Re: some dilog values are complex instead of being real

["Karim Belabas" <Karim.Belabas@math.u-bordeaux1.fr>]

* Vincent Lefevre [2007-10-02 10:15]:
> With Pari 2.3.2:
> 
> ? dilog(-1)
> %1 = -0.8224670334241132182362075834 + 9.136285398175292265776793780 E-29*I
> 
> but the value should be a real number. I suppose that the imaginary
> term is due to a rounding error, in which case it should be zeroed
> if one knows that the mathematical result is a real number.
> 
> Note that due to this problem, the plot function fails with:
>   *** plot: impossible assignment t_COMPLEX --> t_REAL.

Indeed. Fixed in CVS [ development branch ]

Thanks !

    K.B.
-- 
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