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Public Member Functions | Protected Member Functions
math_DirectPolynomialRoots Class Reference

This class implements the calculation of all the real roots of a real
polynomial of degree <= 4 using a direct method. Once found,
the roots are polished using the Newton method.

#include <math_DirectPolynomialRoots.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC 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
Ax4 + Bx3 + Cx2 + Dx + E using a direct method.

 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
Ax3 + Bx2 + Cx + D using a direct method.

 math_DirectPolynomialRoots (const Standard_Real A, const Standard_Real B, const Standard_Real C)
 computes all the real roots of the polynomial
Ax2 + Bx + C using a direct method.

 math_DirectPolynomialRoots (const Standard_Real A, const Standard_Real B)
 computes the real root of the polynomial Ax + B.

Standard_Boolean IsDone () const
 Returns true if the computations are successful, otherwise returns false.

Standard_Boolean InfiniteRoots () const
 Returns true if there is an infinity of roots, otherwise returns false.

Standard_Integer NbSolutions () const
 returns the number of solutions.
An exception is raised if there are an infinity of roots.

Standard_Real Value (const Standard_Integer Nieme) const
 returns the value of the Nieme root.
An exception is raised if there are an infinity of roots.
Exception RangeError is raised if Nieme is < 1
or Nieme > NbSolutions.

void Dump (Standard_OStream &o) const
 Prints on the stream o information on the current state
of the object.
Is used to redefine the operator <<.

Protected Member Functions

void Solve (const Standard_Real A, const Standard_Real B, const Standard_Real C, const Standard_Real D, const Standard_Real E)
void Solve (const Standard_Real A, const Standard_Real B, const Standard_Real C, const Standard_Real D)
void Solve (const Standard_Real A, const Standard_Real B, const Standard_Real C)
void Solve (const Standard_Real A, const Standard_Real B)

Constructor & Destructor Documentation


Member Function Documentation


The documentation for this class was generated from the following file: