEGER
		The number of columns of the matrix A. NCOLS >= 0.

	   A

		     A is DOUBLE PRECISION array, dimension (LDA,N)
		On entry, the N-by-N matrix A.

	   LDA

		     LDA is INTEGER
		The leading dimension of the array A.  LDA >= max(1,N).

	   AF

		     AF is DOUBLE PRECISION array, dimension (LDAF,N)
		The factors L and U from the factorization
		A = P*L*U as computed by DGETRF.

	   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.

       Date:
	   November 2011

       Definition at line 100 of file dla_gerpvgrw.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.1							  Sun May 26 2013						 dla_gerpvgrw.f(3)