Do you see the typo now?
]op =: (i. 2 0 4) ; (i. 0 2) ; ,6
]op =: (i. 2 0 4) ; (i. 0 2) ; 6
-Dan
On 24 Feb 2011, at 19:45, Don Guinn wrote:
> Testing the lab "An Introductory Course in J" and noticed that the result
> was not the same in J6 and J7. Chapter 9 Section 10:
>
> J6 result:
>
> ]op =: (i. 2 0 4) ; (i. 0 2) ; ,6
> ┌────┬──┬─┐
> │ │ │6│
> └────┴──┴─┘
> ;op NB. Result of raze
> 0 0 0 0
>
> 0 0 0 0
>
> 0 0 0 0
>
> 6 0 0 0
> $ ;op NB. The shape of the empty result
> 4 1 4
>
> J7 Result:
>
> ]op =: (i. 2 0 4) ; (i. 0 2) ; 6 NB. The operand
> ┌────┬──┬─┐
> │ │ │6│
> └────┴──┴─┘
> ;op NB. Result of raze
> $ ;op NB. The shape of the empty result
> 4 0 4
> ----------------------------------------------------------------------
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