Yes, after reading my own description of my fascination with tacit I thought I
sounded like a prick, so I'm trying to use explicit more, and it is nice: still
concise, but easier to parse.
One thing that irks me is the J solutions posted on Rosetta Code. Here's the
one for Pythagorean triples.
trips=:3 :0
'm n'=. |:(#~ 1 = 2 | +/"1)(#~ >/"1) ,/ ,"0/~ }. i. <. %: y
prim=. (#~ 1 = 2 +./@{. |:) (#~ y >: +/"1)m (-&*: ,. +:@* ,. +&*:) n
/:~ ; <@(,.~ # {. 1:)@(*/~ 1 + y i.@<.@% +/)"1 prim
)
Impressive, but isn't Rosetta Code a place more for showing off how elegant
your language can be, rather than how incomprehensible?
On 11/28/2017 11:45 PM, Rob Hodgkinson wrote:
Further on this comment Andrew, don’t get bogged down in the topic of tacit,
you can get a lot of benefit form using J in native or explicit form and leave
tacit for later.
I have been programming in array languages for many years and also confess to
being mesmerised by some of the tacit expressions which I do not find
immediately readable at all, especially when peppered with ASCII like
punctuation.
Dissect certainly helps, but coding tacit for tacit’s sake is not something I
get hung up about, you can derive huge benefit without it, but it can be nice
to use when it becomes more familiar to you, as people show here when they
create a group of small compact verb trains (or phrases) which together make a
compact solution.
Rob Hodgkinson
On 29 Nov 2017, at 8:38 am, Andrew Dabrowski
<[email protected]><mailto:[email protected]> wrote:
As a beginner I find it impossible to parse a moderately sized tacit
expression. No doubt one gets better at this, but like all computer languages,
the one dimensional space it lives in seems to confound any attempts to
represent mathematical ideas directly.
A computer language based on mathematical notation sounds like a cool but
impractical idea. It would to have to be 2 dimensional, as in fact math
notation is.
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