#18386: polylog quirks
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Reporter: rws | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.7
Component: symbolics | Resolution:
Keywords: pynac special | Merged in:
Authors: | Reviewers:
Report Upstream: Reported upstream. Developers | Work issues:
acknowledge bug. | Commit:
Branch: | Stopgaps:
Dependencies: |
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Changes (by rws):
* upstream: N/A => Reported upstream. Developers acknowledge bug.
Old description:
> The `polylog` function (from Pynac) treats `1.0` like `1` and does not
> immediately `evalf` with some numeric arguments.
> {{{
> sage: polylog(2,1)
> 1/6*pi^2
> sage: polylog(2.,1)
> 1.64493406684823
> sage: polylog(2,1.0)
> 1/6*pi^2
> sage: polylog(2,0.9)
> polylog(2, 0.900000000000000)
>
> }}}
New description:
The `polylog` function (from Pynac) treats `1.0` like `1` and does not
immediately `evalf` with some numeric arguments.
{{{
sage: polylog(2,1)
1/6*pi^2
sage: polylog(2.,1)
1.64493406684823
sage: polylog(2,1.0)
1/6*pi^2
sage: polylog(2,0.9)
polylog(2, 0.900000000000000)
}}}
https://github.com/pynac/pynac/issues/48
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Ticket URL: <http://trac.sagemath.org/ticket/18386#comment:1>
Sage <http://www.sagemath.org>
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