The Nineteenth Byte

Zgarb

19:00

@PhiNotPi A great game that I don't have enough time to play.

RikerW

Not.

IDC about spoilers, I have already known about hell and stuff...

zyabin101

So, I'ven't got questions for Code Golf Review, so ask. And thanks for the star @whoevergavemethe*(anonymous)*star!

Maltysen

@quartata i don't know that much about this stuff, but for any n, shouldn't there be n-1 primitive roots of unity?

n roots of unity, and take out 1

quartata

19:15

uh no

Maltysen

idk, that's what wikipedia is saying

"Any algebraically closed field has exactly n nth roots of unity"

quartata

Right...

Zgarb

@Maltysen But not all of the n-1 nontrivial roots are primitive.

Lembik

soo..my idea.. not too much like audio processing/machine learning?

Maltysen

i'm stupid

i get it now

Lembik

19:17

@Maltysen aren't we all :)

quartata

tis ok

Lembik

I love the fact that we are talking about algebraically closed fields!

PhiNotPi

@RikerW A "strange mood" is a situation in which one of your dwarves becomes compelled ("taken by a strange mood"/"possessed" ) to construct a legendary object (an "artifact"). The good thing is that you end up with some really nice stuff, and occasionally the dwarf acquires legendary skill. The bad thing is that the dwarf must create said object and will refuse to do anything else / will become destructive if the supplies are unavailable.

quartata

When does that trigger?

random?

Zgarb

@quartata More or less randomly.

PhiNotPi

19:21

Random.

Zgarb

Another bad thing: sometimes, the ingredients include body parts of other dwarfs...

PhiNotPi

Also I think it's rate-limited by the size/value of your fortress.

RikerW

@Zgarb um, okay????

:P

PhiNotPi

I'm taking a risk that the forgotten beast, despite being made of vomit, cannot phase through my fortifications.

RikerW

That is cool/bad

Cᴏɴᴏʀ O'Bʀɪᴇɴ

19:23

@Zgarb wat

RikerW

^

:?)

Zgarb

"Urist Boatleaf has created Twinkledoor, a legendary dwarf leather drum!"

RikerW

Cool.

Zgarb

Like I said, an awesome game.

PhiNotPi

So far, I've had 3 dwarves die.

2 from a couple of giant toads, and a third from the giant cave spider.

giant cave toads are annoying

New Main Posts

19:30

0

Q: Economical Coding?

Is there a way I can make this code more economical It's currently reading off a txt file which I linked with a pastebin. The only bit which I really need to be more economical about is reading off the txt file, at the moment it is asking for the code then it'll link that code to a line and that ...

python

Zgarb

@PhiNotPi Are you playing the newest version?

PhiNotPi

yes

Zgarb

How buggy is it now?

PhiNotPi

I'm not really sure how buggy it is.

Zgarb

At least in the past, major releases tended to be unplayable before a few bugfix rounds.

zyabin101

19:34

Why @Idle001's picture isn't showing up? Kappa

Zgarb

In one major release, everyone would mysteriously die when it started to rain. It turned out the rain temperature code had a misplaced decimal point, and rain caused the dwarves' skin to boil off.

7

Fun times.

RikerW

Question: How do dwarves get their buddies appendages to build with?

I am not sure I want to know....

@Zgarb @PhiNotPi ^^

Hey, is undead a normal sign next to my fortress?

Idle001

shame on se this place isnt yet graduated

3

RikerW

2 mins ago, by RikerW

Question: How do dwarves get their buddies appendages to build with?

Really, how?

Doᴡɴɢᴏᴀᴛ

what the heck

Zgarb

19:47

By clubbing them to death and butchering the corpse.

PhiNotPi

@RikerW IDK, I assume Zgarb is right, although I didn't think sentient lifeforms could be butchered.

RikerW

Okay.

And are undead normal?

BC I got some.

PhiNotPi

Not really, depends were you are though.

RikerW

They seem to be killing my dwarfs... So, wadda I do?

help pls

PhiNotPi

Undead are normally major cause for concern.

Any clue what type of biome you are in?

RikerW

19:53

Forest I think.

