> > How about this: use "nsum" instead of "sum" (Mathematica uses NSum vs
> > Sum).
> >
> Yes this could be a good idea.
> > Or do this:
> >
> > Simpsum:Levin, as a third option, other than true and false.
> >
> This I don't really like. Numerical evaluation is not the same as
> simplification.
But in maxima those two things are strongly related. numer actually
is a simplifier flag:
(%i1) simp:false;
(%o1) false
(%i2) sin(1), numer;
(%o2) sin(1)
(%i3) sin(1), numer,simp;
(%o3) .8414709848078965
When I noticed this first, while playing with simplification vs. evaluation,
I was quite puzzled, but I think now I see why this actually is a job for
the simplifier. I guess somebody should write a book about maxima, which
handles such concepts in detail...
Regards,
Harald