I am getting a doctest failure in src/doc/en/bordeaux_2008/elliptic_curves.rst
and I wonder if others can confirm or deny. You should have
sage: C = CremonaDatabase()
sage: C[37]
{'allcurves': {'a1': [[0, 0, 1, -1, 0], 1, 1],
'b1': [[0, 1, 1, -23, -50], 0, 3],
'b2': [[0, 1, 1, -1873, -31833], 0, 1],
'b3': [[0, 1, 1, -3, 1], 0, 3]}}
but with 6.4.beta4 + the optional larger database_cremona_ellcurve
installed I get something different because C[37] now has many more
fields and displays different ones first. It would be sensible to
replace the doctest as is with
sage: C[37]['allcurves']
{'a1': [[0, 0, 1, -1, 0], 1, 1],
'b1': [[0, 1, 1, -23, -50], 0, 3],
'b2': [[0, 1, 1, -1873, -31833], 0, 1],
'b3': [[0, 1, 1, -3, 1], 0, 3]}
I think this will have been caused by the new doctest output
formatting recently merged.
John
On 28 September 2014 13:46, Volker Braun <[email protected]> wrote:
> This is some more fallout from #16858. Jeroen, do you already have a
> followup ticket for numerical noise?
>
>
>
> On Saturday, September 27, 2014 9:51:46 PM UTC+1, Justin C. Walker wrote:
>>
>>
>> On Sep 27, 2014, at 07:51 , Volker Braun wrote:
>>
>> > As usual, get the updated "develop" git branch. Alternatively,
>> > self-contained source tarball is here:
>> >
>> > http://boxen.math.washington.edu/home/release/sage-6.4.beta4.tar.gz
>>
>> Built from the tarball on two OS X systems (10.6.8/Dual 6-core Xeons;
>> 10.9.5/Quad-core Core i7). Build completed successfully on each.
>>
>> On 10.9.5, the tests ('pteestlong') completed w/o problems.
>> On 10.6.8, there was one glitch,
>> sage -t --long --warn-long 84.6
>> src/sage/rings/polynomial/polynomial_element.pyx
>> # 3 doctests failed
>>
>> The failures are repeatable.
>>
>> viz:
>>
>> File "src/sage/rings/polynomial/polynomial_element.pyx", line 5345, in
>> sage.ring
>> s.polynomial.polynomial_element.Polynomial.roots
>> Failed example:
>> ((x^3 -1)).roots()
>> Expected:
>> [(0.9999999999999998, 1)]
>> Got:
>> [(1.0000000000000002, 1)]
>> **********************************************************************
>> File "src/sage/rings/polynomial/polynomial_element.pyx", line 5347, in
>> sage.ring
>> s.polynomial.polynomial_element.Polynomial.roots
>> Failed example:
>> ((x^3 -1)).roots(multiplicities=False)
>> Expected:
>> [0.9999999999999998]
>> Got:
>> [1.0000000000000002]
>> **********************************************************************
>> File "src/sage/rings/polynomial/polynomial_element.pyx", line 5453, in
>> sage.ring
>> s.polynomial.polynomial_element.Polynomial.roots
>> Failed example:
>> for (fld_in, fld_out) in flds:
>> x = polygen(fld_in)
>> f = x^3 - fld_in(2)
>> x2 = polygen(fld_out)
>> f2 = x2^3 - fld_out(2)
>> for algo in (None, 'pari', 'numpy'):
>> rts = f.roots(ring=fld_out, multiplicities=False)
>> if fld_in == fld_out and algo is None:
>> print fld_in, rts
>> for rt in rts:
>> assert(abs(f2(rt)) <= 1e-10)
>> assert(rt.parent() == fld_out)
>> Expected:
>> Real Field with 53 bits of precision [1.25992104989487]
>> Real Double Field [1.2599210498948734]
>> Real Field with 100 bits of precision [1.2599210498948731647672106073]
>> Complex Field with 53 bits of precision [1.25992104989487,
>> -0.62996052494743
>> ... - 1.09112363597172*I, -0.62996052494743... + 1.09112363597172*I]
>> Complex Double Field [1.259921049894873, -0.6299605249474364 -
>> 1.09112363597
>> 17214*I, -0.6299605249474365 + 1.0911236359717214*I]
>> Complex Field with 100 bits of precision
>> [1.2599210498948731647672106073, -0
>> .62996052494743658238360530364 - 1.0911236359717214035600726142*I,
>> -0.6299605249
>> 4743658238360530364 + 1.0911236359717214035600726142*I]
>> Got:
>> Real Field with 53 bits of precision [1.25992104989487]
>> Real Double Field [1.259921049894873]
>> Real Field with 100 bits of precision [1.2599210498948731647672106073]
>> Complex Field with 53 bits of precision [1.25992104989487,
>> -0.62996052494743
>> 7 - 1.09112363597172*I, -0.629960524947437 + 1.09112363597172*I]
>> Complex Double Field [1.2599210498948727, -0.6299605249474364 -
>> 1.0911236359
>> 717214*I, -0.6299605249474362 + 1.0911236359717211*I]
>> Complex Field with 100 bits of precision
>> [1.2599210498948731647672106073, -0
>> .62996052494743658238360530364 - 1.0911236359717214035600726142*I,
>> -0.6299605249
>> 4743658238360530364 + 1.0911236359717214035600726142*I]
>> **********************************************************************
>>
>> Justin
>>
>> --
>> Justin C. Walker, Curmudgeon at Large
>> Institute for the Absorption of Federal Funds
>> -----------
>> Like the ski resort full of girls hunting for husbands
>> and husbands hunting for girls, the situation is not
>> as symmetrical as it might seem.
>> - Alan MacKay
>> --
>>
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