/usr/include/opencascade/math_DirectPolynomialRoots.hxx is in libopencascade-foundation-dev 6.5.0.dfsg-2build1.
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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_DirectPolynomialRoots_HeaderFile
#define _math_DirectPolynomialRoots_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_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
#ifndef _Standard_OStream_HeaderFile
#include <Standard_OStream.hxx>
#endif
class Standard_RangeError;
class StdFail_InfiniteSolutions;
//! This class implements the calculation of all the real roots of a real <br>
//! polynomial of degree <= 4 using a direct method. Once found, <br>
//! the roots are polished using the Newton method. <br>
class math_DirectPolynomialRoots {
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);
}
//! computes all the real roots of the polynomial <br>
//! Ax4 + Bx3 + Cx2 + Dx + E using a direct method. <br>
Standard_EXPORT math_DirectPolynomialRoots(const Standard_Real A,const Standard_Real B,const Standard_Real C,const Standard_Real D,const Standard_Real E);
//! computes all the real roots of the polynomial <br>
//! Ax3 + Bx2 + Cx + D using a direct method. <br>
Standard_EXPORT math_DirectPolynomialRoots(const Standard_Real A,const Standard_Real B,const Standard_Real C,const Standard_Real D);
//! computes all the real roots of the polynomial <br>
//! Ax2 + Bx + C using a direct method. <br>
Standard_EXPORT math_DirectPolynomialRoots(const Standard_Real A,const Standard_Real B,const Standard_Real C);
//! computes the real root of the polynomial Ax + B. <br>
Standard_EXPORT math_DirectPolynomialRoots(const Standard_Real A,const Standard_Real B);
//! Returns true if the computations are successful, otherwise returns false. <br>
Standard_Boolean IsDone() const;
//! Returns true if there is an infinity of roots, otherwise returns false. <br>
Standard_Boolean InfiniteRoots() const;
//! returns the number of solutions. <br>
//! An exception is raised if there are an infinity of roots. <br>
Standard_Integer NbSolutions() const;
//! returns the value of the Nieme root. <br>
//! An exception is raised if there are an infinity of roots. <br>
//! Exception RangeError is raised if Nieme is < 1 <br>
//! or Nieme > NbSolutions. <br>
Standard_Real Value(const Standard_Integer Nieme) const;
//! Prints on the stream o information on the current state <br>
//! of the object. <br>
//! Is used to redefine the operator <<. <br>
Standard_EXPORT void Dump(Standard_OStream& o) const;
protected:
Standard_EXPORT void Solve(const Standard_Real A,const Standard_Real B,const Standard_Real C,const Standard_Real D,const Standard_Real E) ;
Standard_EXPORT void Solve(const Standard_Real A,const Standard_Real B,const Standard_Real C,const Standard_Real D) ;
Standard_EXPORT void Solve(const Standard_Real A,const Standard_Real B,const Standard_Real C) ;
Standard_EXPORT void Solve(const Standard_Real A,const Standard_Real B) ;
private:
Standard_Boolean Done;
Standard_Boolean InfiniteStatus;
Standard_Integer NbSol;
Standard_Real TheRoots[4];
};
#include <math_DirectPolynomialRoots.lxx>
// other Inline functions and methods (like "C++: function call" methods)
#endif
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