ROOT   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
17namespace ROOT {
18
19 namespace Minuit2 {
20
21
22//_____________________________________________________________________
23/**
24
25Class from which all the other classes, representing functions,
26inherit. That is why it defines only one method, the operator(),
27which 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
37public:
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
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.
Double_t x[n]
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