#6327: Document PARI's ellpow() function for CM curves
------------------------------+---------------------------------------------
Reporter: was | Owner: mvngu
Type: defect | Status: new
Priority: major | Milestone: sage-4.6
Component: doctest | Keywords: pari cm curve ellpow
Author: Jeroen Demeyer | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------------+---------------------------------------------
Changes (by newvalueoldvalue):
* author: => Jeroen Demeyer
* component: packages => doctest
* owner: tbd => mvngu
* keywords: => pari cm curve ellpow
Old description:
> What's up with this?
>
> {{{
> sage -t -long --optional devel/sage/sage/libs/pari/gen.pyx
> **********************************************************************
> File "/scratch/wstein/build/sage-4.0.2.alpha3/devel/sage-
> main/sage/libs/pari/gen.pyx", line 5801:
> sage: e.ellpow([0,0], I+1) # optional
> Exception raised:
> Traceback (most recent call last):
> File
> "/scratch/wstein/build/sage-4.0.2.alpha3/local/bin/ncadoctest.py", line
> 1231, in run_one_test
> self.run_one_example(test, example, filename, compileflags)
> File
> "/scratch/wstein/build/sage-4.0.2.alpha3/local/bin/sagedoctest.py", line
> 38, in run_one_example
> OrigDocTestRunner.run_one_example(self, test, example, filename,
> compileflags)
> File
> "/scratch/wstein/build/sage-4.0.2.alpha3/local/bin/ncadoctest.py", line
> 1172, in run_one_example
> compileflags, 1) in test.globs
> File "<doctest __main__.example_177[4]>", line 1, in <module>
> e.ellpow([Integer(0),Integer(0)], I+Integer(1)) # optional###line
> 5801:
> sage: e.ellpow([0,0], I+1) # optional
> File "gen.pyx", line 9170, in sage.libs.pari.gen._pari_trap
> (sage/libs/pari/gen.c:44129)
> raise PariError, errno
> PariError: sorry, (15)
> **********************************************************************
> 1 items had failures:
> 1 of 5 in __main__.example_177
> ***Test Failed*** 1 failures.
> For whitespace errors, see the file /home/wst
> }}}
New description:
The {{{ellpow}}} function from PARI also works for CM curves, but it is
documented that it doesn't.
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6327#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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