On Tuesday, June 14, 2016 at 10:18:01 AM UTC+2, Benjamin Hackl wrote:
>
> This seems to come from this (7.2.beta6):
>
> sage: (-0.9).log_gamma()
> NaN
>
No, this is independent and even documented:
To get evaluation of input for which gamma
is negative and the ceiling is even, we must
explicitly make the input complex. This is
a known issue, see :trac:`12521`::
sage: log_gamma(-2.1)
NaN
sage: log_gamma(CC(-2.1))
1.53171380819509 + 3.14159265358979*I
The beta() issue works in 7.3beta4 so where is the problem exactly?
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