Eclipse SUMO - Simulation of Urban MObility
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Static Public Member Functions
PolySolver Class Reference

Utility functions for solving quadratic and cubic equations in real domain. More...

#include <PolySolver.h>

Static Public Member Functions

static std::tuple< int, double, double, double > cubicSolve (double a, double b, double c, double d)
 Solver of cubic equation ax^3 + bx^2 + cx + d = 0.
 
static std::tuple< int, double, double > quadraticSolve (double a, double b, double c)
 Solver of quadratic equation ax^2 + bx + c = 0.
 

Detailed Description

Utility functions for solving quadratic and cubic equations in real domain.

Definition at line 32 of file PolySolver.h.

Member Function Documentation

◆ cubicSolve()

std::tuple< int, double, double, double > PolySolver::cubicSolve ( double  a,
double  b,
double  c,
double  d 
)
static

Solver of cubic equation ax^3 + bx^2 + cx + d = 0.

Returns only real-valued roots.

Parameters
[in]aThe coefficient of the cubic term x^3
[in]bThe coefficient of the quadratic term x^2
[in]cThe coefficient of the linear term x
[in]dThe coefficient of the constant term
Returns
The number of real roots and these real roots

Definition at line 74 of file PolySolver.cpp.

References M_PI, and quadraticSolve().

Referenced by HelpersEnergy::acceleration().

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◆ quadraticSolve()

std::tuple< int, double, double > PolySolver::quadraticSolve ( double  a,
double  b,
double  c 
)
static

Solver of quadratic equation ax^2 + bx + c = 0.

Returns only real-valued roots.

Parameters
[in]aThe coefficient of the quadratic term x^2
[in]bThe coefficient of the linear term x
[in]cThe coefficient of the constant term
Returns
The number of real roots and these real roots

Definition at line 34 of file PolySolver.cpp.

Referenced by cubicSolve().

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