Surprise!
(+/" 2) a
4 6 8 10
20 22 24 26
36 38 40 42
Linda
-----Original Message-----
From: programming-boun...@jsoftware.com
[mailto:programming-boun...@jsoftware.com] On Behalf Of Kip Murray
Sent: Tuesday, December 06, 2011 3:50 AM
To: Programming forum
Subject: Re: [Jprogramming] Turkey Roll - Challenge 2
Here is a puzzle. Not wanting to explain was a reason for allowing in
Simple J only one conjunction (rank) which I regarded as essential.
However as a practical matter I like Henry's policy. We should not pay
too much attention to matters unlikely to arise, and @: is a nice way of
combining a receiver and sender.
] a =: i. 3 2 4
0 1 2 3
4 5 6 7
8 9 10 11
12 13 14 15
16 17 18 19
20 21 22 23
([: |: +/ " 2) a
4 20 36
6 22 38
8 24 40
10 26 42
(|: @: +/ " 2) a
4 6 8 10
20 22 24 26
36 38 40 42
On 12/5/2011 9:08 PM, Henry Rich wrote:
...
>
> Let us use [: u v or u@:v as we like, and specify a rank when we
> need one.
>
> Henry Rich
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