OCCT

// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

// #ifndef OCCT_DEBUG
#define No_Standard_RangeError
#define No_Standard_OutOfRange
#define No_Standard_DimensionError

// #endif

#include <math_Jacobi.hxx>
#include <math_Matrix.hxx>
#include <math_NotSquare.hxx>
#include <math_Recipes.hxx>

math_Jacobi::math_Jacobi(const math_Matrix& A)
    : Done(false),
      AA(1, A.RowNumber(), 1, A.RowNumber()),
      NbRotations(0),
      EigenValues(1, A.RowNumber()),
      EigenVectors(1, A.RowNumber(), 1, A.RowNumber())
{

  math_NotSquare_Raise_if(A.RowNumber() != A.ColNumber(), " ");

  AA        = A;
  int Error = Jacobi(AA, EigenValues, EigenVectors, NbRotations);
  Done      = Error == 0;
}

void math_Jacobi::Dump(Standard_OStream& o) const
{

  o << "math_Jacobi ";
  if (Done)
  {
    o << " Status = Done \n";
    o << " The eigenvalues vector is: " << EigenValues << '\n';
  }
  else
  {
    o << "Status = not Done \n";
  }
}