edu.jas.structure
Interface AbelianGroupElem<C extends AbelianGroupElem<C>>

All Superinterfaces:

java.lang.Cloneable, java.lang.Comparable<C>, Element<C>, java.io.Serializable

All Known Subinterfaces:

AlgebraElem<A,C>, GcdRingElem<C>, ModulElem<M,C>, RingElem<C>, StarRingElem<C>

All Known Implementing Classes:

AlgebraicNumber, BigComplex, BigDecimal, BigInteger, BigOctonion, BigQuaternion, BigRational, GenMatrix, GenPolynomial, GenSolvablePolynomial, GenVector, Local, Local, ModInteger, Quotient, Quotient, Residue, Residue

public interface AbelianGroupElem<C extends AbelianGroupElem<C>>
extends Element<C>

Abelian group element interface. Defines the additive methods.

Author:

Heinz Kredel

Type parameter:

C element type.

Method Summary

C	abs() Absolute value of this.
boolean	isZERO() Test if this is zero.
C	negate() Negate this.
int	signum() Signum.
C	subtract(C S) Subtract S from this.
C	sum(C S) Sum of this and S.

Methods inherited from interface edu.jas.structure.Element

clone, compareTo, equals, hashCode

Method Detail

isZERO

boolean isZERO()

Test if this is zero.

Returns:

true if this is 0, else false.

signum

int signum()

Signum.

Returns:

the sign of this.

sum

C sum(C S)

Sum of this and S.

Parameters:

S -

Returns:

this + S.

subtract

C subtract(C S)

Subtract S from this.

Parameters:

S -

Returns:

this - S.

negate

C negate()

Negate this.

Returns:

- this.

abs

C abs()

Absolute value of this.

Returns:

|this|.