<https://lh5.googleusercontent.com/-aq8_egCY1YQ/U-oLHGBqs8I/AAAAAAAAAPU/_9nUTzYdSV4/s1600/tmp_HT3Lpm.png>
This I don't understand :
sage: var("z")
z
sage: points(map(lambda x:x[0].N(),(z^20+1).roots()), figsize=4,
aspect_ratio=1)
[ Gives the expected result (enclosed) ]
sage: points(map(lambda x:x[0].N(),(z^20-1).roots()), figsize=4,
aspect_ratio=1)
---------------------------------------------------------------------------
IndexError Traceback (most recent call last)
<ipython-input-8-9d1343466bbc> in <module>()
----> 1 points(map(lambda
x:x[Integer(0)].N(),(z**Integer(20)-Integer(1)).roots()),
figsize=Integer(4), aspect_ratio=Integer(1))
/usr/local/sage-6.3/local/lib/python2.7/site-packages/sage/plot/point.pyc
in point(points, **kwds)
312 except (ValueError, TypeError):
313 from sage.plot.plot3d.shapes2 import point3d
--> 314 return point3d(points, **kwds)
315
316 @rename_keyword(color='rgbcolor', pointsize='size')
/usr/local/sage-6.3/local/lib/python2.7/site-packages/sage/plot/plot3d/shapes2.pyc
in point3d(v, size, **kwds)
1042 pass
1043
-> 1044 A = sum([Point(z, size, **kwds) for z in v])
1045 A._set_extra_kwds(kwds)
1046 return A
/usr/local/sage-6.3/local/lib/python2.7/site-packages/sage/plot/plot3d/shapes2.pyc
in __init__(self, center, size, **kwds)
684 """
685 PrimitiveObject.__init__(self, **kwds)
--> 686 self.loc = (float(center[0]), float(center[1]),
float(center[2]))
687 self.size = size
688 self._set_extra_kwds(kwds)
/usr/local/sage-6.3/local/lib/python2.7/site-packages/sage/rings/complex_number.so
in sage.rings.complex_number.ComplexNumber.__getitem__
(build/cythonized/sage/rings/complex_number.c:5225)()
IndexError: i must be between 0 and 1.
Seems to be a problem with points().
Advice ? Ticket to create ?
HTH,
--
Emmanuel Charpentier
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