org.lsmp.djep.groupJep.values
Class Polynomial

java.lang.Object
  java.lang.Number
      org.lsmp.djep.groupJep.values.Polynomial

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

FreeGroupElement

public class Polynomial

extends java.lang.Number

The ring of polynomials over a ring R.

Author:

Rich Morris Created on 09-Mar-2004

See Also:

Serialized Form

Constructor Summary

Polynomial(RingI baseRing, java.lang.String symbol, java.lang.Number[] coeffs)

Method Summary

Polynomial	add(Polynomial poly)
Complex	calculateComplexValue(Complex rootVal) returns the complex value of this polynomial.
double	doubleValue() value of constant coeff.
boolean	equals(Polynomial n)
float	floatValue() value of constant coeff.
RingI	getBaseRing()
java.lang.Number	getCoeff(int i)
java.lang.Number[]	getCoeffs()
int	getDegree()
java.lang.String	getSymbol()
int	intValue() value of constant coeff.
long	longValue() value of constant coeff.
Polynomial	mul(Polynomial poly)
protected void	setCoeffs(java.lang.Number[] coeffs) Sub classes can change the coefficients.
Polynomial	sub(Polynomial poly)
java.lang.String	toString()
protected Polynomial	valueOf(java.lang.Number[] lcoeffs) sub classes should overright this to make the correct type.

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

Polynomial

public Polynomial(RingI baseRing,
                  java.lang.String symbol,
                  java.lang.Number[] coeffs)

Method Detail

setCoeffs

protected void setCoeffs(java.lang.Number[] coeffs)

Sub classes can change the coefficients. Other methods should treat polynomials as imutable.

valueOf

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

sub classes should overright this to make the correct type.

add

public Polynomial add(Polynomial poly)

sub

public Polynomial sub(Polynomial poly)

mul

public Polynomial mul(Polynomial poly)

toString

public java.lang.String toString()

getDegree

public int getDegree()

getSymbol

public java.lang.String getSymbol()

getCoeffs

public java.lang.Number[] getCoeffs()

getCoeff

public java.lang.Number getCoeff(int i)

getBaseRing

public RingI getBaseRing()

intValue

public int intValue()

value of constant coeff.

longValue

public long longValue()

value of constant coeff.

floatValue

public float floatValue()

value of constant coeff.

doubleValue

public double doubleValue()

value of constant coeff.

equals

public boolean equals(Polynomial n)

calculateComplexValue

public Complex calculateComplexValue(Complex rootVal)

returns the complex value of this polynomial. Where the value of the symbol is replaced by rootVal.