Hello Mike (H), On Sun, Apr 6, 2008 at 5:46 AM, Mike Hansen <[EMAIL PROTECTED]> wrote:
> I'm not able to reproduce your bug. Here is what I get: I am able to reproduce the bug (on an Intel machine; see below). > sage: s = SFASchur(QQ) > sage: p = SFAPower(QQ) > sage: s(p(s([14]))) > s[14] > sage: a = s(p(s([14])))*s([14]) > sage: a > s[14, 14] + s[15, 13] + s[16, 12] + s[17, 11] + s[18, 10] + s[19, 9] + > s[20, 8] + s[21, 7] + s[22, 6] + s[23, 5] + s[24, 4] + s[25, 3] + > s[26, 2] + s[27, 1] + s[28] This is okay. > sage: sage: s = SFASchur(QQ) > sage: s([14,14]).itensor(s([17,11])) This is not. For example, sage: c = s([14,14]).itensor(s([17,11])) sage: c.coefficients()[70] 42204149/896259893760 > I will try to get access to a PowerPC machine to try to see if I can > reproduce (and debug) it there. I am using an Intel MacBook running Ubuntu 7.10 and Sage 2.11. Let me know if you want more information, and what to do to get you that information. Hope this helps, Franco -- > On Sat, Apr 5, 2008 at 9:38 AM, Mike Zabrocki > > <[EMAIL PROTECTED]> wrote: > > > > > > Hi Mike, > > I think you fixed this bug so that now it fails at a higher > > value. I calculate > > sage: s = SFASchur(QQ) > > sage: s(s([14,14]).itensor(s([17,11]))) > > and after a couple of hours of calculation it returns a mess (rational > > coefficients). > > Again, this more likely to be a change of basis problem or that > > coefficients are overflowing somewhere so I tried tracking down the > > error to > > sage: p = SFAPower(QQ) > > sage: s(p(s([14]))*s([14])) > > > > again after a long time of calculation, rational coefficients. > > > > -Mike > > > > Just to verify > > sage: version() > > 'SAGE Version 2.11, Release Date: 2008-03-30' > > and I am calculating on a PowerBook G4 > > > > > > > > > > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
