John, Thanks. I just tried downloading the patch and applying it. I have
Sage 5.8. However, when I did
patch constructor.py trac_3416_fixes.patch
all of the patches were rejected :-(.
Victor
On Wednesday, April 24, 2013 8:47:39 AM UTC-4, John Cremona wrote:
>
> Victor,
>
> The code at trac #3416 implements all this properly in Sage. It's an
> ancient ticket but the work on it is new, and it is one of the ones where
> so many people have wprked on it that there's no-onle left to revview it.
> That is a pity since Volker did a very nice job on it. But if you are able
> to download and apply the patch there then that's an alternative.
>
> John
>
>
> On 24 April 2013 13:39, Volker Braun <vbrau...@gmail.com <javascript:>>wrote:
>
>> I'm pretty sure I removed that in #3416
>>
>>
>> On Wednesday, April 24, 2013 1:27:58 PM UTC+1, Victor Miller wrote:
>>>
>>> E = EllipticCurve_from_cubic(F,(0,**0,1))
>>>>
>>>>
>>>> Traceback (most recent call last):
>>>> File "<stdin>", line 1, in <module>
>>>> File "_sage_input_8.py", line 10, in <module>
>>>> exec compile(u'open("___code___.py"**,"w").write("# -*- coding: utf-8
>>>> -*-\\n" +
>>>> _support_.preparse_worksheet_**cell(base64.b64decode("**RSA9IEVsbGlwdGljQ3VydmVfZnJvbV**9jdWJpYyhGLCgwLDAsMSkp"),**globals())+"\\n");
>>>> execfile(os.path.abspath("___**code___.py"))
>>>> File "", line 1, in <module>
>>>>
>>>> File
>>>> "/private/var/folders/zs/**sfhqf6rs4dgdjf89wmqsc6440000gn**/T/tmpy6Qdo7/___code___.py",
>>>> line 3, in <module>
>>>> exec compile(u'E = EllipticCurve_from_cubic(F,(_**sage_const_0
>>>> ,_sage_const_0 ,_sage_const_1 ))
>>>> File "", line 1, in <module>
>>>>
>>>> File
>>>> "/Applications/Sage-5.8-OSX-**64bit-10.8.app/Contents/**Resources/sage/local/lib/**python2.7/site-packages/sage/**schemes/elliptic_curves/**constructor.py",
>>>> line 575, in EllipticCurve_from_cubic
>>>> s = magma.eval(cmd)
>>>> File
>>>> "/Applications/Sage-5.8-OSX-**64bit-10.8.app/Contents/**Resources/sage/local/lib/**python2.7/site-packages/sage/**interfaces/magma.py",
>>>> line 539, in eval
>>>> raise RuntimeError, "Error evaluating Magma code.\nIN:%s\nOUT:%s"%(x,
>>>> ans)
>>>> RuntimeError: Error evaluating Magma code.
>>>> IN:aInvariants(MinimalModel(**EllipticCurve(Curve(Scheme(P, x^3 + 2*x*y^2
>>>> + 2*x*y*z + y^2*z + 2*x*z^2 + y*z^2)),P!(0, 0, 1))));
>>>> OUT:
>>>> In file
>>>> "/Users/victorsmiller/.sage/**temp/Victors_MacBook_Pro_2.**local/7371/interface/tmp7444",
>>>> line 1, column 110:
>>>> >> x^3 + 2*x*y^2 + 2*x*y*z + y^2*z + 2*x*z^2 + y*z^2)),P!(0, 0, 1))));
>>>> ^
>>>> Runtime error in elt< ... >: No permutation group context in which to
>>>> create cycle
>>>>
>>>>
>>>>
>>>>
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