Re: RFC 90 (v1) Builtins: zip() and unzip()

[Jarkko Hietaniemi]

I simply can't get over the feeling that the proposed
zip/unzip/partition functions are far too specialized/simple, and that
something more general-purpose in the order of pack/unpack (with the
transformation spec encoded in a template) for lists would be preferable.
When someone said that matrix/unmatrix would be better I did not find
that to be a joke: on the contrary, what we are talking here would be
a mapping from n-dim arrays to p-dim arrays.  Just simply thinking in
1-dim lists/arrays doesn't cut it.

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