CGEBAK man page on Oracle

Man page or keyword search:  
man Server   33470 pages
apropos Keyword Search (all sections)
Output format
Oracle logo
[printable version]

cgebak.f(3)			    LAPACK			   cgebak.f(3)

NAME
       cgebak.f -

SYNOPSIS
   Functions/Subroutines
       subroutine cgebak (JOB, SIDE, N, ILO, IHI, SCALE, M, V, LDV, INFO)
	   CGEBAK

Function/Subroutine Documentation
   subroutine cgebak (characterJOB, characterSIDE, integerN, integerILO,
       integerIHI, real, dimension( * )SCALE, integerM, complex, dimension(
       ldv, * )V, integerLDV, integerINFO)
       CGEBAK

       Purpose:

	    CGEBAK forms the right or left eigenvectors of a complex general
	    matrix by backward transformation on the computed eigenvectors of the
	    balanced matrix output by CGEBAL.

       Parameters:
	   JOB

		     JOB is CHARACTER*1
		     Specifies the type of backward transformation required:
		     = 'N', do nothing, return immediately;
		     = 'P', do backward transformation for permutation only;
		     = 'S', do backward transformation for scaling only;
		     = 'B', do backward transformations for both permutation and
			    scaling.
		     JOB must be the same as the argument JOB supplied to CGEBAL.

	   SIDE

		     SIDE is CHARACTER*1
		     = 'R':  V contains right eigenvectors;
		     = 'L':  V contains left eigenvectors.

	   N

		     N is INTEGER
		     The number of rows of the matrix V.  N >= 0.

	   ILO

		     ILO is INTEGER

	   IHI

		     IHI is INTEGER
		     The integers ILO and IHI determined by CGEBAL.
		     1 <= ILO <= IHI <= N, if N > 0; ILO=1 and IHI=0, if N=0.

	   SCALE

		     SCALE is REAL array, dimension (N)
		     Details of the permutation and scaling factors, as returned
		     by CGEBAL.

	   M

		     M is INTEGER
		     The number of columns of the matrix V.  M >= 0.

	   V

		     V is COMPLEX array, dimension (LDV,M)
		     On entry, the matrix of right or left eigenvectors to be
		     transformed, as returned by CHSEIN or CTREVC.
		     On exit, V is overwritten by the transformed eigenvectors.

	   LDV

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

	   INFO

		     INFO is INTEGER
		     = 0:  successful exit
		     < 0:  if INFO = -i, the i-th argument had an illegal value.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Definition at line 131 of file cgebak.f.

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

Version 3.4.2			Tue Sep 25 2012			   cgebak.f(3)
[top]

List of man pages available for Oracle

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net