FUNCTION :  sset - 

CALLING SEQUENCE :  sset(m)                                                  

PARAMETERS :      m - positive integer

SYNOPSIS :   Returns a set of representives for the following      
             equivalence relation on the set of integers relatively
             prime to m. We say to two such integers n1, n2 are    
             equivalent if n1 == +/- n2 mod m.      

EXAMPLES :   

DISCUSSION :

SEE ALSO :