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  • Andreas Enge's avatar
    c1fc6557
    Correct a bug when determining a generator in a real tower. · c1fc6557
    Andreas Enge authored 
    * src/f_tower.c (mpfrcx_is_galois_generator): Consider and reject the case
  that a supposedly complex conjugate pair of roots has become real, so
  that in fact it represents the same real root. This has occured in CM
  when computing the class polynomial with the Atkin invariant for
  d=-255.
* NEWS: Update.
    c1fc6557
    History
    Correct a bug when determining a generator in a real tower.
    Andreas Enge authored 
    * src/f_tower.c (mpfrcx_is_galois_generator): Consider and reject the case
  that a supposedly complex conjugate pair of roots has become real, so
  that in fact it represents the same real root. This has occured in CM
  when computing the class polynomial with the Atkin invariant for
  d=-255.
* NEWS: Update.
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