view liboctave/SparseCmplxCHOL.h @ 8987:542015fada9e

Eliminate the workspace in sparse transpose. The output's cidx (column start offset array) can serve as the workspace, so the routines operate in the space of their output.
author Jason Riedy <jason@acm.org>
date Mon, 16 Mar 2009 17:03:07 -0400
parents a1dbe9d80eee
children 4c0cdbe0acca
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/*

Copyright (C) 2005, 2006, 2007 David Bateman
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Andy Adler

This file is part of Octave.

Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.

Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#if !defined (octave_sparse_complex_CHOL_h)
#define octave_sparse_complex_CHOL_h 1

#include "sparse-base-chol.h"
#include "dSparse.h"
#include "CSparse.h"

class
OCTAVE_API
SparseComplexCHOL : 
  public sparse_base_chol <SparseComplexMatrix, Complex, SparseMatrix>
{
public:

  SparseComplexCHOL (void) : 
    sparse_base_chol<SparseComplexMatrix, Complex, SparseMatrix> () { }

  SparseComplexCHOL (const SparseComplexMatrix& a, bool natural = true) : 
    sparse_base_chol<SparseComplexMatrix, Complex, SparseMatrix> 
  (a, natural) { }

  SparseComplexCHOL (const SparseComplexMatrix& a, octave_idx_type& info, 
		     bool natural = true) :
    sparse_base_chol<SparseComplexMatrix, Complex, SparseMatrix> 
  (a, info, natural) { }

  SparseComplexCHOL (const SparseComplexCHOL& a) : 
    sparse_base_chol<SparseComplexMatrix, Complex, SparseMatrix> (a) { }

  ~SparseComplexCHOL (void) { }

  SparseComplexCHOL& operator = (const SparseComplexCHOL& a)
    {
      if (this != &a)
	sparse_base_chol <SparseComplexMatrix, Complex, SparseMatrix> ::
	  operator = (a);

      return *this;
    }

  SparseComplexMatrix chol_matrix (void) const { return R(); }

  SparseComplexMatrix L (void) const 
    { return sparse_base_chol<SparseComplexMatrix, Complex, 
	SparseMatrix>:: L (); }

  SparseComplexMatrix R (void) const 
    { return sparse_base_chol<SparseComplexMatrix, Complex,
	SparseMatrix>:: R (); }

  octave_idx_type P (void) const 
   { return sparse_base_chol<SparseComplexMatrix, Complex, 
        SparseMatrix>:: P (); }

  ColumnVector perm (void) const 
    { return sparse_base_chol<SparseComplexMatrix, Complex, 
	SparseMatrix>:: perm (); }

  SparseMatrix Q (void) const 
    { return sparse_base_chol<SparseComplexMatrix, Complex, 
	SparseMatrix>:: Q (); }

  double rcond (void) const
    { return sparse_base_chol<SparseComplexMatrix, Complex, 
	SparseMatrix>:: rcond (); }

  // Compute the inverse of a matrix using the Cholesky factorization.
  SparseComplexMatrix inverse (void) const
    { return sparse_base_chol<SparseComplexMatrix, Complex, 
	SparseMatrix>:: inverse (); }
};

SparseComplexMatrix OCTAVE_API chol2inv (const SparseComplexMatrix& r);

#endif

/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/