PhiNotPi

Are they coming from the map edge or spawning somewhere else?

RikerW

IDK though, like I said I am a definite newb.

@PhiNotPi Map edge.

So, I am doomed?

:(

:c

zyabin101

@RikerW :o

PhiNotPi

There might be a necromancer tower near you, or maybe some kind of undead biome near your.

RikerW

The biome next to me says "Terrifying"....

I am doomed according to the DF wiki.

PhiNotPi

19:56

well that explains it

RikerW

So I am doomed?

Maybe flee to nicer place?

IDK.

PhiNotPi

yes, the undead will basically continue to come forever

RikerW

NOOO!!! SVEN THE BOAT DUDE DIED!!!

Must. Kill. Them.

How?

gtg now, bai.

bai to dwarves....

PhiNotPi

depends if any part of your map area is undead

they are "killable" but you just need a tough army with some decent equipment.

If you are actually in any kind of undead biome you need to use blunt force weapons only, so that you mangle the corpses and prevent reanimate.

Zgarb

I think the undead got nerfed in a recent version, but I may be wrong.

PhiNotPi

19:58

I think so too.

I haven't tested anything out yet.

Lembik

do the math people think it's possible to compute the determinant of a circulant matrix using en.wikipedia.org/wiki/Circulant_matrix#Determinant exactly?

RikerW

Welp, they are all dead now...

:(

New game! Yay!!

::)

Sup @ETHproductions?

ETHproductions

@Doᴡɴɢᴏᴀᴛ Hold on, that's actually possible?

RikerW

Yes.

ETHproductions

@RikerW Not much, what game are you playing?

RikerW

20:07

Dwarf fortress.

zyabin101

@RikerW why new game? Are you permadying or something?

RikerW

I do like nethack better though.

@zyabin101 I mean new embark.

All my dwarves are dead.

Will do that later, nethack for now.

WTF?

Zgarb

@Lembik Looks like it could work, since ω_j * ω_k = ω_{j+k mod n}. Depends on what you mean by "exactly" though.

RikerW

@Doorknob how do I get out?

Lembik

@Zgarb I mean only using integer operations assuming the matrix only has integer entries

ETHproductions

20:10

I think this is the first day since I joined PPCG that I've gained rep on SO and not PPCG :P

RikerW

Wow..

PhiNotPi

Cage traps are really great. I have over 100 captured creatures. Most of them are just troglodytes and dralthas, though.

RikerW

like 101 on SO...

@PhiNotPi No clue what those are. :P

quartata

@RikerW search for secret doors

PhiNotPi

Common cave creatures.

quartata

20:11

10s

ETHproductions

You guys are making me want to download and play this game for myself

quartata

nah nethack is better

@Dennis you should add Jelly to the programming languages made by PPCG users thing

PhiNotPi

@RikerW Have you ever tried adventure mode?

Zgarb

@Lembik My idea would be to keep track of the roots ω_j symbolically. In the end, they should cancel out, since the determinant is an integer.

Lembik

@Zgarb that's interesting!

@Zgarb of course I want to make a challenge from this :)

Zgarb

20:14

But that may be difficult to do efficiently.

zyabin101

@quartata Did you mean this?

39

Q: What programming languages have been created by PPCG users?

Language-creation has become a popular activity on PPCG. A decent portion of answers, especially code-golf answers, are written in languages invented by the community. These are also languages that might be unfamiliar to this site's wider viewing audience. What languages (esoteric, golfing, or...

discussion

PhiNotPi

Another forgotten beast has appeared.

It's made of steam though.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

1

A: What programming languages have been created by PPCG users?

Jolf Jolf is yet another JavaScript variant; is procedural, like Pyth. It's GitHub repo was made around Nov. 15. It transpiles to JavaScript. It's a really handy tool, and I use it all the time when coding in JavaScript. Here is the interpreter! And some documentation, because you're such a nic...

PhiNotPi

Woo! Caught a giant cave spider!

quartata

Can you tame monsters?

