Subject: problem with recursive functions (erratum)
From: Stavros Macrakis
Date: Mon, 9 Oct 2006 09:49:52 -0400
On 10/9/06, Norbert Vegh <jack at omega.telia.net> wrote:
>
> Thanks for your help, that is what I was looking for. I did not know that
> the
> f(d,x) syntax would work with recursive definitions. I found the maxima
> documentation a bit tricky.
> In my case however the f[d] form with 'subst' is better. I have to work
> with
> high dimensional matrices, it is a big gain to have it calculated only
> once.
I don't know what calculation exactly you are performing, so I can't give
detailed advice. Constructing the lambda-expressions is probably *not* the
most efficient way to do anything. More likely to help would be using the
memo'izing recursive form f[d,x]:=...
Maybe you could tell us more about your real problem and we can help there.
-s