Error in lines 1-1
Traceback (most recent call last):
File
"/projects/00f50bac-d0a4-44e5-b456-34ae18b9117d/.sagemathcloud/sage_server.py",
line 733, in execute
exec compile(block+'\n', '', 'single') in namespace, locals
File "", line 1, in <module>
File "parent.pyx", line 1511, in sage.structure.parent.Parent.__getitem__
(sage/structure/parent.c:10598)
File "parent.pyx", line 822, in sage.structure.parent.Parent.__getattr__
(sage/structure/parent.c:6997)
File "misc.pyx", line 251, in sage.structure.misc.getattr_from_other_class
(sage/structure/misc.c:1606)
AttributeError: 'FinitelyGeneratedMatrixGroup_generic_with_category' object has
no attribute 'list'
As far as I can tell, sage is for some reason not able to run the
algorithm to generate the group, hence it does not even know that it is
finite.
On Friday, April 18, 2014 8:11:05 AM UTC-7, David Joyner wrote:
>
> On Fri, Apr 18, 2014 at 11:08 AM, Ben Cote <cot...@gmail.com <javascript:>>
> wrote:
> > I am trying to get sage to list the elements of a (finite) finitely
> > generated matrix group.
> >
> > It works in version 5.9 installed on a Mac, but not on 6.1.1 on linux or
> on
> > the cloud, which leads me to believe somewhere between 5.9 and 6.1.1 the
> > .list() operation for finite matrix groups was compromised. I just was
> > hoping to bring this to the attention of someone who might repair it for
> > future versions.
> >
> > Here is the code:
> >
> > x=polygen(QQ,'x')
> > E.<w>=NumberField(x^2+x+1,'w')
> >
> > r=matrix([[w,0],[-w^2,1]])
> > s=matrix([[1,w^2],[0,w]])
> >
> >
> > G4 = MatrixGroup([r,s])
> > l = G4.list() # returns the elements of G as a list
> >
>
> What does
>
> [x for x in G4]
>
> return?
>
> > Here is the error from the cloud:
> >
> > Traceback (most recent call last):
> > File
> >
> "/projects/00f50bac-d0a4-44e5-b456-34ae18b9117d/.sagemathcloud/sage_server.py",
>
>
> > line 733, in execute
> > exec compile(block+'\n', '', 'single') in namespace, locals
> > File "", line 1, in <module>
> > File "parent.pyx", line 822, in
> sage.structure.parent.Parent.__getattr__
> > (sage/structure/parent.c:6997)
> > File "misc.pyx", line 251, in
> sage.structure.misc.getattr_from_other_class
> > (sage/structure/misc.c:1606)
> > AttributeError: 'FinitelyGeneratedMatrixGroup_generic_with_category'
> object
> > has no attribute 'list'
> >
> >
> > Here is the error from 6.11 on a linux machine:
> >
> > AttributeError Traceback (most recent call
> last)
> > <ipython-input-9-a6e94ecf7e4a> in <module>()
> > ----> 1 G4.list()
> >
> >
> /opt/sage-6.1.1-x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so
>
>
> > in sage.structure.parent.Parent.__getattr__
> (sage/structure/parent.c:6997)()
> >
> >
> /opt/sage-6.1.1-x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/misc.so
>
>
> > in sage.structure.misc.getattr_from_other_class
> > (sage/structure/misc.c:1606)()
> >
> > AttributeError: 'FinitelyGeneratedMatrixGroup_generic_with_category'
> object
> > has no attribute 'list'
> >
> >
> > And as I said before, it works and "l" prints the list of 24 matrices on
> the
> > 5.9 version on a mac.
> >
> > Also, 5.9 says that type(G4) is
> >
> > <class
> >
> 'sage.groups.matrix_gps.finitely_generated.FinitelyGeneratedMatrixGroup_gens_with_category'>
>
>
> > But the cloud and 6.1.1 say
> > <class
> >
> 'sage.groups.matrix_gps.finitely_generated.FinitelyGeneratedMatrixGroup_generic_with_category'>
>
>
> >
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups
> > "sage-devel" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an
> > email to sage-devel+...@googlegroups.com <javascript:>.
> > To post to this group, send email to
> > sage-...@googlegroups.com<javascript:>.
>
> > Visit this group at http://groups.google.com/group/sage-devel.
> > For more options, visit https://groups.google.com/d/optout.
>
--
You received this message because you are subscribed to the Google Groups
"sage-devel" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sage-devel+unsubscr...@googlegroups.com.
To post to this group, send email to sage-devel@googlegroups.com.
Visit this group at http://groups.google.com/group/sage-devel.
For more options, visit https://groups.google.com/d/optout.
