GMP upgrade to 4.2.4 leads to errors in PARI/GP
vincent at vinc17.org
Mon Mar 9 05:24:39 CET 2009
On 2009-03-09 03:12:02 +0100, Vincent Lefevre wrote:
> The input is "17." (the number 17 seen as a floating-point number).
> The output is 1.0E99, which is clearly wrong (it should have been 17).
In fact, rebuilding pari doesn't help:
Reading GPRC: /Users/vinc17/.gprc ...Done.
GP/PARI CALCULATOR Version 2.3.4 (released)
PowerPC running darwin (PPC/GMP-4.2.4 kernel) 32-bit version
compiled: Mar 9 2009, gcc-4.0.1 (Apple Computer, Inc. build 5367)
(readline v6.0 enabled, extended help available)
Copyright (C) 2000-2006 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 = 1.000000000000000002257486487 E72
%1 = 17.000000000000000000000000000000000000
I've also sent a bug report to the PARI mailing-list.
Vincent Lefèvre <vincent at vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)
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