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Devac




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I'm just gonna leave this here.

Fun fact: higher/formal math? Yes. Numbers? Not even close.

Devac  ·  link  ·  parent  ·  post: Collatz conjecture

I made these: https://imgur.com/a/77NLR but it's kinda repetitive. It's a collection of paths of equal length. That is, at each picture you get all path the length of n, with n up to 23.

But I got a different idea: draw random shapes using Collatz paths! So I made this little script using Python's module turtle.

You can run from command line with:

  python3 collatz_turtle.py some_number

Depending on the number (I tested it for fairly low ones), the different path will be drawn. It's also unlikely you'll get a repeat because the turtle's turns are randomised. Play around, feel free to change colours or zazz it up as you see fit.

Here are some outputs, ordered by the complexity of shape (subjective):

Devac  ·  link  ·  parent  ·  post: Pubski: February 14, 2018

Don't mention it. Though, I hope that I didn't end up spoiling the problem for you.

    We had some fun with the Collatz Conjecture earlier.

And I managed to miss that thread, huh? Well, then check this out: https://imgur.com/a/77NLR

Each image consists of Collatz paths of equal lengths. I'll try to make it into a gif at some point. Though, I'd rather provide data for people who know anything about making stuff presentable.

Devac  ·  link  ·  parent  ·  post: Pubski: February 14, 2018

Still got it. Here's the problem statement.

Hospital adventure:

Mood - sleepy, but a lot better than for the past month. I think that being forced to slow down has finally allowed me to process recent events.

Meds - got some, no idea what they are. My legs and hands don't feel as numb all the time, so there's some improvement.

Tests - exhausting af. My results are much worse than two years ago but manageable. I am scheduled for tomorrow for a neurological consultation, but don't understand why.

Food - atrocious, even compared to any other hospital food I ate.

Other people in the room - surprisingly OK.

The number of emails with a phrase along the lines of "I know that you are in the hospital, but this is urgent" since Monday – 9. I'm so going to bring that up the next time somebody will ask why am I even around.

My pleasure. It also works in general, for any author and responder:

https://hubski.com/comments/author?replied=responder

Pretty useful if you remember an interesting conversation between two people, but any search query you try leaves you with waaaaay too many matches.

Devac  ·  link  ·  parent  ·  post: A single atom has been photographed.

Pretty fucking cool! Made me recall this article from a few years ago, linking just for time and size scale.

Devac  ·  link  ·  parent  ·  post: Any Polish Puzzle-Solvers on Hubski?

Honestly, if it was part of a competition between universities or a scavenger hunt organised by one of their big four (Jagiellonian U, Cracow Tech, AGH or Fine Arts) it's extremely likely it got local coverage or/and was documented by at least one of the student unions. I wouldn't lose hope.

I just hope it wasn't some 'for the lulz' prank. Leaving a cypher that looks legit but is in fact just some gibberish can only be appreciated as the perfect anticlimax. :/

Devac  ·  link  ·  parent  ·  post: Any Polish Puzzle-Solvers on Hubski?

OK, so I spent quite some time mulling it over. Here's a problem: I'm almost 100% certain that it either/or/and:

- uses some regionalisms that I'm not familiar with[1];

- there's a second layer of cypher below the symbols;

- there was at least one transcription error consistently repeated through the message.

That said, I talked to one guy from Cracow who said that it could be a part of some student prank or scavenger hunt. He promised to ask around. I'm also planning on spending my summer in Cracow so I'll do some sleuthing on my own if given enough free time.

I think that you deserve an update. I didn't forget or give up. But I also didn't solve it.

[1] - Those can range from "a bit weird, but I understand it" to "WTF? Was that even in Polish?!" and Lesser Poland leans closer to the second category. Good news, though: it's not the worst region in that regard.

Devac  ·  link  ·  parent  ·  post: I finally got my scholarship back

Yup. The amount of paper I collected from the pencil-pusher squads is now closer to a shit-fort than shit-shield. Though it's only mildly effective against all the bureaucratic inertia, I'd never underestimate its value as an arse-shelter.

Someone I know suggested bringing forth a sacrificial pie to appease them. It's tempting to see if that's going to work. I mean, it's unlikely there's even a shittier list than the one I seem to be occupying at the moment.

Devac  ·  link  ·  parent  ·  post: Programmer's Learning Machine (PLM)

If you are new to programming (sorry if my assumption is wrong), then I can recommend this course as a supplement. Despite being a bit dated (Java 7, mentions new Java 8 goodies around the end), it's gently paced and free.

    I feel codeacademy is good with some limitations.

It can be convenient (no installs or configuring IDE) and teaches you language syntax. That said, most of my memories of Codecademy can be summarised with a comparison to my high school chemistry teacher: even if your reasoning and answer were correct, you'd fail because the method wasn't EXACTLY how he showed it in the class. ;)

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