Doorknob

20:26

in Nethack or DF?

quartata

DF obviously

Phi has not joined the dark side yet

2

RikerW

@quartata Wow, 4. :P

quartata

The only kind of room with no connections to others is a vault and they're smaller than that so I kinda figured

Doorknob

and don't have staircases in them for that matter

RikerW

ELI5 vaults?

quartata

20:30

ye

RikerW

Correction: ELI5 why random 3 djinns on friggin level 1?

Doorknob

djinn is plural

quartata

Vaults are special rooms with cash in them but they cannot be accessed except via teleporting

RikerW

Dead.

Doorknob

@quartata you can dig into them

you can dig down from a higher level and drop in

(although the latter is unlikely)

quartata

20:33

Anyways if you see "You hear the footsteps of a guard on patrol" there is a vault on the level

Doorknob

@RikerW by the way, djinn are never randomly generated (except on the Plane of Air)

was this on NAO? I could check the ttyrec

RikerW

No.

just on my computer.

I keep seeing them everywhere, but only when I am a monk.

Doorknob

y u no NAO >:(

RikerW

I can swap?

Doorknob

you can what?

RikerW

20:35

But i am hopping on/off bc I am doing something else too.

zyabin101

@quartata it's hearing, not seeing.

RikerW

@Doorknob I mean I can create a new NAo game if you are feeling bored.

quartata

as in seeing the message

RikerW

But I will be inactive for like 10 minutes at a time.

Doorknob

@RikerW oh, no, I was asking so that I could look at the ttyrec

RikerW

20:36

Expand TTYREC?

Doorknob

um

tty rec

RikerW

Oh, wikipedia.

Even mentions Nethack there. :P

New Main Posts

0

Q: Bézout's Identity

Introduction to Bézout's identity The GCD of two integers A, B is the largest positive integer that divides both of them leaving no remainder. Now because of Euclid's property that each integer N can be divided by another integer M as follows: there ...

code-golf number-theory

mınxomaτ

> Windows 10 failed to install: Something happened.

7

Well thanks for that helpful error message (┛ಠ_ಠ)┛彡┻━┻

RikerW

Dude, don't even get windows 10.

3

ETHproductions

20:40

I tried :(

RikerW

:(

I feel ya pain bruther.

ETHproductions

It ran out of power halfway through and reverted to Windows 7, and now my product key is invalid.

RikerW

What are wands of light used for?

Doorknob

light

Cᴏɴᴏʀ O'Bʀɪᴇɴ

Windows 10 < Windows X > Windows ME

RikerW

20:41

Other than light making.

Do trolls like become stone with light?

Doorknob

no

RikerW

Don't even know if trolls exist.

Doorknob

yes

GamrCorps

wands of light, you mean lightsabers?

RikerW

So what does it do?

no.

Doorknob

20:42

makes light

quartata

light...

RikerW

Is that useful for anything really?

Doorknob

I mean it's pretty self explanatory

RikerW

LMG, no.

Doorknob

@RikerW yes

making light

RikerW

20:42

But like why would I need light????

Doorknob

getting rid of darkness?

quartata

dark rooms

RikerW

I know it broadens my vision, but I can see fine.

Doorknob

then don't keep it ¯\_(ツ)_/¯

RikerW

@quartata Are those the rooms that don't stay dotted with '.' s?

@Doorknob Okay.

quartata

20:43

yes

RikerW

I like magic missile ones better. :P

OOh, got one!

Doorknob

magic missle wands are arguably even more useless

RikerW

And killed myself.

:(

Note to self, don't shoot at wall for testing.

It was cool though, it bounced in a square.

Doorknob

...

RikerW

@Doorknob Why?

El'endia Starman

20:44

hahahaha

RikerW

@Doorknob Dude, I play nethack just 4 fun.

quartata

...

RikerW

Not to ascend really.

Doorknob

@RikerW because they do like no damage

quartata

liek how much health did you have

was this on nao I wanna see a slow mo replay

Alex A.

20:46

@RikerW @Doorknob plays Nethack for keeps. The penalty for losing is death.

ETHproductions

Guess what? Your phone doesn't charge if the charger isn't plugged in. :P

Alex A.

@ETHproductions I would not have guessed that. I just assumed that electricity flew through the air from the outlet to the plug, wherever it may be.

quartata

wireless chargers are a thing

ETHproductions

@AlexA. Same here. I should read Wikipedia more often.

