com.numericalmethod.suanshu.analysis.function.polynomial.root

Class QuarticRoot

java.lang.Object

com.numericalmethod.suanshu.analysis.function.polynomial.root.QuarticRoot

All Implemented Interfaces:

PolyRootSolver, java.io.Serializable

public class QuarticRoot
extends java.lang.Object
implements PolyRootSolver

This is a quartic equation solver that solves \(ax^4 + bx^3 + cx^2 + dx + e = 0\).

See Also:

Wikipedia: QuarticRoot equation, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	QuarticRoot.QuarticSolver This defines a quartic equation solver.

Constructor Summary

Constructors

Constructor and Description
QuarticRoot() Construct a quartic equation solver.
QuarticRoot(QuarticRoot.QuarticSolver solver) Construct a quartic equation solver.

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.Number>	solve(Polynomial polynomial) Solve \(ax^4 + bx^3 + cx^2 + dx + e = 0\).

Methods inherited from class java.lang.Object

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

Constructor Detail

QuarticRoot

public QuarticRoot(QuarticRoot.QuarticSolver solver)

Construct a quartic equation solver.

Parameters:

solver - the implementation of a QuarticSolver

QuarticRoot

public QuarticRoot()

Construct a quartic equation solver.

Method Detail

solve

public java.util.List<java.lang.Number> solve(Polynomial polynomial)

Solve \(ax^4 + bx^3 + cx^2 + dx + e = 0\).

Specified by:

solve in interface PolyRootSolver

Parameters:

polynomial - a quartic equation to be solved

Returns:

the roots of the quartic equation

Throws:

java.lang.IllegalArgumentException - if the polynomial degree is not 4