Follow me:
+: (hook +:)(hook +:)
(+: +:) +:
((+: +:) +:) y
y (+: +:) +: y
2 3 (+: +:) +: 2 3
2 3 (+: +:) 4 6
2 3 +: 8 12
|domain error
| 2 3 +:8 12
ah! dyadic +: needs binary arguments
0 1 +: 1 0
0 0
... and the dyadic case works because it ends up with:
4 + 8 12
12 16
On 29-04-14 15:09, 'Pascal Jasmin' via Programming wrote:
hook =: 2 : ('([: u v)';':';'(u v)')
no problems with dyad:
4 + (hook +:)(hook +:) 2 3
12 16
but why does this not work?
+: (hook +:)(hook +:) 2 3
|domain error
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Met vriendelijke groet,
@@i = Arie Groeneveld
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