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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