MRPT  1.9.9
polynom_solver.cpp File Reference
`#include "polynom_solver.h"`
`#include "vision-precomp.h"`
`#include <cmath>`
`#include <iostream>`
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## Macros

#define CV_PI   3.14159265358979323846

## 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. More...

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

## ◆ CV_PI

 #define CV_PI   3.14159265358979323846

Definition at line 16 of file polynom_solver.cpp.

## ◆ solve_deg2()

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

Definition at line 18 of file polynom_solver.cpp.

Referenced by solve_deg3().

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## ◆ 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 43 of file polynom_solver.cpp.

References CV_PI, R, and solve_deg2().

Referenced by solve_deg4().

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## ◆ 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 116 of file polynom_solver.cpp.

References mrpt::obs::gnss::b2, mrpt::obs::gnss::b3, R, and solve_deg3().

Referenced by mrpt::vision::pnp::p3p::solve_for_lengths().

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