Re: [open-axiom-devel] [fricas-devel] Re: [fricas-devel] Re: iterators and cartesian product.
Francois Maltey <[email protected]> 31 Oct 2007 20:38:43 +0100
| Newsgroups | gmane.comp.mathematics.axiom.general,gmane.comp.mathematics.open-axiom.devel |
|---|---|
| Message-ID | <[email protected]> |
Hello, again > It's ok, but way should we require the dummy variable 't' when we can > operate directly on functions with the higher-order function > 'product'? I think > > t +-> [|wholePart t, sin t|] > > is just a slightly awkward way to write: > > product(wholePart,sin) Is it the reason why you want a ?function? product (A->X, A->Y, ...) ? > > > It's a good thing that record will remain mutable and the other > > structure product won't be mutable. So there is no ambiguity. > > > > Maybe there should be both 'Record' and 'Record!' where as usual the ! > denotes mutability? > I'm mot sure : mathematics don't speak about record but product or << couples or triplets or n-uplet in French >> or Tupple ? And Record! is the most logic, but perhaps not usable because everybody think << Record >>.