lexi-lambda changed the topic of #racket to: Racket v7.5 has been released: https://blog.racket-lang.org/2019/11/racket-v7-5.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org
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<cosme> right, i like sexps. but i would give it a try.
<winny> mosh winny.tech
<winny> mosh winny.tech
<winny> oops
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<pounce> is there some way i can apply `and` to a list? instead of just giving it a list of expressions
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<pounce> currently have `(define andl (λ (l) (foldr (λ (a b) (and a b)) #t l)))
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<pilne> maybe andmap? or perhaps i'm misunderstanding something somewhere
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<johnjay> is there a good resource for using racket in graphics for education?
<johnjay> i remember drawing fractals from SICP a bit but that's it
<johnjay> pilne: i've been trying out a mode where the ))) at the end of a line are tonally blended into the background
<johnjay> and all ( are at like 60% grey. it's quite usable
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<pilne> ((( and such never bothered, me, i *like* parens, but yeah, i usually setup my editors at some point to show me the ((( a lot clearer than the ))) stuff too.
<pilne> between ( and sane indentation, i find prefix-notation quite easy to digest mentally.
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<johnjay> i hadn't thought about (((( that much
<johnjay> since it's not that common
<johnjay> but yes i like it having ( at 60% brightness and ))) almost invisible. much easier on the eyes
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<pilne> i haven't quantified it really, but yeah, the parens are for the interperter/compiler, the indentation and hilighting is for me (:
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<vraid> meta-comment; this channel used to be much more active. did most discourse move somewhere else?
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<ZombieChicken> vraid: I can't comment too much, but right now it's getting into the holidays and finals at colleges, so if you're talking over the short-term, that could be the reason
<danderson> Does slideshow have some "interactive" mode where it refreshes automatically when I save the source file?
<danderson> iterating on a deck is a bit irritating otherwise
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<meepdeew> hello, I am a little unclear on HTDP #253. Is this the proper forum to ask? I
<meepdeew> Here's the question: http://pasterack.org/pastes/29529
<meepdeew> For [Number -> Boolean], I can think of something like the function `even?`. For [Number Number Number -> Number] I was thinking `+`. But I'm stumped on finding examples of built in functions for the other signatures listed. Is there a straight forward way to narrow it down? I've done cmd-f searches https://docs.racket-lang.org/htdp-langs/intermediate.html#%28def._htdp-intermediate._%28%28lib._lang%2Fhtdp-intermediat
<meepdeew> e..rkt%29._exact~3f%29%29 without success.
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<vraid> ZombieChicken: years, i was thinking
<ZombieChicken> vraid: Freenode is losing users in general I think. Too many other platforms are cropping up and are trendy enough to draw people away. I don't think it's just a #racket thing
<vraid> ah, that could be it. shame, really
<ZombieChicken> irc has been around since the 90's. New things always sprout up, but few last as long as IRC has. Given time, I imagine people will wander back.
<aeth> ZombieChicken: no, what happened was that big spam attack from one guy that made nearly every channel on Freenode go registered-users-only, which did a big cut in the number of users in most channels, even though almost every user on Freenode never speaks.
<aeth> ZombieChicken: As for this channel in particular, I think it might just be because schools are moving away from Scheme/Racket, e.g. MIT.
<ZombieChicken> MIT moved away from it ages ago, and I don't think Racket was ever /that/ big in schools. I thought the 'standard' was Java or C++
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<aeth> ZombieChicken: Yes, but another factor is that in the old days, afaik Scheme was seen as a functional programming language, and Haskell seems to have successfully redefined what a functional programming language is.
<ZombieChicken> Lisp has always been functional. It's just not *purely* functional like Haskell is
<ZombieChicken> also people still seem to be scared of the parens, for some odd reason.
<aeth> ZombieChicken: well it's not just about pure functional being hyped, it's also about static type systems being hyped... and things like monads
<ZombieChicken> I still find monads almost as confusing as objects, though I think the former are at least reasonably well-defined.
<aeth> ZombieChicken: I guess my main point was that Haskell evangelists successfuly has redefined 'functional' in programmers' minds as 'like-Haskell', except for Haskell's laziness