Package gov.nih.mipav.model.algorithms

Class Poly

java.lang.Object
gov.nih.mipav.model.algorithms.Poly
public class Poly extends Object
Solution of cubic, quartic, and quintic equations Ported from code written by (c) Khashin S.I. http://math.ivanovo.ac.ru/dalgebra/Khashin/index.html // khash2 (at) gmail.com // Thanks to Alexandr Rakhmanin invalid input: '<'rakhmanin (at) gmail.com> // public domain
Author:
ilb

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private final double
    eps
     
    private final double
    TwoPi
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    Poly()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    private double
    _root3(double x)
     
    private void
    CSqrt(double x, double y, double[] a, double[] b)
     
    private void
    dblSort3(double[] a, double[] b, double[] c)
     
    double
    F5(double t, double a, double b, double c, double d, double e)
     
    private double
    N4Step(double x, double a, double b, double c, double d)
     
    private double
    root3(double x)
     
    void
    selfTest()
     
    int
    SolveP2(double[] x, double a, double b)
     
    int
    SolveP3(double[] x, double a, double b, double c)
     
    int
    SolveP4(double[] x, double a, double b, double c, double d)
     
    private int
    SolveP4Bi(double[] x, double b, double d)
     
    private int
    SolveP4De(double[] x, double b, double c, double d)
     
    int
    SolveP5(double[] x, double a, double b, double c, double d, double e)
     
    private double
    SolveP5_1(double a, double b, double c, double d, double e)
     
    private void
    SWAP(double[] a, double[] b)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Constructor Details

    • Poly

      public Poly()

  • Method Details

    • selfTest

      public void selfTest()

    • _root3

      private double _root3(double x)

    • root3

      private double root3(double x)

    • SolveP2

      public int SolveP2(double[] x, double a, double b)

    • SolveP3

      public int SolveP3(double[] x, double a, double b, double c)

    • CSqrt

      private void CSqrt(double x, double y, double[] a, double[] b)

    • SolveP4Bi

      private int SolveP4Bi(double[] x, double b, double d)

    • SWAP

      private void SWAP(double[] a, double[] b)

    • dblSort3

      private void dblSort3(double[] a, double[] b, double[] c)

    • SolveP4De

      private int SolveP4De(double[] x, double b, double c, double d)

    • N4Step

      private double N4Step(double x, double a, double b, double c, double d)

    • SolveP4

      public int SolveP4(double[] x, double a, double b, double c, double d)

    • F5

      public double F5(double t, double a, double b, double c, double d, double e)

    • SolveP5_1

      private double SolveP5_1(double a, double b, double c, double d, double e)

    • SolveP5

      public int SolveP5(double[] x, double a, double b, double c, double d, double e)