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 code:
*
*
* A←3 4⍴1 3 2 0 2 1 0 1 4 0 0 2
B←4 2⍴4 1 0 3 0 2 2 0
Q←{⍺/⍵}
(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┃ ┃0┃┃
┃┗━┛ ┗━┛┃
┃┏⊖┓ ┏⊖┓┃
┃┃0┃ ┃0┃┃
┃┗━┛ ┗━┛┃
┃┏⊖┓ ┏⊖┓┃
┃┃0┃ ┃0┃┃
┃┗━┛ ┗━┛┃
┗∊━━━━━━┛
Which one is correct?
Regards,
Elias
