The Nineteenth Byte

28 commits behind? Whoa Art has been busy

user207712

3:22 PM

@quartata on what?

though there's a different whitelist for answers, comments, and questions

@Dennis Argument removal is broken on IE on TIO. Object doesn't support property or method 'remove'; File: frontend.js, Line: 15, Column: 39

@quartata Yeah, I closed all the open issues this morning.

@CᴏɴᴏʀO'Bʀɪᴇɴ it's IE, everything breaks :P

tell your school to get better browsers

@EᴀsᴛᴇʀʟʏIʀᴋ Also if you are planning to only add commands, use the Slack API for Slash Commands.

@ArtOfCode They forbid the downloading of browsers et all for fear of "viruses".

3:23 PM

I'd say I told mine to and they did, but I'd be lying.

I did it for them with my admin account :)

"let's just install Chrome here for absolutely everyone"

People do that on their own :P

I'm supposed to uninstall it by force >:|

@CᴏɴᴏʀO'Bʀɪᴇɴ Yeah, the one thing our IT techs managed to get correctly locked down was forbidding running executables from anywhere but C:\Program Files (and x86) or the network.

@ArtOfCode I'm stupid and can't find the method for creating notifications

so you could download a browser, but you couldn't run it

@quartata User#create_notification(content, link)

It's user.createNotification right?

oops

3:26 PM

IIRC

It's good when you know a codebase well enough that you can just quote method signatures off the top of your head :)

@ArtOfCode The students are our IT. sighs That makes me (unfortunately) the most knowledgeable amongst the students.

Dennis

@CᴏɴᴏʀO'Bʀɪᴇɴ (╯°□°）╯︵ ƎI

@CᴏɴᴏʀO'Bʀɪᴇɴ snap. Now upgrade your account to network admin, and everything is fine.

Install Chrome for everyone.

@ArtOfCode They wont let students do that. siiiiighs

@ArtOfCode And Firefox ftw.

@CᴏɴᴏʀO'Bʀɪᴇɴ Neither will mine, but... they're dumb and didn't notice me doing it.

TimmyD

3:27 PM

IE is great and does all things.

17 hours ago, by ArtOfCode

Like how do you not notice a kid bypassing UAC dialogs, going into the network control software and clicking Make Admin?

@ArtOfCode Haha, nice. We have monitoring on our tablets. I could try setting up a scrambler of some sort, but I really don't know how I'd go about doing that.

Geobits

@TimmyD ... even when you don't want it to :P

^ XD

@CᴏɴᴏʀO'Bʀɪᴇɴ Heh. So do we. It's bad, I uninstalled it, and they didn't notice.

3:29 PM

@ArtOfCode I'd do that, except we have to return our tablets :|

@CᴏɴᴏʀO'Bʀɪᴇɴ Just move it?

My sister, on the other hand... uninstalled it on a jailbroken iPad, they noticed and factory reset it to try to fix it. Which totally bricks jailbroken iPads.

@MarsUltor They'll notice

@ArtOfCode gg

I spent most of Saturday fixing it for her :P

That's nice of you

3:29 PM

@ArtOfCode How should I get a link to a post?

@quartata a what now?

oh

url_for(:controller => :questions, :action => :show, :id => @question.id)

If I have a Question or Answer object

how do I get the link to it

for the notification

^

ah

bai

3:31 PM

or if it's an answer

@CᴏɴᴏʀO'Bʀɪᴇɴ bai

url_for(:controller => :questions, :action => :show, :id => @answer.question.id)

@ArtOfCode Oh, oops

or you can just construct it as a string

one second don't accept that pr yet

3:33 PM

"/questions/#{@question.id}"

"/questions/#{@answer.question.id}"

the latter being shorter, the former being more robust if the routes change

Will just post.id work if its an answer?

Using url_for that is

I'm guessing not

After some significant optimisation, I have iteration 5...

@quartata nope

you'd need post.question.id

@trichoplax how long?

3:35 PM

@ArtOfCode ok

@ArtOfCode Previously, 4 was taking 50 minutes, now takes about 6. This one (5) took about 5 minutes but it is scaled down to half size compared with the others

@ArtOfCode check your prs and issues

@quartata already looking at 'em :P

TimmyD

@trichoplax That's really neat looking. I want to print it out and color it.

