ATOMFT  ver. 3.11, copyright (C) 1979-93, Y. F. Chang; Solution results.
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    3.0000000000    2.0000000000    0.1000000000             NaN

     Step number     0 at     X =  3.00000000D+00
      Y                   NaN
      X 3.0D+00, the trial H adjustment needs some help.