polynom_solver.cpp File Reference

Functions to calculate roots of polynomials (Author: Mustafa Ozuysal, modified by Vincent Lepetit) More...

#include <math.h>
#include <iostream>
#include "polynom_solver.h"
#include <general/general.h>

Include dependency graph for polynom_solver.cpp:

Go to the source code of this file.

Functions
int	solve_deg2 (double a, double b, double c, double &x1, double &x2)
int	solve_deg3 (double a, double b, double c, double d, double &x0, double &x1, double &x2)
	Reference : Eric W.
int	solve_deg4 (double a, double b, double c, double d, double e, double &x0, double &x1, double &x2, double &x3)
	Reference : Eric W.

Detailed Description

Functions to calculate roots of polynomials (Author: Mustafa Ozuysal, modified by Vincent Lepetit)

Definition in file polynom_solver.cpp.

Function Documentation

int solve_deg2	(	double	a,
		double	b,
		double	c,
		double &	x1,
		double &	x2
	)

Definition at line 32 of file polynom_solver.cpp.

Referenced by ls_minimizer2::minimize_using_dogleg_from(), and solve_deg3().

int solve_deg3	(	double	a,
		double	b,
		double	c,
		double	d,
		double &	x0,
		double &	x1,
		double &	x2
	)

Reference : Eric W.

Weisstein. "Cubic Equation." From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/CubicEquation.html

Returns

Number of real roots found.

Definition at line 57 of file polynom_solver.cpp.

References M_PI, and solve_deg2().

Referenced by solve_deg4().

int solve_deg4	(	double	a,
		double	b,
		double	c,
		double	d,
		double	e,
		double &	x0,
		double &	x1,
		double &	x2,
		double &	x3
	)

Reference : Eric W.

Weisstein. "Quartic Equation." From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/QuarticEquation.html

Returns

Number of real roots found.

Definition at line 127 of file polynom_solver.cpp.

References E, and solve_deg3().