Hi.
I'm at Chapter 12 of J for C Programmers and Henry was explaining verb
sequences.
You see, I have never ever used @: or @ in my years of use of J so this
is a bit confusing for me.
Like in the example on page 111 where it defines:
]a=: 1 2 3; 4 5; 6 7 8
+-----+---+-----+
|1 2 3|4 5|6 7 8|
+-----+---+-----+
The requirement was remove the first box and just get the first items of
the succeeding boxes. The solution that was provided was:
}.@:({.@>) a
4 6
Since I've don't use "Verb Sequences", my solution was:
}. {. "1 > a
4 6
I tried doing the other samples and I can still come up with solutions
without using the @ and @: symbols.
So I am wondering if anybody has good examples where I would absolutely
need to use verb sequencing so I can compromise with myself when to
properly use the symbols.
Thanks.
r/alex
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