#8869: float(CDF(1)) should return 1.0, not throw an error
--------------------------------+-------------------------------------------
Reporter: jason | Owner: AlexGhitza
Type: defect | Status: new
Priority: major | Milestone: sage-4.4.1
Component: basic arithmetic | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
--------------------------------+-------------------------------------------
Right now, we have the following behavior:
{{{
sage: float(CC(1.0))
1.0
sage: float(CDF(1.0))
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/home/jason/<ipython console> in <module>()
/home/jason/sage/local/lib/python2.6/site-
packages/sage/rings/complex_double.so in
sage.rings.complex_double.ComplexDoubleElement.__float__
(sage/rings/complex_double.c:6532)()
TypeError: can't convert complex to float; use abs(z)
sage: float(complex(1.0))
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/home/jason/<ipython console> in <module>()
TypeError: can't convert complex to float
}}}
As robertwb and was voted (on
http://trac.sagemath.org/sage_trac/ticket/5400#comment:12 and on sage-
devel), we should make float conversion succeed if the imaginary part is
zero.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8869>
Sage <http://www.sagemath.org>
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