[Jprogramming] @ and @: (atop and at)

[Linda A Alvord]

Henry, Your explanation of how the conjunctions are parsed helped make the tree diagrams make more sense. I gave up my idea.

 

   f=: 13 :'(%@(%:@(-@(+@*:))))y'

   5!:4 <'f'

      ┌─ %                   

── @ ─┤     ┌─ %:            

      └─ @ ─┤     ┌─ -       

            └─ @ ─┤     ┌─ + 

                  └─ @ ─┴─ *:

   g=: 13 :'%@%:@- at +@*:y'

   5!:4 <'g'

                        ┌─ % 

                  ┌─ @ ─┴─ %:

            ┌─ @ ─┴─ -       

      ┌─ @ ─┴─ +             

── @ ─┴─ *:                  

   f 4

0j_0.25

   0j_0.25

0j_0.25

   g 4

0j_0.25

   

Linda

 

-----Original Message-----
From: Programming [mailto:programming-bounces at forums.jsoftware.com] On Behalf Of Brian Schott
Sent: Friday, January 22, 2016 3:57 PM
To: Programming forum
Subject: Re: [Jprogramming] @ and @: (atop and at)

 

Henry, I think I get it now.

Thanks very much for that long detailed explanation of parsing vs execution. It helped a lot.

Also, the examples you gave earlier of dissecting #@> 'a';1 2 and #@:>

'a';1 2 really helped. (Eventually I changed 1 2 to 20 30 so that the 1 and

2 did not get confused with the ranks 1 and 2.) Although I must admit that it was mostly in their contrast that I understood the dissects, not separately. I am still having trouble with all of the richness of information in dissects. It's not a problem with dissect, it's me.

 

 

--

(B=)

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