Hi,
Your ⎕IO is 0
⎕IO←1
Display (2 2 ⍴ 104 105 106 107) ⍳ (3 4 ⍴ 100+⍳100)
┏→━━┓
↓┏⊖┓ ┏⊖┓ ┏⊖┓ ┏→━━┓┃
┃┃0┃ ┃0┃ ┃0┃ ┃1 1┃┃
┃┗━┛ ┗━┛ ┗━┛ ┗━━━┛┃
┃┏→━━┓ ┏→━━┓ ┏→━━┓ ┏⊖┓ ┃
┃┃1 2┃ ┃2 1┃ ┃2 2┃ ┃0┃ ┃
┃┗━━━┛ ┗━━━┛ ┗━━━┛ ┗━┛ ┃
┃┏⊖┓ ┏⊖┓ ┏⊖┓ ┏⊖┓ ┃
┃┃0┃
Hi again,
just saw that this is documented in "info apl" section "3.17.2
Generalized dyadic ⍳".
Apparently your ⎕IO is 0 which makes it a bit
mysterious. Otherwise:
A←2 2 ⍴ 104
105 106 107
B←3 4 ⍴ 100
Hi Elias,
my best guess is that this is a missing RANK ERROR somewhere.
I will look into it.
Best Regards,
Jürgen
On 4/14/20 10:15 AM, Elias Mårtenson
wrote:
The ISO spec doesn't address what the
Just from staring at the result, it looks like the result of ⍺⍳⍵ has the
same shape as ⍵, and for each item of ⍵ it tells you either the coordinates
where it was found in ⍺, or ⍬ if it was not found. (Dunno what it does if ⍺
is a scalar, where ⍬ would be a valid coordinate.)
N.B. in Dyalog APL dya
