On 11/27/25 20:53, Grégory Vanuxem wrote:
Relatively difficult to explain for a non-English speaker...
I'm so sorry that I'm German speaking... ;-)
Yes, one my first principal concern is that CL structures are too
much used.
I am already lost here.
In principle you could implement SPAD without ever touching any LISP.
Lisp is an implementation detail. Aldor is very much like SPAD, but
there is C underneath.
Take FRAC(INT):
(1) -> 1/2
1 (1) - 2 (2) -> (2) -> % pretend SExpression
(2) (1 . 2) (3) -> TYPE_-OF(1/2)$Lisp
Implementation detail. I bet in Aldor you wouldn't be able to do this,
since at runtime the fraction is certainly not stored as a lisp object.
That said, yes, in FriCAS, the objects are eventually represented in
Lisp form, since this is the underlying language. If you call this the
"tight connection", then yes, it naturally is.
I need a CL class (<JLREF... >) to GC-it in Julia when it's CL GC-ed
in FriCAS.
Sorry, I must quit here. That is beyond my understanding. I have no idea
how you connect FriCAS with Julia. Obviously, you do it on a lisp level,
Moreover I have some difficulties, my fault, in creating them. All
the POLYs stuff is somewhat a big piece of code, and for sure well
done, but I am not in the head of the code's writers.
As far as I remember, you can SPADCALL any function from FriCAS algebra.
Maybe a bit cumbersome, but with that you should be able to construct
polynomials.
Ralf
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