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Re: Large number multiplication

References <iv2d7n$ksv$1@speranza.aioe.org> <mailman.721.1309982555.1164.python-list@python.org> <iv2g6s$sl0$1@speranza.aioe.org> <m47ge8-j67.ln1@satorlaser.homedns.org>
From Ian Kelly <ian.g.kelly@gmail.com>
Date 2011-07-07 09:49 -0600
Subject Re: Large number multiplication
Newsgroups comp.lang.python
Message-ID <mailman.746.1310053781.1164.python-list@python.org> (permalink)

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On Thu, Jul 7, 2011 at 2:30 AM, Ulrich Eckhardt
<ulrich.eckhardt@dominolaser.com> wrote:
> Even worse, most people would actually pay for its use, because they don't
> use numbers large enough to merit the Schönhage–Strassen algorithm.

As it stands, Karatsuba is only used for numbers greater than a
specific threshold.  Adding Schönhage–Strassen would just mean adding
another threshold, below which Karatsuba would still be used.  So at
worst it would just add another comparison or two for numbers within
the Karatsuba range.

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Large number multiplication Billy Mays <noway@nohow.com> - 2011-07-06 15:30 -0400
  Re: Large number multiplication Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-06 14:02 -0600
    Re: Large number multiplication Billy Mays <noway@nohow.com> - 2011-07-06 16:21 -0400
      Re: Large number multiplication Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-06 14:37 -0600
      Re: Large number multiplication Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-07-07 10:30 +0200
        Re: Large number multiplication Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-07 09:49 -0600
        Re: Large number multiplication Ian Kelly <ian.g.kelly@gmail.com> - 2011-07-07 09:50 -0600
        Re: Large number multiplication casevh <casevh@gmail.com> - 2011-07-07 10:46 -0700
        Re: Large number multiplication Mark Dickinson <mdickinson@enthought.com> - 2011-07-08 00:31 -0700
      Re: Large number multiplication Parerga <nabble.com@bodrato.it> - 2011-07-07 09:00 -0700
  Re: Large number multiplication Christian Heimes <lists@cheimes.de> - 2011-07-06 22:05 +0200
    Re: Large number multiplication Billy Mays <noway@nohow.com> - 2011-07-06 16:15 -0400
      Re: Large number multiplication Christian Heimes <lists@cheimes.de> - 2011-07-06 22:43 +0200
    Re: Large number multiplication Nobody <nobody@nowhere.com> - 2011-07-07 01:33 +0100

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