[Maxima] cacheing compiled integrand in quadpack functions

[Raymond Toy]

>>>>> "Stavros" == Stavros Macrakis <macrakis at gmail.com> writes:

    Stavros> the integrand as the key instead of the source form.
    Stavros> Translation-to-Lisp should be several orders of magnitude
    Stavros> faster than full compilation, which starts an external
    Stavros> process, etc.

I believe the external process only happens with gcl.  I think every
other Lisp we support has the compiler built-in so compiling is very
fast compared to gcl, even for cmucl which has a relatively slow
compiler. 

Ray