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Lapwing482
Lapwing482
11:12 PM
Found a behaviour I don't understand:

{⎕←⍵}¨⍬
0

If ⍬ is an empty vector, why does it behave as though it's got a 0 in it?
 
Adám
Adám
@Lapwing482 ¨ has to call its operand once to determine the type of result, so the operand is called on a prototype element.
 

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