@TimmyD Lol feel free. I may even be able to produce higher iterations now my code isn't exponential...

El'endia Starman

3:38 PM

@trichoplax All one strand?

@trichoplax at 4730 square, it ain't exactly small.

@El'endiaStarman Indeed it is

El'endia Starman

That's really cool.

@ArtOfCode I keep the line thickness constant, so each iteration roughly doubles the height and width. I'm still trying to decide what scale to settle on for the challenge.

@El'endiaStarman Thanks! I'm more pleased with it that my hand drawn one :)

@trichoplax 1px lines

So it runs faster

3:40 PM

@MarsUltor 4 pixels so the outer lines are 1 pixel?

@quartata am I good to merge?

user207712

@trichoplax sierpensinki wow!

@trichoplax Probably - you may want to try to generate one, to see if it's easily visible

or were you going to add mod/admin symbols to that one too?

@Solver Thanks - it's going to be a challenge once I settle on the details

user207712

3:42 PM

@trichoplax @everyone plz check this out i made it khanacademy.org/computer-programming/new-program/…

user207712

@trichoplax about wat

@Solver It will be a graphical-output code-golf

user207712

@trichoplax did u see the link????

@ArtOfCode go ahead and merge I'll do that one later

@quartata cool

merged, waiting for SSH before I can deploy

3:44 PM

@Solver Are you asking me about the message your reply is pointed to?

user207712

@trichoplax pleez say it is good i am only 11 so it is good for 11 year old

user207712

@trichoplax i mean khanacademy.org/computer-programming/new-program/…

@Solver Wait, really?

user207712

@MarsUltor yes

@Solver I was looking at your other message - only just opened this one. The chaos game method of drawing the Sierpinski Triangle? I love that. I hadn't even heard of it when I was 11...

3:46 PM

TIL there's someone younger than Easterly Irk here

user207712

@MarsUltor but i am not breaching coppa i have been account nuked once already.

@ArtOfCode oh oops I should add the question title to the notification

user207712

@trichoplax Like it? I used to leave it running for ages and look at it afterwards...

deployed

user207712

@MarsUltor yes i know he's 13

user207712

3:48 PM

@ArtOfCode help pleez help

Heh. @quartata it broke

@Solver It works with other polygons too - here's one with a pentagon

user207712

@trichoplax lemme try code that...

@Solver One of the things I love about the Sierpinski triangle is there are so many different ways to draw the same thing. The chaos game is my favourite - it sounds like it shouldn't work but the image just appears...

@ArtOfCode 1. what went wrong 2. can you do a recalc

3:51 PM

You should be able to use pretty much the same code, just with 5 points instead of 3.

user207712

@trichoplax hmm i cant really because i need points of a pentagon on a cartesian plane.

@quartata 1. go vote on something

@Solver Use sin/cos to find the points

user207712

@MarsUltor errr, explain?

@ArtOfCode oh so that is why I can infinitely unupvote things

3:53 PM

@quartata I fixed it, the .is_a? call failed

user207712

@trichoplax you know I discovered my own fractal?

user207712

@trichoplax at least I think so

@Solver How does it work?

Make the center (200, 200), then have x_center+sin(angle) + y_center+cos(angle) as one point

Repeat for every point

user207712

@trichoplax I wrote a scratch program to chaos game draw the sierpensink triangle....

3:55 PM

@ArtOfCode can you do a recalc

PhiNotPi's answer to the symbols question is a good one

@quartata done

@Solver Oh - I thought you meant you had discovered a new invention...

user207712

@trichoplax wait a second....

I don't know if I like rep notifications...

user207712

@trichoplax totally see this imgur.com/NyniRcL

user207712

3:58 PM

@trichoplax good for 11 year old right?

crap

Hey, at least it's not 75% CPU anymore.

