On 5/2/20 10:56 PM, Bradley Lucier wrote:
> APL seems to pun 1 x 1 arrays with scalar values (both ways), and SRFI
> 179 does not do that, so it's not terribly easy to reproduce the other
> example on that page.

All that punning is in the definition of A1 and B1 on page 121/135
(physical), and then

	If A1 and B1 are both vectors, return f /A1 g B1 .

means that if the two rewritten arguments are both vectors, return a
scalar (apply g pairwise and then reduce by f).

And it seems that the rest of the definition says how to calculate the
elements of Z (named Q), after choosing the right vectors X (from A1)
and Y (from B1) and computing the scalar

	Set Q to f /X g Y .

Brad