Thanks, Roger. So does the following computation reflect the order of
calculation in row-at-a-time g"_1 before the f/ (that's a J /) ?
10 100 1000 <@:*"_1 i.3 4
+----------+---------------+---------------------+
|0 10 20 30|400 500 600 700|8000 9000 10000 11000|
+----------+---------------+---------------------+
And does the following calculation reflect row-at-a-time inner product
with a sort of interleaving?
(+/@(2&{.),(2&}.))^:_]10 100 1000 (*"_1) i.3 4
8400 9510 10620 11730
>
> g[0] in APL is g"_1 in J.
>
>
>
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