#5779: _fast_floats_'s pow returns garbage for non-integral powers left of zero
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Reporter: mabshoff | Owner: robertwb
Type: defect | Status: new
Priority: critical | Milestone: sage-3.4.1
Component: solaris | Keywords:
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Comment(by mabshoff):
Hmm, the c library is involved here as shown by this on Solaris:
{{{
-bash-3.00$ ./sage
----------------------------------------------------------------------
| Sage Version 3.4.1.rc1, Release Date: 2009-04-05 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
Loading Sage library. Current Mercurial branch is: main-sol
sage: f=x^(1/3)
sage: f._fast_float_(x)(-1.2)
-NaN
}}}
I am not so sure what is going on or if this is the real issue. I will
talk to RobertWB in person about this on the next occasion.
Cheers,
Michael
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5779#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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