×
UNIX.COM Login
Username:
Password:  
Show Password






👤


CentOS 7.0 - man page for sla_gerpvgrw (centos section 3)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


sla_gerpvgrw.f(3)			      LAPACK				sla_gerpvgrw.f(3)

NAME
       sla_gerpvgrw.f -

SYNOPSIS
   Functions/Subroutines
       REAL function sla_gerpvgrw (N, NCOLS, A, LDA, AF, LDAF)
	   SLA_GERPVGRW

Function/Subroutine Documentation
   REAL function sla_gerpvgrw (integerN, integerNCOLS, real, dimension( lda, * )A, integerLDA,
       real, dimension( ldaf, * )AF, integerLDAF)
       SLA_GERPVGRW

       Purpose:

	    SLA_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 REAL 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 REAL array, dimension (LDAF,N)
		The factors L and U from the factorization
		A = P*L*U as computed by SGETRF.

	   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 98 of file sla_gerpvgrw.f.

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

Version 3.4.2				 Tue Sep 25 2012			sla_gerpvgrw.f(3)
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 09:11 PM.

Unix & Linux Forums Content Copyright©1993-2018. All Rights Reserved.