On Sep 22, 9:47 pm, The_Fool <masterfu...@gmail.com> wrote:
> I managed to create the symbolic polygamma function as psi(order,x).
> Psi is limited in what it can do, though. I can get it to grab
> special values from Maxima's or GiNaC's table, but I still cannot get
> it to approximate any value of any integer order. It can be
> differentiated, but not integrated. It seems that this is a
> limitation of Maxima and GiNaC, not Sage.
Can you create a special _integral_ (or _integrate_, I forget which)
method to do this? You can also ask for it to be LaTeXed
appropriately, etc.; there are lots of good examples in the files
mentioned earlier in this thread, though if Ginac knows about it,
there may already be a representation. See also the upgraded Pynac
package, trac ticket #6993, which you may want to work off of.
- kcrisman
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