On Fri, Sep 10, 2021 at 04:20:04PM +0200, Ralf Hemmecke wrote:
> >> https://mathics.org/
> > I wonder what impressed you? I recently looked at available parsers
> > for Mathematica syntax. In the process also took a quick look at
> > Matics. I was unimpressed.
> I am not saying that Mathics is better than FriCAS. Probably not.
> However, the website looks more professional than that of FriCAS.
> (I bet that more people use other browsers than Lynx.)
> Do we have descriptions of all the Graphics demos in
? I even wonder whether
> FriCAS can do them at all.
ATM we do not have bar charts and pie charts, user would have to
synthetise them from primitives. Few others are superposition
of two operations.
> Number of active developers.
> As far as I can feel, FriCAS is well known for its integration
> capabilities and thus used as a subprogram in FriCAS, but is someone
> using it as a general purpose computer algebra system? Do you see the
> latter as a goal for FriCAS?
Well, I do not only develop FriCAS, I also use it. I find it better
than open source alternatives. Most what I do could be done using
other systems. But I think not all. For example, I fequently
use equation solving. I Maxima list from time to time come
questions "those eqations take too mauch time or run out of
memeory, what can be done to solve them faster (or at all)".
I have tried few such things and they were no problem for
FriCAS. Most recent example was:
eq1 := N = a1 + b1 * x + c1 * y + d1 * x * y + e1 * x^2 + f1 * y^2
eq2 := P = a2 + b2 * x + c2 * y + d2 * x * y + e2 * x^2 + f2 * y^2
Maxima folks were unable to compute anwer and "explained" that
this system is too complicated and one should not expect answer
from computer. In FriCAS on my machine it takes 9.5 seconds
(answer takes several screens). In the past I did some
experiments with Sympy and largish linear systems with symbolic
coefficients which worked fine in FriCAS were too hard for Sympy.
Sage has some very good specialized solvers, but AFAIK once things
get general enough it sends problems to Maxima or Sympy.
Of course, there things missing from FriCAS, but IMO FriCAS
is pretty strong as "general purpose CAS".