Linda, Boyko's not the first to express this sentiment to you. Don't you
wonder what the mysterious appeal of @ is? If so, maybe a more rewarding (and
commensurately challenging) exercise for you this morning is:
translate from expressions without @ to ones with it
For example, you asked for a @-free translation of *:@+/ , and RE provided one.
What he didn't tell you is that *:@+/ is probably not what you're looking for
in the first place. Translating "square of the sum" into @-free J, we have ([:
*: +/). Now, can you (Linda, personally) find an equivalent verb, formulated
using @ ?
Good luck,
-Dan
PS: Even harder challenge. So hard that I'll open it up to everyone. Express
the original *:@+/ in English.
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Boyko Bantchev
Sent: Sunday, February 05, 2012 9:17 AM
To: Programming forum
Subject: Re: [Jprogramming] Another early morning exercise
On 5 February 2012 14:11, Linda Alvord <[email protected]> wrote:
> My goal has been to translate from expressions with �@ �to ones without it.
You also mentioned eliminating @ in another thread.
Why do you consider it important?
@ is the composition of functions � and is composition not the most
natural operation on functions that one could think of?
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