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GSLRootHelper.cxx
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1 // @(#)root/mathmore:$Id$
2 // Authors: L. Moneta, A. Zsenei 08/2005
3 
4  /**********************************************************************
5  * *
6  * Copyright (c) 2004 ROOT Foundation, CERN/PH-SFT *
7  * *
8  * This library is free software; you can redistribute it and/or *
9  * modify it under the terms of the GNU General Public License *
10  * as published by the Free Software Foundation; either version 2 *
11  * of the License, or (at your option) any later version. *
12  * *
13  * This library is distributed in the hope that it will be useful, *
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
16  * General Public License for more details. *
17  * *
18  * You should have received a copy of the GNU General Public License *
19  * along with this library (see file COPYING); if not, write *
20  * to the Free Software Foundation, Inc., 59 Temple Place, Suite *
21  * 330, Boston, MA 02111-1307 USA, or contact the author. *
22  * *
23  **********************************************************************/
24 
25 // Implementation file for class GSLRootHelper
26 //
27 // Created by: moneta at Sun Nov 14 21:34:15 2004
28 //
29 // Last update: Sun Nov 14 21:34:15 2004
30 //
31 
32 #include "Math/GSLRootHelper.h"
33 
34 #include "gsl/gsl_roots.h"
35 
36 namespace ROOT {
37 namespace Math {
38 
39  namespace GSLRootHelper {
40 
41 
42  int TestInterval(double xlow, double xup, double epsAbs, double epsRel) {
43 
44  return gsl_root_test_interval( xlow, xup, epsAbs, epsRel);
45  }
46 
47  int TestDelta(double x1, double x0, double epsAbs, double epsRel) {
48  // be careful is inverted with respect to GSL (don't know why )
49  return gsl_root_test_delta( x1, x0, epsRel, epsAbs);
50  }
51 
52  int TestResidual(double f, double epsAbs) {
53 
54  return gsl_root_test_residual( f, epsAbs);
55  }
56 
57  }
58 
59 } // namespace Math
60 } // namespace ROOT
This namespace contains pre-defined functions to be used in conjuction with TExecutor::Map and TExecu...
Definition: StringConv.hxx:21
int TestInterval(double xlow, double xup, double epsAbs, double epsRel)
int TestResidual(double f, double epsAbs)
static const double x1[5]
double f(double x)
int TestDelta(double x1, double x0, double epsAbs, double epsRel)
Namespace for new Math classes and functions.