/usr/include/opencascade/math_FunctionRoots.hxx is in libopencascade-foundation-dev 6.5.0.dfsg-2build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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_FunctionRoots_HeaderFile
#define _math_FunctionRoots_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 _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_RangeError;
class StdFail_NotDone;
class math_FunctionWithDerivative;
//! This class implements an algorithm which finds all the real roots of <br>
//! a function with derivative within a given range. <br>
//! Knowledge of the derivative is required. <br>
class math_FunctionRoots {
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);
}
//! Calculates all the real roots of a function F-K within the range <br>
//! A..B. whithout conditions on A and B <br>
//! A solution X is found when <br>
//! abs(Xi - Xi-1) <= Epsx and abs(F(Xi)-K) <= EpsF. <br>
//! The function is considered as null between A and B if <br>
//! abs(F-K) <= EpsNull within this range. <br>
Standard_EXPORT math_FunctionRoots(math_FunctionWithDerivative& F,const Standard_Real A,const Standard_Real B,const Standard_Integer NbSample,const Standard_Real EpsX = 0.0,const Standard_Real EpsF = 0.0,const Standard_Real EpsNull = 0.0,const Standard_Real K = 0.0);
//! Returns true if the computations are successful, otherwise returns false. <br>
Standard_Boolean IsDone() const;
//! returns true if the function is considered as null between A and B. <br>
//! Exceptions <br>
//! StdFail_NotDone if the algorithm fails (and IsDone returns false). <br>
Standard_Boolean IsAllNull() const;
//! Returns the number of solutions found. <br>
//! Exceptions <br>
//! StdFail_NotDone if the algorithm fails (and IsDone returns false). <br>
Standard_Integer NbSolutions() const;
//! Returns the Nth value of the root of function F. <br>
//! Exceptions <br>
//! StdFail_NotDone if the algorithm fails (and IsDone returns false). <br>
Standard_Real Value(const Standard_Integer Nieme) const;
//! returns the StateNumber of the Nieme root. <br>
//! Exception RangeError is raised if Nieme is < 1 <br>
//! or Nieme > NbSolutions. <br>
Standard_Integer StateNumber(const Standard_Integer Nieme) 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;
Standard_Boolean AllNull;
TColStd_SequenceOfReal Sol;
TColStd_SequenceOfInteger NbStateSol;
};
#include <math_FunctionRoots.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
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