include/opencascade/math_BrentMinimum.lxx

0001 // Copyright (c) 1997-1999 Matra Datavision
0002 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0003 //
0004 // This file is part of Open CASCADE Technology software library.
0005 //
0006 // This library is free software; you can redistribute it and/or modify it under
0007 // the terms of the GNU Lesser General Public License version 2.1 as published
0008 // by the Free Software Foundation, with special exception defined in the file
0009 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0010 // distribution for complete text of the license and disclaimer of any warranty.
0011 //
0012 // Alternatively, this file may be used under the terms of Open CASCADE
0013 // commercial license or contractual agreement.
0014
0015 #include <StdFail_NotDone.hxx>
0016
0017 inline Standard_Boolean math_BrentMinimum::IsSolutionReached(math_Function&)
0018 {
0019   const Standard_Real TwoTol = 2.0 * (XTol * fabs(x) + EPSZ);
0020   return (x <= (TwoTol + a)) && (x >= (b - TwoTol));
0021 }
0022
0023
0024 inline Standard_Boolean math_BrentMinimum::IsDone() const
0025 {
0026   return Done;
0027 }
0028
0029
0030 inline Standard_OStream& operator<< (Standard_OStream& o,
0031                                      const math_BrentMinimum& Br)
0032 {
0033   Br.Dump(o);
0034   return o;
0035 }
0036
0037
0038 inline  Standard_Real math_BrentMinimum::Location() const{
0039   StdFail_NotDone_Raise_if(!Done, " ");
0040   return x;
0041 }
0042
0043
0044 inline  Standard_Real math_BrentMinimum::Minimum() const{
0045   StdFail_NotDone_Raise_if(!Done, " ");
0046   return fx;
0047 }
0048
0049
0050 inline  Standard_Integer math_BrentMinimum::NbIterations() const{
0051   StdFail_NotDone_Raise_if(!Done, " ");
0052   return iter;
0053 }