[Jprogramming] vocabulary question concerning / (insert)

[Henry Rich]

I agree that the definition is incomplete.

If y has only one item, the result of u/ y is that item, for any u.



It makes sense as

(Item -#y) u ... u (Item _2) u (Item _1)

where if there is no item _2, the sequence ends with item _1.

Henry Rich 

> -----Original Message-----
> From: programming-bounces at jsoftware.com 
> [mailto:programming-bounces at jsoftware.com] On Behalf Of david alis
> Sent: Saturday, September 08, 2007 7:55 AM
> To: Programming forum
> Subject: [Jprogramming] vocabulary question concerning / (insert)
> 
> I recently tripped over the behaviour of / when applying it 
> to a one item
> argument.
> I consulted the vocabulary which prompts me to ask:
> 
> Does the entry for / (insert)
> 
> http://www.jsoftware.com/help/dictionary/d420.htm
> 
> describe the behaviour of u/y when y has one item?
> 
> 
> Example (using the constant function 0: )
> ($;#)      0:/i.1 3 4 5  NB. one item, which seems unexplained
> +-----+-+
> |3 4 5|3|
> +-----+-+
> ($;#)      0:/i.2 3 4 5 NB. two items produce the result described
> ++-+
> ||1|
> ++-+
> 
> 
> Regards
> David
> j601/2006-11-17/17:05 J64
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