Changes between Version 9 and Version 13 of Ticket #12116


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Timestamp:
03/12/12 16:42:10 (9 years ago)
Author:
jdemeyer
Comment:

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  • Ticket #12116

    • Property Status changed from needs_work to needs_info
    • Property Report Upstream changed from Completely fixed; Fix reported upstream to Reported upstream. Little or no feedback.
  • Ticket #12116 – Description

    v9 v13  
    88
    99 * This patch deprecates `is_power`.
    10  * It implements a new function, `perfect_power`, wrapping PARI's `ispower` function, expressing an integer in the form a^b^ with `b` maximal.  This revealed a bug in PARI for negative even powers, reported and fixed at [http://pari.math.u-bordeaux.fr/cgi-bin/bugreport.cgi?bug=1259&archive=yes]
     10 * It implements a new function, `perfect_power`, wrapping PARI's `ispower` function, expressing an integer in the form a^b^ with `b` maximal.
    1111 * It adds cross references between `is_perfect_power`, `is_power_of`, `is_prime_power` and `perfect_power`.
     12
     13
     14This revealed three bugs in PARI's `ispower()` function:
     15 1. Two issues reported and fixed at [http://pari.math.u-bordeaux.fr/cgi-bin/bugreport.cgi?bug=1259]
     16 2. One more issue reported at [http://pari.math.u-bordeaux.fr/cgi-bin/bugreport.cgi?bug=1302]