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

java.lang.Object
  com.numericalmethod.suanshu.analysis.function.polynomial.root.Linear

All Implemented Interfaces:

Solver

public class Linear
extends java.lang.Object
implements Solver

This is a linear equation solver.

A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and (the first power of) a single variable. That is, it has this form

ax + b = 0

The solution is simply

x = -b/a

See Also:

Wikipedia: Linear equation

Nested Class Summary

Nested classes/interfaces inherited from interface com.numericalmethod.suanshu.analysis.function.polynomial.root.Solver

Solver.RootFindingException, Solver.Type

Constructor Summary

Linear()

Method Summary

NumberList	solve(Polynomial polynomial) Solve ax + b = 0
Solver.Type	type() Get the type of the solver.

Methods inherited from class java.lang.Object

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

Constructor Detail

Linear

public Linear()

Method Detail

type

public Solver.Type type()

Description copied from interface: Solver

Get the type of the solver.

Specified by:

type in interface Solver

Returns:

the solver type

solve

public NumberList solve(Polynomial polynomial)

Solve

ax + b = 0

Specified by:

solve in interface Solver

Parameters:

polynomial - the linear polynomial to solve

Returns:

a list of all roots in Number

Throws:

java.lang.IllegalArgumentException - if the polynomial degree is not 1