|Jason Moxham on Sat, 04 Jul 2009 00:53:17 +0200|
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|Re: Some bugs?|
To: <firstname.lastname@example.org> Sent: Friday, July 03, 2009 5:45 PM Subject: Re: Some bugs?
On Fri, Jul 03, 2009 at 04:45:28PM +0100, Jason Moxham wrote:This seems to work on linux32 though. Could you compare the output of polchebyshev(n,2) (for n=26..50) on cygwin and linux ?Typical, one of the machines I use for linux32 has no bison , the otherYou can install bison if you need it.one's network card has broken , and my main one is only booting the wrong kernel :( , so here is a cygwin with no gmp which appears to work...GP/PARI CALCULATOR Version 2.4.2 (development) i686 running cygwin (ix86/GMP-4.2.1 kernel) 32-bit version parisize = 4000000, primelimit = 500000 ? polchebyshev(27,2) %2 = 134217728*x^27 - 872415232*x^25 + 2516582400*x^23 - 4244635648*x^21 + 46425 70240*x^19 - 3218161810*x^17 + 1657840932*x^15 - 592086047*x^13 + 144320973*x^11 - 23209513*x^9 + 2320951*x^7 - 130320*x^5 + 3393*x^3 - 26*xGP/PARI CALCULATOR Version 2.4.2 (development) i686 running cygwin (ix86 kernel) 32-bit version ? polchebyshev(27,2) %2 = 134217728*x^27 - 872415232*x^25 + 2516582400*x^23 - 4244635648*x^21 + 46425 70240*x^19 - 3451650048*x^17 + 1778122752*x^15 - 635043840*x^13 + 154791936*x^11 - 24893440*x^9 + 2489344*x^7 - 139776*x^5 + 3640*x^3 - 28*xTheses results are different (the second is correct) However I see that revision 9957 fixed a memory corruption bug in polchebyshev(,2). This might explain the discrepancy. If you want to be sure apply the patch given by 'svn diff -c 9957'. But it is more important to focus on the SVN HEAD branch, because 2.4.2 is not supported. Cheers, Bill.
ThanksThe Sage project will be using Pari SVN HEAD for the Windows port so I can forget this as well :)