I don't know if you redefined fib, but in the
commercial macsyma the time for a:fib(...) on my system
is about 57 seconds.
It is still computing the GCD, after a few minutes.
and GCL/Xmaxima 5.5 ran out of bignum stack space.
So I suspect your comments are really about bignum
implementation in CLISP, and not about lisp generally.
Since lisps can be attached to the
"world's best" bignum packages, in principle lisp
should not be slow. In practice, attaching
such bignum packages can be very delicate.
Pedro Fortuny Ayuso wrote:
>
> FWIW, I think this shows that arithmetic (division...) with lisp is not so bad
> compared with pari (although obviously this is
>