@ArtOfCode do they even work? I haven't gotten any

@quartata yeah, I've had some

user207712

@trichoplax did u see - i want public opinion

@Solver I like it. Does it use an Iterated Function System?

user207712

4:01 PM

@trichoplax it's chaos game that i created by accident

@Solver Really? Chaos game meaning choosing a random point to move towards? I didn't realise you could make shapes like that with chaos

Chaos game sierpinski - variable number of points

user207712

@trichoplax i am using a triangle. if u want i will give you a snip of the scratch code

user207712

gtg

@MarsUltor Due to the irrational aspect ratio of the shape, the get lines a minimum of 1 pixel thick, most lines need to be thicker. I prefer thicker lines so a 1 pixel difference doesn't show up so much. I need to find a compromise inbetween somewhere - lines thick enough to look even but also thin enough to make running time practical

4:04 PM

@ArtOfCode Imma edit rep and comment notifications to include the name of the post in a bit

@trichoplax 3-5px then?

but yay they work

@quartata sure. I might add a setting to turn them off, 'cos I'm not sure I like them

Well SE has them too...

4:05 PM

also how do I clear all notifications

user207712

@trichoplax non-trivial?

El'endia Starman

I like how the asymmetry makes it appear slightly 3D.

user207712

@quartata click on all of them

@MarsUltor The thickness difference is still noticeable but not so jarring now

PhiNotPi

4:06 PM

@ArtOfCode lol

@quartata yeah, but not in the same box

PhiNotPi

That's pretty great.

@Solver You want the same thickness lines at a higher iteration?

There we are, setting added.

@El'endiaStarman Yes this seems to be near the limit - much thinner and it just looks broken and gaps start appearing in the thinner lines...

4:08 PM

Leaving them on for now, though.

Zgarb

Ooh, tryapl.org now supports keyboard input!

Helka Homba

Mystery Founder Of Bitcoin Comes Forward - sanfrancisco.cbslocal.com/2016/05/02/…

Why is this so amusing? [NSFW]

@HelkaHomba Wow - that actually sounds conclusive - I was expecting another vague guess

Helka Homba

4:15 PM

He's Australian, so I can only assume he's @Sp3000 as well.

3

Morgan Thrapp

@HelkaHomba Whoa! Never thought we would ever find out.

@ArtOfCode oh god

done it

@HelkaHomba Why not Quill?

@VTCAKAVSMoACE spent a good few minutes laughing

Morgan Thrapp

The other theory I'd heard that made sense was that is was Paul Le Roux.

4:19 PM

@MorganThrapp That guy made TrueCrypt? o_o wipes hard drive and steps away slowly

Morgan Thrapp

@VTCAKAVSMoACE Not completely, but sort of.

TrueCrypt is/was sooooo good.

@EᴀsᴛᴇʀʟʏIʀᴋ this message has no text for me

@QPaysTaxes Aye, a few people have said that. What about the pair at the ends of the lines in my answer here?

Wait, hold on, is ? a quine in Dyalog APL?

@QPaysTaxes Right, so HTML entities don't help either. Those are out, then. What about PhiNotPi's answer?

@QPaysTaxes awesome

4:28 PM

@ArtOfCode Did you see my answer on that question?

@QPaysTaxes the EOL pair in my answer are.

&#9929 and &#9930

@QPaysTaxes I have seen cases where it helps, though.

i.e. if you use IE, it hates the literals but it'll render the entities just fine

I think we need to add IE to the regex that tests if something would be starred.

We did, that's just one of the ways.

Is the starry-eyed bot currently running?

@ArtOfCode no

shame

4:30 PM

@ArtOfCode Which bot?

Well we'll just use something that most people have then.

could do, but cost:reward is much higher for those

@Solver @trichoplax en.wikipedia.org/wiki/N-flake#Vicsek_fractal

@ArtOfCode Which bot?

@zyabin101 the starry-eyed one

'eleven that message'

...the irony

TimmyD

@QPaysTaxes For good or for awesome?

4:45 PM

@MarsUltor Interesting - they look close

@QPaysTaxes Shouldn't you declare it in the header?

Doorknob

@zyabin101 What?

@Doorknob If you made that one Wheel of Blame for PPCG, you should have known that it's rigged so it's always Geobits to be blamed.

While you're at it, I have never got an answer to this question: How do you read a Babble program out loud?

Doorknob

@zyabin101 If I did what? What are you talking about?

Jul 30 '15 at 18:11, by Doorknob

@AlexA. The PPCG Wheel of Blame

Doorknob

4:53 PM

@zyabin101 Yeah I didn't make that

@Doorknob Then who made it?