Alex A.

@quartata Yeah, a black magic thing.

PhiNotPi

20:48

A third forgotten beast, this time in a cave that I am connected to.

I'm about to get wrecked.

Doᴡɴɢᴏᴀᴛ

I finished the Sandbox Viewer for real this time:

2

Q: PPCG Sandbox Viewer

Screenshots How the button looks: The Viewer: About This is a userscript for the Programming Puzzles & Code Golf sandbox. It shows you your currently sandboxed posts. It's score. Comments on your posts. This also allows you review posts, vote, and comment on sandbox posts. The goal...

script placeholder

ETHproductions

Nice!

GamrCorps

wow thats awesome

Cᴏɴᴏʀ O'Bʀɪᴇɴ

joining just to +1

Doᴡɴɢᴏᴀᴛ

:D

ETHproductions

20:52

^^ same

I almost joined Worldbuilding yesterday just to upvote this answer:

38

A: How would a city styled like Venice be built with lava instead of water?

The Original In Venice, the streets are made of water; gondolas carry people from point to point, and walkways stretching over the water allow foot traffic. The buildings in Venice are set on a wooden foundation, sunk in sandy islands; without access to oxygen, the submerged wood is kept fresh, ...

for naming the lava city "Venasty"

RikerW

@quartata No.

@PhiNotPi lol

quartata

bummer

RikerW

Venasty?

ETHproductions

As opposed to Venice

Venice, Venasty

RikerW

I got that much.

Oh, ice-nasty. I see, but not particulary funny to me. shug

@AlexA. Like he kills himself? o_O

ETHproductions

20:57

Sounds awful to live there for sure

RikerW

^

;)

Martin Büttner

@RikerW nice/nasty

RikerW

Oh, okay.

Thanks @MartinBüttner

Doᴡɴɢᴏᴀᴛ

Is it okay if I post a "test" question to main and then delete it (to test my script), or is that like bad?

PhiNotPi

I don't really know what to do, so I'm going to form a "meat shield" of all my citizens in a 1-wide tunnel.

RikerW

20:59

Go for it.

@PhiNotPi rofl

YOu are cruel, but funny...

Martin Büttner

@Doᴡɴɢᴏᴀᴛ can it not be tested on meta?

PhiNotPi

Burrows a weird, but powerful.

Maltysen

@Doᴡɴɢᴏᴀᴛ i'll write my challenge now, just for you :)

It'll prolly take like 20 mins, though

Doᴡɴɢᴏᴀᴛ

@MartinBüttner Yeah, it can. Can I do it there?

@Maltysen :3

Martin Büttner

@Doᴡɴɢᴏᴀᴛ I don't see a problem, as long as you don't overdo it.

RikerW

21:03

How does it work?

Ooh, found it.

PhiNotPi

Meat shield isn't working, because the beast is just kinda wandering around.

RikerW

@PhiNotPi lol

Meat shield sounds really stupid though.

PhiNotPi

I'm going to send like 20 guys to go kill it.

RikerW

Bai dwarves, have a nice death!

PhiNotPi

Holy sh*t they killed it.

Only 2 fatalities.

Also it looks like some other forgotten beast got killed somehow.

RikerW

21:06

Nice.

ELI5 forgotten beasts?

PhiNotPi

Oh, I figured out why. This beast was on cavern level 1. There were two beasts in level 2, one must have killed the other down there.

RikerW

okay.

29 secs ago, by RikerW

ELI5 forgotten beasts?

Doorknob

the strongest thing I've ever been up against was a weresomething

RikerW

something?

Doorknob

I forgot that they were trapavoid, but my hastily-thrown-together militia of 5 managed to kill it with no fatalities

turns out that after it died, the weapon it was using was a sock

Zgarb

21:08

@RikerW Randomly generated unique monsters that roam the underground caverns.

RikerW

@Doorknob You on NAO now?

Doorknob

are you?

RikerW

No.

Answer me!! pls

Don't see keyboardfire, doorknob, or andy.

