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    o Remove unnecessary calls to FLOAT and FLOAT-SIGN---the args are · a02448dc
    toy authored
      known to be qd-real or qd-complex already.
    o In QD-COMPLEX-ATANH, revert the code that handles real args on the
      branch cuts.  This isn't needed anymore because the code was correct
      for z > 1 and calling qd-complex-atanh with (complex z -0) produces
      the correct branch.
    a02448dc