Package dk.jonaslindstrom.ruffini.polynomials.elements

Class Polynomial<E>

java.lang.Object

dk.jonaslindstrom.ruffini.polynomials.elements.Polynomial<E>

All Implemented Interfaces:

java.util.function.BiFunction<E,Ring<E>,E>

public final class Polynomial<E>
extends Object
implements java.util.function.BiFunction<E,Ring<E>,E>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Polynomial.Builder<S>

Constructor Summary

Constructors

Constructor	Description
Polynomial(int degree, java.util.function.IntFunction<E> populator)
Polynomial(Vector<E> coefficients, Ring<E> ring)
Polynomial(Polynomial<E> p)
Polynomial(Collection<Integer> nonZero, java.util.function.IntFunction<E> populator)

Method Summary

Modifier and Type	Method	Description
E	apply(E input, Ring<E> ring)
List<E>	batchApply(List<E> input, PolynomialRingOverRing<E> ring)	Evaluate this polynomial for all inputs in the given list.
static <T> Polynomial<T>	constant(T constant)
int	degree()
Polynomial<E>	differentiate(Ring<E> ring)
boolean	equals(Object o)
void	forEach(java.util.function.BiConsumer<Integer,E> consumer)
void	forEachInParallel(java.util.function.BiConsumer<Integer,E> consumer)
E	getCoefficient(int i)	Get the i'th coefficient or, if it is not present, null.
E	getConstant()
int	hashCode()
<X> Polynomial<X>	mapCoefficients(java.util.function.Function<E,X> converter)
static <T> Polynomial<T>	monomial(T coefficient, int degree)
static <T> Polynomial<T>	of(T... coefficients)	Construct a new polynomial with the given coefficients.
Polynomial<E>	removeTerms(java.util.function.Predicate<E> predicate)
Polynomial<E>	reverse()
Polynomial<E>	scale(E scale, Ring<E> ring)
String	toString()
String	toString(String variable)
String	toString(String variable, java.util.function.Function<E,String> stringRepresentation)
Vector<E>	vector(E zero)	Return the coefficients of this polynomial as a vector.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.function.BiFunction

andThen

Constructor Details

Polynomial

public Polynomial(Polynomial<E> p)

Polynomial

public Polynomial(int degree,
 java.util.function.IntFunction<E> populator)

Polynomial

public Polynomial(Collection<Integer> nonZero,
 java.util.function.IntFunction<E> populator)

Polynomial

public Polynomial(Vector<E> coefficients,
 Ring<E> ring)

Method Details

constant

public static <T> Polynomial<T> constant(T constant)

monomial

public static <T> Polynomial<T> monomial(T coefficient,
 int degree)

of

@SafeVarargs
public static <T> Polynomial<T> of(T... coefficients)

Construct a new polynomial with the given coefficients. The constant coefficient is first, the linear is second etc.

forEach

public void forEach(java.util.function.BiConsumer<Integer,E> consumer)

forEachInParallel

public void forEachInParallel(java.util.function.BiConsumer<Integer,E> consumer)

mapCoefficients

public <X> Polynomial<X> mapCoefficients(java.util.function.Function<E,X> converter)

removeTerms

public Polynomial<E> removeTerms(java.util.function.Predicate<E> predicate)

scale

public Polynomial<E> scale(E scale,
 Ring<E> ring)

apply

public E apply(E input,
 Ring<E> ring)

Specified by:

apply in interface java.util.function.BiFunction<E,Ring<E>,E>

batchApply

public List<E> batchApply(List<E> input,
 PolynomialRingOverRing<E> ring)

Evaluate this polynomial for all inputs in the given list.

degree

public int degree()

getCoefficient

public E getCoefficient(int i)

Get the i'th coefficient or, if it is not present, null.

vector

public Vector<E> vector(E zero)

Return the coefficients of this polynomial as a vector. The coefficients (of degree less than the degree of the polynomial) that are not present will be replaced by the given zero value.

differentiate

public Polynomial<E> differentiate(Ring<E> ring)

reverse

public Polynomial<E> reverse()

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(String variable,
 java.util.function.Function<E,String> stringRepresentation)

toString

public String toString(String variable)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getConstant

public E getConstant()