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# Interface JSci.maths.groups.AbelianGroupMember

public interface AbelianGroupMember

This interface defines a member of an abelian group.

##

add(AbelianGroupMember)
  The group composition law.
negate()
  Returns the inverse member.
subtract(AbelianGroupMember)
  The group composition law with inverse.

##

add

     public abstract AbelianGroupMember add(AbelianGroupMember g)

  The group composition law.

  Parameters:
    g - a group member

negate

     public abstract AbelianGroupMember negate()

  Returns the inverse member.

subtract

     public abstract AbelianGroupMember subtract(AbelianGroupMember g)

  The group composition law with inverse.

  Parameters:
    g - a group member

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