Igor Schein on Thu, 17 Mar 2005 00:38:09 +0100


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Re: Valuation Overflow


On Wed, Mar 16, 2005 at 05:19:23PM -0600, Ariel Pacetti wrote:
> 
>               GP/PARI CALCULATOR Version 2.2.8 (development 
> CHANGES-1.1059)
>                      i686 running linux (ix86 kernel) 32-bit version
>             compiled: Feb 15 2005, gcc-3.2 20020903 (Red Hat Linux 8.0 
> 3.2-7)
>                      (readline v4.3 enabled, extended help available)
> 
>                             Copyright (C) 2003 The PARI Group
> 
> PARI/GP is free software, covered by the GNU General Public License, and 
> comes WITHOUT
> ANY WARRANTY WHATSOEVER.
> 
> Type ? for help, \q to quit.
> Type ?12 for how to get moral (and possibly technical) support.
> 
> parisize = 4000000, primelimit = 500000
> ? 1/(1+q)+O(q^40000)
>   ***   valuation (valp) overflow

On 32bit machine you can only go as high as 2^15-1.  I can't find
immediately where, but I am pretty sure it's documented somewhere in
the manual.

Igor