1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
// This file is generated by WOK (CPPExt).
// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to
// this header file considered to be the "object code" form of the original source.
#ifndef _math_KronrodSingleIntegration_HeaderFile
#define _math_KronrodSingleIntegration_HeaderFile
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
class StdFail_NotDone;
class math_Function;
class math_Vector;
//! This class implements the Gauss-Kronrod method of <br>
//! integral computation. <br>
class math_KronrodSingleIntegration {
public:
void* operator new(size_t,void* anAddress)
{
return anAddress;
}
void* operator new(size_t size)
{
return Standard::Allocate(size);
}
void operator delete(void *anAddress)
{
if (anAddress) Standard::Free((Standard_Address&)anAddress);
}
//! An empty constructor. <br>
Standard_EXPORT math_KronrodSingleIntegration();
//! Constructor. Takes the function, the lower and upper bound <br>
//! values, the initial number of Kronrod points <br>
Standard_EXPORT math_KronrodSingleIntegration(math_Function& theFunction,const Standard_Real theLower,const Standard_Real theUpper,const Standard_Integer theNbPnts);
//! Constructor. Takes the function, the lower and upper bound <br>
//! values, the initial number of Kronrod points, the <br>
//! tolerance value and the maximal number of iterations as <br>
//! parameters. <br>
Standard_EXPORT math_KronrodSingleIntegration(math_Function& theFunction,const Standard_Real theLower,const Standard_Real theUpper,const Standard_Integer theNbPnts,const Standard_Real theTolerance,const Standard_Integer theMaxNbIter);
//! Computation of the integral. Takes the function, <br>
//! the lower and upper bound values, the initial number <br>
//! of Kronrod points, the relative tolerance value and the <br>
//! maximal number of iterations as parameters. <br>
//! theNbPnts should be odd and greater then or equal to 3. <br>
Standard_EXPORT void Perform(math_Function& theFunction,const Standard_Real theLower,const Standard_Real theUpper,const Standard_Integer theNbPnts) ;
//! Computation of the integral. Takes the function, <br>
//! the lower and upper bound values, the initial number <br>
//! of Kronrod points, the relative tolerance value and the <br>
//! maximal number of iterations as parameters. <br>
//! theNbPnts should be odd and greater then or equal to 3. <br>
//! Note that theTolerance is relative, i.e. the criterion of <br>
//! solution reaching is: <br>
//! Abs(Kronrod - Gauss)/Abs(Kronrod) < theTolerance. <br>
//! theTolerance should be positive. <br>
Standard_EXPORT void Perform(math_Function& theFunction,const Standard_Real theLower,const Standard_Real theUpper,const Standard_Integer theNbPnts,const Standard_Real theTolerance,const Standard_Integer theMaxNbIter) ;
//! Returns Standard_True if computation is performed <br>
//! successfully. <br>
Standard_Boolean IsDone() const;
//! Returns the value of the integral. <br>
Standard_Real Value() const;
//! Returns the value of the relative error reached. <br>
Standard_Real ErrorReached() const;
//! Returns the value of the relative error reached. <br>
Standard_Real AbsolutError() const;
//! Returns the number of Kronrod points <br>
//! for which the result is computed. <br>
Standard_Integer OrderReached() const;
//! Returns the number of iterations <br>
//! that were made to compute result. <br>
Standard_Integer NbIterReached() const;
Standard_EXPORT static Standard_Boolean GKRule(math_Function& theFunction,const Standard_Real theLower,const Standard_Real theUpper,const math_Vector& theGaussP,const math_Vector& theGaussW,const math_Vector& theKronrodP,const math_Vector& theKronrodW,Standard_Real& theValue,Standard_Real& theError) ;
protected:
private:
Standard_Boolean myIsDone;
Standard_Real myValue;
Standard_Real myErrorReached;
Standard_Real myAbsolutError;
Standard_Integer myNbPntsReached;
Standard_Integer myNbIterReached;
};
#include <math_KronrodSingleIntegration.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
|
