ROOT   Reference Guide
MnLineSearch.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_MnLineSearch
11#define ROOT_Minuit2_MnLineSearch
12
13#include "Minuit2/MnMatrix.h"
14
15namespace ROOT {
16
17 namespace Minuit2 {
18
19
20class MnFcn;
21class MinimumParameters;
22class MnMachinePrecision;
23class MnParabolaPoint;
24
25
26
27
28/**
29
30Implements a 1-dimensional minimization along a given direction
31(i.e. quadratic interpolation) It is independent of the algorithm
32that generates the direction vector. It brackets the 1-dimensional
33Minimum and iterates to approach the real Minimum of the n-dimensional
34function.
35
36
38and Lorenzo Moneta
39
40@ingroup Minuit
41
42*/
43
44
45
46
48
49public:
50
52
54
55 MnParabolaPoint operator()(const MnFcn&, const MinimumParameters&, const MnAlgebraicVector&, double, const MnMachinePrecision&, bool debug = false) const;
56
57#ifdef USE_OTHER_LS
58 MnParabolaPoint CubicSearch(const MnFcn&, const MinimumParameters&, const MnAlgebraicVector&, double, double, const MnMachinePrecision&, bool debug = false) const;
59
60 MnParabolaPoint BrentSearch(const MnFcn&, const MinimumParameters&, const MnAlgebraicVector&, double, double, const MnMachinePrecision&, bool debug = false) const;
61#endif
62
63private:
64
65};
66
67 } // namespace Minuit2
68
69} // namespace ROOT
70
71#endif // ROOT_Minuit2_MnLineSearch
Wrapper class to FCNBase interface used internally by Minuit.
Definition: MnFcn.h:33
Implements a 1-dimensional minimization along a given direction (i.e.
Definition: MnLineSearch.h:47
MnParabolaPoint operator()(const MnFcn &, const MinimumParameters &, const MnAlgebraicVector &, double, const MnMachinePrecision &, bool debug=false) const
Perform a line search from position defined by the vector st along the direction step,...
Sets the relative floating point (double) arithmetic precision.
A point of a parabola.
tbb::task_arena is an alias of tbb::interface7::task_arena, which doesn't allow to forward declare tb...
Definition: StringConv.hxx:21