Thankyou for the responses.
The issue with / cropped up in a program fragment such as:
res =. combine / series_collection
'combine' returns a value but also produces side effects within files.
Whenever 'series_collection' was a one item array not much happened.
To demonstrate the current behaviour using the equivalence
u/y ↔ (u/k{.y) u (u/k}.y)
consider the following:
u =. 4 : ' x ; y'
y =. i.2 3
u/y
+-----+-----+
|0 1 2|3 4 5|
+-----+-----+
It is hard to imagine a different result for the expression:
(u/1{.y) u (u/1}.y)
+-----+-----+
|0 1 2|3 4 5|
+-----+-----+
thus leading to the conclusion that u/1{.y ↔ 0{y.
Perhaps the equivalence u/1{.y ↔ 0{y for non-empty y could be added to the
Vocabulary entry.
Regard
David
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