ROOT   6.08/07 Reference Guide
GenericFunction.h
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1 // @(#)root/minuit2:$Id$
2 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei 2003-2005
3
4 /**********************************************************************
5  * *
6  * Copyright (c) 2005 LCG ROOT Math team, CERN/PH-SFT *
7  * *
8  **********************************************************************/
9
10 #ifndef ROOT_Minuit2_GenericFunction
11 #define ROOT_Minuit2_GenericFunction
12
13 #include "Minuit2/MnConfig.h"
14
15 #include <vector>
16
17 namespace ROOT {
18
19  namespace Minuit2 {
20
21
22 //_____________________________________________________________________
23 /**
24
25 Class from which all the other classes, representing functions,
26 inherit. That is why it defines only one method, the operator(),
27 which allows to call the function.
28
29 @author Andras Zsenei and Lorenzo Moneta, Creation date: 23 Sep 2004
30
31 @ingroup Minuit
32
33  */
34
36
37 public:
38
39  virtual ~GenericFunction() {}
40
41
42  /**
43
44  Evaluates the function using the vector containing the input values.
45
46  @param x vector of the coordinates (for example the x coordinate for a
47  one-dimensional Gaussian)
48
49  @return the result of the evaluation of the function.
50
51  */
52
53  virtual double operator()(const std::vector<double>& x) const=0;
54
55
56
57 };
58
59  } // namespace Minuit2
60
61 } // namespace ROOT
62
63 #endif // ROOT_Minuit2_GenericFunction
This namespace contains pre-defined functions to be used in conjuction with TExecutor::Map and TExecu...
Definition: StringConv.hxx:21
Double_t x[n]
Definition: legend1.C:17
Class from which all the other classes, representing functions, inherit.
virtual double operator()(const std::vector< double > &x) const =0
Evaluates the function using the vector containing the input values.