Welp, here I go. :P

Doorknob

no I haven't played at all ever since shortly after the update, after I ascended my 3.4.3 caveman :P

ETHproductions

The regex that only matches itself is down to 40 bytes. O_o

Cᴏɴᴏʀ O'Bʀɪᴇɴ

21:13

o_o

ETHproductions

80

A: Regex that only matches itself

PCRE flavor, 261 289 210 184 127 109 71 53 51 44 40 bytes Yes, it is possible! <^<()(?R){2}>\z|\1\Q^<()(?R){2}>\z|\1\Q> Try it here. (But / is shown to be the delimiter on Regex101.) The version works more correctly on Regex101 (44 bytes): /^\/()(?R){2}\/\z|\1\Q^\/()(?R){2}\/\z|\1\Q/ Try ...

2

Doᴡɴɢᴏᴀᴛ

Oh great, the script trips human verification. This is going to be a problem...

ETHproductions

For some reason, I often scroll down to the Hot Network Questions list, click on one that interests me, then immediately scroll down to the HNQ list on that page and repeat the process.

I end up visiting most of the hot questions' pages without ever reading one.

El'endia Starman

Middle-click!

Alex A.

Up click

Cᴏɴᴏʀ O'Bʀɪᴇɴ

21:25

Trip-click

Zgarb

Ctrl-click

Alex A.

Click-click

ETHproductions

Pop-click

"Just one more"-click

"DIE YOU STUPID ZOMBIE"-click

"<- Star this message if something something"-click

El'endia Starman

Resist the temptation...

ETHproductions

"<- Star this message if you don't want me to put a bullet in your head"-click

quartata

21:34

I am a little surprised at how little attention my challenge is getting but I suppose it is a Sunday and Dennis already won basically so

That's the issue with the FGITW...

@El'endiaStarman :P

ETHproductions

★

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@quartata which challenge?

flawr

Helicopter crash in Chernobyl

►

Hello happy people!

El'endia Starman

@flawr I'm so glad YouTube oneboxes include the title. :P

flawr

@AlexA. chick flick

quartata

21:38

@CᴏɴᴏʀO'Bʀɪᴇɴ primitive roots of unity

Cᴏɴᴏʀ O'Bʀɪᴇɴ

oh

flawr

New Challenge: sophisticated roots of unity

quartata

hmm

Dennis

@quartata I probably should. I was hoping to get a bit of documentation done before adding it...

flawr

I do not believe that I already got 7 upvotes for my first post on superuser.SE: superuser.com/questions/1027499/…

quartata

21:40

I think the atoms.md is good enough for now

Dennis

It's rather useless without some knowledge about tacit functions though.

At the very least, I have to explain chains.

quartata

@flawr can you test the new matlab answer to my challenge? i am not sure it calculates the primitive roots

flawr

Sure, link?

Dennis

@quartata I doesn't. It calculates all roots.

J Atkin

Duplicate accounts?

Matt

1

python

Matt

1 1

quartata

21:43

on mobile cannot link sorry

J Atkin

codegolf.stackexchange.com/review/suggested-edits/27091

Dennis

1

A: Primitive Roots of Unity

Matlab 26 bytes @(n)exp(i*2*pi/n.*(0:n-1)) Divides power of 2*pi by n and multiplies by vector 0:n-1. Outputs as follows: ans(5) ans = 1.0000 + 0.0000i 0.3090 + 0.9511i -0.8090 + 0.5878i -0.8090 - 0.5878i 0.3090 - 0.9511i

quartata

@Dennis that is what I thought

Dennis

octave:1> f=@(n)exp(i*2*pi/n.*(0:n-1))
f =

@(n) exp (i * 2 * pi / n .* 0:n - 1)

octave:2> f(4)
ans =

   1.00000 + 0.00000i   0.00000 + 1.00000i  -1.00000 + 0.00000i  -0.00000 - 1.00000i

quartata

two answers in a row

..

New Main Posts

21:56

0

Q: Predict whether a message will be starred or not in 50 bytes

Given an input of a string consisting of any message from our site chatroom taken from the list described and linked below, output either a truthy or a falsy value attempting to predict whether that message was starred or not in 50 bytes or less. You may use any truthy or falsy values, but they ...

code-golf test-battery

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