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Set by lizmat on 6 September 2022.
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lizmat drops a pin 12:45
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antononcube I will drop a graph then: 14:21
cdn.discordapp.com/attachments/633...10ec7&
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@lizmat See the above image, in case you are curious why am I looking into "Text::Emoji". 14:22
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lizmat antononcube Spock! 15:59
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tbrowder lizmat: can one define a Set containing IntStr’s like (0 1 2 a b) without quotes? 17:54
if so, how would i check for membership of 1 or a? 17:55
lizmat "a" and "b" are not IntStr so that wouldn't work
tbrowder hm, i see. 17:56
lizmat m: 'my %h is Set[Str] = <0 1 2 a b>; dd %h<1>, %h{1}
camelia ===SORRY!=== Error while compiling <tmp>
Unable to parse expression in single quotes; couldn't find final "'" (corresponding starter was at line 1)
at <tmp>:1
------> Set[Str] = <0 1 2 a b>; dd %h<1>, %h{1}<HERE><EOL>
expecting any of:
…
lizmat m: my %h is Set[Str] = <0 1 2 a b>; dd %h<1>, %h{1} 17:57
camelia Bool::True
Bool::False
lizmat m: my %h is Set[Str] = <0 1 2 a b>; dd %h<1>, %h{1}, %h{"1"}
camelia Bool::True
Bool::False
Bool::False
tbrowder thnx, something to play with 17:58
lizmat note that constraining the Set to Str, does allow allomorphs 17:59
tbrowder ah, that’s the term i was forgetting, “allomorphs” 18:00
ok, cool
lizmat note that "1" and 1 are *not* allomorphs, so return False when checking for membership that way 18:01
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[Coke] m: sub aa($a) {my $s=[+] $a.comb; $s.comb.elems > 1 ?? aa($s) !! $s}; say (5..*).grep(*.is-prime).rotor(2 => -1).grep({.[0]+2==.[1]}).map({.[0]*.[1]}).map({aa($_)})[^100] 18:28
camelia (8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8)
tellable6 2025-02-26T07:13:46Z #raku <melezhik> [Coke]: there is also GRPC/protobug thing - that serialize data in internal binary format but for end client this looks like remote procedure calls which are just native to a language data structures
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[Coke] (apparently if you take twin primes starting with 5, multiple them together, then add the digits together iteratively until you're left with a single digit... it's 8.) 18:36
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[Coke] seen on a youtube short recently, apparently I watch too much maths. 18:43
ah, the proof is simpler than I thought. Nifty. 18:45
also, if anyone can golf that more... 18:46
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lizmat and there I was thinking at was just a very convoluted way to say (8 x 100).List 18:57
:-)
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lucs [Coke]: Here's a very ungolfed version I made for my notes: gist.github.com/lucs/b5be63a3961b6...d235e667bc 20:23
[Coke] chalkdustmagazine.com/blog/digital...-primes-8/ 20:32
lucs Aha, thanks. 20:35
[Coke] www.youtube.com/shorts/I8lAobOidvo was the video, btw. 20:37
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japhb lizmat: Trying to build the world at Rakudo 2025.02, I can't install App::Rak::Complete because ParaSeq:ver<0.2.7>:auth<zef:lizmat> fails testing. It appears to be fine until passing 10-invert, and then it goes very low CPU and just stalls out until eventually the (Perl 5) harness kills it. 21:05
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[Coke] How is the p5 harness involved? 21:19
(just kicked off a zef --serial install of R::A::C and it also appears to.... slow down on ParaSeq
japhb [Coke], lizmat: Clarified in github.com/lizmat/ParaSeq/issues/4 21:23
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[Coke] Oh, I forgot about this - it's still hanging. :) 22:03
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[Coke] I'm on macOS 14.6.1 here 22:04
killed it by hand.
japhb OK, thanks for the confirmation that it's not just me. :-) 22:05
Mind if I add this to the bug report?
[Coke] that's fine 22:07
while running *11, the last output here is [ParaSeq] ok 3 - The object is-a 'ParaSeq' 22:08
(did an install with -serial, and then a zef look on paraseq and a zef test -v . 22:09
ugexe you can just run `raku -I. t/11-reduce.rakutest` after zef look ParaSeq to further isolate
japhb Bug updated, thanks 22:15
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lizmat japhb [Coke] weird, I thought I had removed the dependency on ParaSeq a little while ago... 23:05
ah,it's JSON::Fast::Hyper...
antononcube Agh, twin primes... 23:07
I was wondering should I make a twin-primes sub in "Math::NumberTheory". 23:08
It is border line trivial, but then, many of the subs in "Math::NumberTheory" are. (And that is one of its selling points.) 23:09
lizmat In a little while App::Rak::Complete should be installable again
[Coke] would a twin primes sub generate the list or verify if two numbers are? 23:12
antononcube @Coke Good question. In some sense I cannot stop with just making twin-primes -- I have to make twin-prime, cousin-primes, and sexy-primes. 23:13
twin-primes(n) : gives the first n pairs of twin primes. 23:14
The subs cousin-primes and sexy-primes are similar, but use difference 4 and 6 respectively. 23:15
twin-prime(n) -- just returns the first of a twin primes pair. 23:17
[Coke] I imagine "sixy" primes are harder since you can't just compare the two consecutive ones? 23:32
antononcube Hm... It is a simple intersection using two lists generated via the sub prime. I will commit the related-primes code with 10 min -- the procedure would be seen there. 23:35
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japhb lizmat: Is ParaSeq a legacy module now? 23:36
lizmat no, it's been put into production too soon
also, now that we have -Mown-up I can finally figure out where it's deadlocking :-) 23:37
but first, sleep&
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japhb I missed too much while I was mostly out of commission, sigh. 23:39
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antononcube @Coke See github.com/antononcube/Raku-Math-N...s.rakutest 23:54

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