[HN Gopher] Random walk in 2 lines of J
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Random walk in 2 lines of J
Author : max_
Score : 22 points
Date : 2022-10-15 05:30 UTC (17 hours ago)
(HTM) web link (asindu.xyz)
(TXT) w3m dump (asindu.xyz)
| civilized wrote:
| > One misconception is that languages like J are in the same
| caliber as Brain F**k and other esoteric or golfing languages
| which are mostly for recreational programming. Languages like J
| however were designed to be a replacement to traditional maths
| notation - an interface for thinking or a tool of thought as
| their inventor Kenneth E. Iverson called them in his Turing Award
| lecture.
|
| Does it actually succeed though? The author aims to show how J
| helps understand a random walk, but from where I stand, it just
| looks like a regex or something. I don't see what the insight's
| supposed to be.
| klyrs wrote:
| That is more lines of J than I'm accustomed to.
| eimrine wrote:
| I love J
| kleene_op wrote:
| I remember looking up how people solved the problems on project
| Euler and there would always be a J answer for the first
| problems taking less than a few dozens characters.
|
| At the time my own answers in C would take dozens or even
| hundred of lines. I didn't know J existed and thought people
| posting those absurdly small solutions were just trolling or
| running a scam.
|
| Man was I left dumbfounded when I learned this thing actually
| runs and produces the correct answers.
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