org.lsmp.djep.groupJep.values

Class FreeGroupElement

java.lang.Object

java.lang.Number

org.lsmp.djep.groupJep.values.Polynomial

org.lsmp.djep.groupJep.values.FreeGroupElement

All Implemented Interfaces:

java.io.Serializable, HasComplexValueI

Direct Known Subclasses:

AlgebraicExtensionElement

public class FreeGroupElement
extends Polynomial
implements HasComplexValueI

An element of a free group with one generator.

Author:

Rich Morris Created on 09-Mar-2004

See Also:

FreeGroup, Serialized Form

Constructor Summary

Constructors

Constructor and Description
FreeGroupElement(FreeGroup K, java.lang.Number[] coeffs) An element of a free group with one generator.

Method Summary

Methods

Modifier and Type	Method and Description
Complex	getComplexValue() Returns an approximation to the complex number representing this algebraic number.
protected Polynomial	valueOf(java.lang.Number[] lcoeffs) sub classes should overwrite this to make the correct type.

Methods inherited from class org.lsmp.djep.groupJep.values.Polynomial

add, calculateComplexValue, calculateValue, div, doubleValue, equals, floatValue, getBaseRing, getCoeff, getCoeffs, getDegree, getSymbol, intValue, isConstantPoly, longValue, mul, pow, setCoeffs, sub, toString

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Constructor Detail

FreeGroupElement

public FreeGroupElement(FreeGroup K,
                java.lang.Number[] coeffs)

An element of a free group with one generator.

Parameters:

K - the free group.

coeffs - array of coefficients for this element c0 + c1 t + ... + cn t^n

Method Detail

valueOf

protected Polynomial valueOf(java.lang.Number[] lcoeffs)

sub classes should overwrite this to make the correct type.

Overrides:

valueOf in class Polynomial

getComplexValue

public Complex getComplexValue()

Returns an approximation to the complex number representing this algebraic number. This only gives meaningful results if setRootValue has been called or if it is a quadratic extension (t^2+b t+c) or if it is a simple n-th root (t^n+a). In the last two cases the root value is calculated automatically.

Specified by:

getComplexValue in interface HasComplexValueI

Returns:

Complex(Nan) if currently unable to calculate it.