Dan Gildea added at least part of the Gruntz method to Maxima. The
gruntz function isn't documented, so I'm not sure that it is intended
to be a user-level function:
(%i12) gruntz(x * log(log(x)),x,0, 'minus);
(%o12) 0
Maybe limit even calls gruntz on occasion. But gruntz has trouble with
limits of psi:
(%i13) gruntz(psi[0](x),x,inf, 'minus);
taylor: mrv not implemented
psi[0](x)
Barton
Richard Fateman <fateman at cs.berkeley.edu> wrote on 08/27/2009 04:35:38 PM:
> [image removed]
>
> Re: [Maxima] limits of psi
>
> Richard Fateman
>
> to:
>
> Dieter Kaiser
>
> 08/27/2009 04:35 PM
>
> Cc:
>
> Barton Willis, "maxima at math.utexas.edu"
>
> Have you, or someone, looked at the thesis by Dominik Gruntz?
>
> Dieter Kaiser wrote:
> > Am Donnerstag, den 27.08.2009, 10:54 -0500 schrieb Barton Willis:
> >
> >> It would be great if Maxima could determine the limits of the digamma
> >> function. I have some code for summation that would benefit:
> >>
>