nts 
      uniformly distributed in the unit hypersquare.  However, a user 
      may be interested in computations with other geometries or 
      point densities.  To do this, the user needs to replace the
      <b>USER</b> routine in the <b>CVT</b> library, and then specify
      the appropriate values <b>init=3</b> and <b>sample=3</b>.      
    </p>

    <p>
      The <b>USER</b> routine returns a set of sample points from the 
      region of interest.  The default <b>USER</b> routine samples points
 