Final remarks.

Remaining things to do:

• adapt and integrate the polynomial division routines of alg48 for speed,
• rewrite the Gauß reduction to include the Bareiss method,
• extend the Risch algorithm to multiples exponentials, and return an unevaluated integrals when there is no closed form,
• improve the factorization algorithm (Berlekamp method over $Z\!\!\!Z [i]$).
• ...

I will probably build a contrib directory (or library) if I have sufficient material to do it, your RPL and SysRPL programs are welcomed. Otherwise, I would say that Erable over the Saturn architecture is almost finished since we have probably reached the microprocessor limits. Anyway, it is certainly sufficient to help maths students in their studies, which was my first aim.

I will probably switch to another project like working on C(++) on a fast CPU (it would be interesting to have a sysrpl implementation written in C(++), I would only have to rebuild a KERNEL.LIB to have a competitive Erable!).