HPCOEF: Compute  symmetric  linear  high-pass   filter  coefficients;  return
         coefficients (no printed output)

         REAL HLP(k), HHP(k)
         :
         :
         CALL HPCOEF (HLP, K, HHP)


 Argument definitions are given in the on-line STARPAC User's Guide.
 The ACCESS document describes how to print a copy of the Guide.