ATOMFT ver. 3.11, copyright(C) 1979-93, Y. F. Chang.
           -----------------------------------------------------


COPTION DOUBLE,DUMP=1
      DIFF ( Y , X , 1 ) = - 2.0 * X / (X *  X + 1.0) /( X * X + 1.0)
   $
   $
      MPRINT = 2
      NSTEPS = 1000
      START = -2.0d0
      END = -1.0d0
      DLTXPT = 0.1d0
      Y(1) = (1.0d0 / (START * START + 1.0d0))
      WRITE(LIST,120) START,END,DLTXPT,Y(1)
  120 FORMAT(8F16.10)
   $
   $
          ATOMFT completed