Consider the following code:
*A←3 4⍴1 3 2 0 2 1 0 1 4 0 0 2B←4 2⍴4 1 0 3 0 2 2 0Q←{⍺/⍵}
(A≠0) +.Q B*
My reading (and implementation) of the ISO spec suggests the output should
be the following:
┏━━━┓
┃4 6┃
┃6 4┃
┃6 1┃
┗━━━┛
However, in GNU APL I get this:
┏→━━┓
↓┏⊖┓ ┏⊖┓┃
┃┃0
On NARS2000.64 it gives:
⎕fmt (A≠0) +.Q B
┌2───┐
3┌0─┐┌0─┐│
││ 0││ 0││
│└~─┘└~─┘│
││
│┌0─┐┌0─┐│
││ 0││ 0││
│└~─┘└~─┘│
││
│┌0─┐┌0─┐│
││ 0││ 0││
│└~─┘└~─┘2
└∊───┘
so, the same thing as gnu-apl
Xtian.
On 2022-01-25 23:25, Elias Mårtenson wrote:
Consider the following
Dyalog as well. However, both my implementation (KAP) and ngn/APL gives
what I consider the expected result.
Regards,
Elias
On Wed, 26 Jan 2022 at 12:37, Christian Robert
wrote:
> On NARS2000.64 it gives:
>
> ⎕fmt (A≠0) +.Q B
> ┌2───┐
> 3┌0─┐┌0─┐│
> ││ 0││ 0││
> │└~─┘└~─┘│
> ││
