/usr/include/oce/math_FunctionAllRoots.hxx is in liboce-foundation-dev 0.15-4.
This file is owned by root:root, with mode 0o644.
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// 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_FunctionAllRoots_HeaderFile
#define _math_FunctionAllRoots_HeaderFile
#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_DefineAlloc_HeaderFile
#include <Standard_DefineAlloc.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _TColStd_SequenceOfReal_HeaderFile
#include <TColStd_SequenceOfReal.hxx>
#endif
#ifndef _TColStd_SequenceOfInteger_HeaderFile
#include <TColStd_SequenceOfInteger.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _Standard_OStream_HeaderFile
#include <Standard_OStream.hxx>
#endif
class Standard_OutOfRange;
class StdFail_NotDone;
class Standard_NumericError;
class math_FunctionWithDerivative;
class math_FunctionSample;
//! This algorithm uses a sample of the function to find <br>
//! all intervals on which the function is null, and afterwards <br>
//! uses the FunctionRoots algorithm to find the points <br>
//! where the function is null outside the "null intervals". <br>
//! Knowledge of the derivative is required. <br>
class math_FunctionAllRoots {
public:
DEFINE_STANDARD_ALLOC
//! The algorithm uses the sample to find intervals on which <br>
//! the function is null. An interval is found if, for at least <br>
//! two consecutive points of the sample, Ui and Ui+1, we get <br>
//! |F(Ui)|<=EpsNul and |F(Ui+1)|<=EpsNul. The real bounds of <br>
//! an interval are computed with the FunctionRoots. <br>
//! algorithm. <br>
//! Between two intervals, the roots of the function F are <br>
//! calculated using the FunctionRoots algorithm. <br>
Standard_EXPORT math_FunctionAllRoots(math_FunctionWithDerivative& F,const math_FunctionSample& S,const Standard_Real EpsX,const Standard_Real EpsF,const Standard_Real EpsNul);
//! Returns True if the computation has been done successfully. <br>
Standard_Boolean IsDone() const;
//! Returns the number of intervals on which the function <br>
//! is Null. <br>
//! An exception is raised if IsDone returns False. <br>
Standard_Integer NbIntervals() const;
//! Returns the interval of parameter of range Index. <br>
//! An exception is raised if IsDone returns False; <br>
//! An exception is raised if Index<=0 or Index >Nbintervals. <br>
void GetInterval(const Standard_Integer Index,Standard_Real& A,Standard_Real& B) const;
//! returns the State Number associated to the interval Index. <br>
//! An exception is raised if IsDone returns False; <br>
//! An exception is raised if Index<=0 or Index >Nbintervals. <br>
void GetIntervalState(const Standard_Integer Index,Standard_Integer& IFirst,Standard_Integer& ILast) const;
//! returns the number of points where the function is Null. <br>
//! An exception is raised if IsDone returns False. <br>
Standard_Integer NbPoints() const;
//! Returns the parameter of the point of range Index. <br>
//! An exception is raised if IsDone returns False; <br>
//! An exception is raised if Index<=0 or Index >NbPoints. <br>
Standard_Real GetPoint(const Standard_Integer Index) const;
//! returns the State Number associated to the point Index. <br>
//! An exception is raised if IsDone returns False; <br>
//! An exception is raised if Index<=0 or Index >Nbintervals. <br>
Standard_Integer GetPointState(const Standard_Integer Index) const;
//! Prints on the stream o information on the current state <br>
//! of the object. <br>
Standard_EXPORT void Dump(Standard_OStream& o) const;
protected:
private:
Standard_Boolean done;
TColStd_SequenceOfReal pdeb;
TColStd_SequenceOfReal pfin;
TColStd_SequenceOfReal piso;
TColStd_SequenceOfInteger ideb;
TColStd_SequenceOfInteger ifin;
TColStd_SequenceOfInteger iiso;
};
#include <math_FunctionAllRoots.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
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