Package edu.jas.ufd

Class GCDProxy<C extends GcdRingElem<C>>

java.lang.Object

edu.jas.ufd.GreatestCommonDivisorAbstract<C>

edu.jas.ufd.GCDProxy<C>

All Implemented Interfaces:

GreatestCommonDivisor<C>, java.io.Serializable

public class GCDProxy<C extends GcdRingElem<C>>
extends GreatestCommonDivisorAbstract<C>

Greatest common divisor parallel proxy. Executes methods from two implementations in parallel and returns the result from the fastest run.

Author:

Heinz Kredel

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
GreatestCommonDivisorAbstract<C>	e1	GCD and resultant engines.
GreatestCommonDivisorAbstract<C>	e2
protected java.util.concurrent.ExecutorService	pool	Thread pool.

Constructor Summary

Constructors

Constructor	Description
GCDProxy(GreatestCommonDivisorAbstract<C> e1, GreatestCommonDivisorAbstract<C> e2)	Proxy constructor.

Method Summary

Modifier and Type	Method	Description
GenPolynomial<C>	baseGcd(GenPolynomial<C> P, GenPolynomial<C> S)	Univariate GenPolynomial greatest common divisor.
GenPolynomial<C>	baseResultant(GenPolynomial<C> P, GenPolynomial<C> S)	Univariate GenPolynomial resultant.
GenPolynomial<C>	gcd(GenPolynomial<C> P, GenPolynomial<C> S)	GenPolynomial greatest common divisor.
GenPolynomial<GenPolynomial<C>>	recursiveUnivariateGcd(GenPolynomial<GenPolynomial<C>> P, GenPolynomial<GenPolynomial<C>> S)	Univariate GenPolynomial recursive greatest common divisor.
GenPolynomial<GenPolynomial<C>>	recursiveUnivariateResultant(GenPolynomial<GenPolynomial<C>> P, GenPolynomial<GenPolynomial<C>> S)	Univariate GenPolynomial resultant.
GenPolynomial<C>	resultant(GenPolynomial<C> P, GenPolynomial<C> S)	GenPolynomial resultant.
java.lang.String	toString()	Get the String representation with gcd engines.

Methods inherited from class edu.jas.ufd.GreatestCommonDivisorAbstract

baseContent, baseExtendedGcd, baseGcdDiophant, baseHalfExtendedGcd, basePartialFraction, basePartialFraction, basePartialFraction, basePartialFractionValue, basePrimitivePart, basePrimitivePart, baseRecursiveContent, baseRecursivePrimitivePart, content, contentPrimitivePart, coPrime, coPrime, coPrimeRec, divide, gcd, gcd, isBasePartialFraction, isBasePartialFraction, isCoPrime, isCoPrime, lcm, primitivePart, recursiveContent, recursiveGcd, recursivePrimitivePart, recursivePrimitivePart, recursiveResultant

Methods inherited from class java.lang.Object

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

Field Detail

e1

public final GreatestCommonDivisorAbstract<C extends GcdRingElem<C>> e1

GCD and resultant engines.

e2

public final GreatestCommonDivisorAbstract<C extends GcdRingElem<C>> e2

pool

protected transient java.util.concurrent.ExecutorService pool

Thread pool.

Constructor Detail

GCDProxy

public GCDProxy(GreatestCommonDivisorAbstract<C> e1,
                GreatestCommonDivisorAbstract<C> e2)

Proxy constructor.

Method Detail

toString

public java.lang.String toString()

Get the String representation with gcd engines.

Overrides:

toString in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

See Also:

Object.toString()

baseGcd

public GenPolynomial<C> baseGcd(GenPolynomial<C> P,
                                GenPolynomial<C> S)

Univariate GenPolynomial greatest common divisor.

Specified by:

baseGcd in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

Parameters:

P - univariate GenPolynomial.

S - univariate GenPolynomial.

Returns:

gcd(P,S).

recursiveUnivariateGcd

public GenPolynomial<GenPolynomial<C>> recursiveUnivariateGcd(GenPolynomial<GenPolynomial<C>> P,
                                                              GenPolynomial<GenPolynomial<C>> S)

Univariate GenPolynomial recursive greatest common divisor.

Specified by:

recursiveUnivariateGcd in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

Parameters:

P - univariate recursive GenPolynomial.

S - univariate recursive GenPolynomial.

Returns:

gcd(P,S).

gcd

public GenPolynomial<C> gcd(GenPolynomial<C> P,
                            GenPolynomial<C> S)

GenPolynomial greatest common divisor.

Specified by:

gcd in interface GreatestCommonDivisor<C extends GcdRingElem<C>>

Overrides:

gcd in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

Parameters:

P - GenPolynomial.

S - GenPolynomial.

Returns:

gcd(P,S).

baseResultant

public GenPolynomial<C> baseResultant(GenPolynomial<C> P,
                                      GenPolynomial<C> S)

Univariate GenPolynomial resultant.

Overrides:

baseResultant in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

Parameters:

P - univariate GenPolynomial.

S - univariate GenPolynomial.

Returns:

res(P,S).

recursiveUnivariateResultant

public GenPolynomial<GenPolynomial<C>> recursiveUnivariateResultant(GenPolynomial<GenPolynomial<C>> P,
                                                                    GenPolynomial<GenPolynomial<C>> S)

Univariate GenPolynomial resultant.

Overrides:

recursiveUnivariateResultant in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

Parameters:

P - univariate recursive GenPolynomial.

S - univariate recursive GenPolynomial.

Returns:

res(P,S).

resultant

public GenPolynomial<C> resultant(GenPolynomial<C> P,
                                  GenPolynomial<C> S)

GenPolynomial resultant. Main entry driver method.

Specified by:

resultant in interface GreatestCommonDivisor<C extends GcdRingElem<C>>

Overrides:

resultant in class GreatestCommonDivisorAbstract<C extends GcdRingElem<C>>

Parameters:

P - GenPolynomial.

S - GenPolynomial.

Returns:

res(P,S).

See Also:

GreatestCommonDivisorAbstract.recursiveResultant(edu.jas.poly.GenPolynomial<edu.jas.poly.GenPolynomial<C>>, edu.jas.poly.GenPolynomial<edu.jas.poly.GenPolynomial<C>>)