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# Interface JSci.maths.Ring

public interface Ring
extends AbelianGroup

This interface defines a ring.

##

isOne(RingMember)
  Returns true if the member is the unit element.
one()
  Returns the unit element.

##

one

     public abstract RingMember one()

  Returns the unit element.

isOne

     public abstract boolean isOne(RingMember r)

  Returns true if the member is the unit element.

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