Jan, This happens if (and only if?) you have the optional database installed, since then calls to E.gens() return the database generators rather than computing them.
I just report this to Robert Miller since heegner.py is the only file with this behaviour now (there used to be a lot more). So it is harmless and will go away one day soon. In fact I already fixed all but two of the problem places as part of a patch I put up at #6390 yesterday; but there remain two (the [g.alpha() for g in G] ones) which I hope Robert will fix. John On 21 March 2010 13:04, Jan Groenewald <j...@aims.ac.za> wrote: > Hi > > Installed Sage 4.3.4 on 643bit Ubuntu 9.04 jaunty from source, with optional > packages: > > 0 r...@muizenberg:/usr/local/src/sage-4.3.4/spkg#ls optional/ huge > huge: > README.txt stein-watkins-ecdb.spkg stein-watkins-ecdb.spkg.md5 > > optional/: > biopython-1.53.p0.spkg database_kohel-20060803.spkg > database_symbolic_data-20070206.spkg > database_cremona_ellcurve-20071019.p0.spkg database_odlyzko_zeta.spkg > gap_packages-4.4.12_2.spkg > database_gap-4.4.12.spkg > database_sloane_oeis-2005-12.spkg jsmath-image-fonts-1.4.p3.spkg > database_jones_numfield-v4.spkg database_stein_watkins_mini.spkg > > and a local patch to > devel/sage-AIMS-autosave-patch/sage/server/notebook/user_conf.py > (I set max_history_length to 10, not 1000, and autosave_interval to 120*60, > not 60*60). > and I sage -b AIMS-autosave-patch. > > Once done I did: > > make test > > gives > > ---------------------------------------------------------------------- > The following tests failed: > > > sage -t "devel/sage/sage/schemes/elliptic_curves/heegner.py" > Total time for all tests: 4492.7 seconds > Please see /root/.sage//tmp/test.log for the complete log from this test. > > and from the test.log: > > sage -t "devel/sage/sage/schemes/elliptic_curves/heegner.py" > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 71: > sage: E.gens() > Expected: > [(1 : 1 : 1)] > Got: > [(1 : -1 : 1)] > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 73: > sage: -3*E.gens()[0] > Expected: > (0 : 1 : 1) > Got: > (0 : -1 : 1) > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 3576: > sage: E.gens() > Expected: > [(2 : 1 : 1)] > Got: > [(2 : -2 : 1)] > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 3586: > sage: 2*E.gens()[0] > Expected: > (1 : 0 : 1) > Got: > (1 : -1 : 1) > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 6211: > sage: 6*E.gens()[0] > Expected: > (6 : -15 : 1) > Got: > (6 : 14 : 1) > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 1409: > sage: [g.alpha() for g in G] > Expected: > [1, 1/2*sqrt_minus_52 + 1, -1/2*sqrt_minus_52, 1/2*sqrt_minus_52 - 1] > Got: > [1, -1/2*sqrt_minus_52 - 1, -1/2*sqrt_minus_52, 1/2*sqrt_minus_52 - 1] > ********************************************************************** > File > "/usr/local/src/sage/devel/sage/sage/schemes/elliptic_curves/heegner.py", > line 1415: > sage: sorted([g.alpha() for g in G]) > Expected: > [1, -1/2*sqrt_minus_52, 1/2*sqrt_minus_52 + 1, 1/2*sqrt_minus_52 - 1, > 1/2*sqrt_minus_52 - 2, -1/2*sqrt_minus_52 - 2] > Got: > [1, -1/2*sqrt_minus_52, -1/2*sqrt_minus_52 - 1, 1/2*sqrt_minus_52 - 1, > 1/2*sqrt_minus_52 - 2, -1/2*sqrt_minus_52 - 2] > ********************************************************************** > ********************************************************************** > 4 items had failures: > 2 of 35 in __main__.example_0 > 2 of 11 in __main__.example_142 > 1 of 7 in __main__.example_225 > 2 of 10 in __main__.example_55 > ***Test Failed*** 7 failures. > For whitespace errors, see the file /root/.sage//tmp/.doctest_heegner.py > [57.5 s] > > regards, > Jan > -- > .~. > /V\ Jan Groenewald > /( )\ www.aims.ac.za > ^^-^^ > > -- > To post to this group, send an email to sage-devel@googlegroups.com > To unsubscribe from this group, send an email to > sage-devel+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/sage-devel > URL: http://www.sagemath.org > > To unsubscribe from this group, send email to > sage-devel+unsubscribegooglegroups.com or reply to this email with the words > "REMOVE ME" as the subject. > -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-devel+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
