#9174: cygwin: robert miller's 2-descent is completely broken on cygwin
----------------------------+----------------------------------------------
Reporter: was | Owner: tbd
Type: defect | Status: closed
Priority: major | Milestone: sage-duplicate/invalid/wontfix
Component: porting: | Resolution: worksforme
Cygwin | Merged in:
Keywords: | Reviewers: Karl-Dieter Crisman
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
----------------------------+----------------------------------------------
Description changed by chapoton:
Old description:
> {{{
>
> sage -t
> "devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx"
> **********************************************************************
> File
> "/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
> line 1093:
> sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
> Expected:
> 1
> Got:
> 0
> **********************************************************************
> File
> "/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
> line 1098:
> sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
> Expected:
> 2
> Got:
> 0
> **********************************************************************
> File
> "/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
> line 1102:
> sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
> Expected:
> 3
> Got:
> 2*log(3)/log(2) - 2
> **********************************************************************
> File
> "/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
> line 1195:
> sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
> Expected:
> 1
> Got:
> 0
> **********************************************************************
> File
> "/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
> line 1198:
> sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
> Expected:
> 2
> Got:
> 0
> **********************************************************************
> File
> "/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
> line 1201:
> sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
> Expected:
> 3
> Got:
> log(3)/log(2) - 1
> **********************************************************************
> 2 items had failures:
> 3 of 30 in __main__.example_18
> 3 of 11 in __main__.example_19
> ***Test Failed*** 6 failures.
> For whitespace errors, see the file
> /home/wstein/.sage//tmp/.doctest_descent_two_isogeny.py
> [29.1 s]
> }}}
New description:
{{{
sage -t "devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx"
**********************************************************************
File
"/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
line 1093:
sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
Expected:
1
Got:
0
**********************************************************************
File
"/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
line 1098:
sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
Expected:
2
Got:
0
**********************************************************************
File
"/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
line 1102:
sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
Expected:
3
Got:
2*log(3)/log(2) - 2
**********************************************************************
File
"/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
line 1195:
sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
Expected:
1
Got:
0
**********************************************************************
File
"/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
line 1198:
sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
Expected:
2
Got:
0
**********************************************************************
File
"/home/wstein/sage-4.4.3/devel/sage/sage/schemes/elliptic_curves/descent_two_isogeny.pyx",
line 1201:
sage: log(n1,2) + log(n1_prime,2) - 2 # the rank
Expected:
3
Got:
log(3)/log(2) - 1
**********************************************************************
2 items had failures:
3 of 30 in __main__.example_18
3 of 11 in __main__.example_19
***Test Failed*** 6 failures.
For whitespace errors, see the file
/home/wstein/.sage//tmp/.doctest_descent_two_isogeny.py
[29.1 s]
}}}
--
--
Ticket URL: <http://trac.sagemath.org/ticket/9174#comment:11>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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