The Nineteenth Byte

zʏᴀʙiɴ101

9:00 PM

Look out for the sections called O.

Downgoat

Has here been and android G yet?

Maltysen

@Downgoat yeah, gingerbread

Helka Homba

Android version history

The version history of the Android mobile operating system began with the release of the Android alpha in November 2007. The first commercial version, Android 1.0, was released in September 2008. Android is continually developed by Google and the Open Handset Alliance (OHA), and has seen a number of updates to its base operating system since the initial release. Versions 1.0 and 1.1 were not released under specific code names, but since April 2009's Android 1.5 "Cupcake", Android versions have had confectionery-themed code names. Each is in alphabetical order, with the most recent being Android...

Maltysen

IIRC it was 2.3

Downgoat

;-; why not goat

Or if it has it be a food, android goat curry

Maltysen

9:02 PM

@Downgoat i see you're authorizing us to eat your kind

Sherlock9

Hello again

quartata

I just ate stop making me hungry

hahahahaha

kehe

9:06 PM

So what happened with this Erik the Golfer guy?

quartata

Anyways @Downgoat thoughts on goat cheese?

Sherlock9

The transcript hasn't much to say. It's like he's been expunged

quartata

@Sherlock9 Nothing about him really. he used a meme then chat started going nuts with carets

Sherlock9

Ah ok, then I just did read far enough

How is everyone :D I haven't been in chat in a while

quartata

I'm hungry but okay

Helka Homba

9:10 PM

@Sherlock9 Choose github.com/HelkaHomba/ThePeoplesPython/blob/master/…

Optimizer

Helluuuu

hey, I just realized. I should be zip

zip it more = Optimizer

2

Sherlock9

I'm fond of divmod. Second choice is complex

So why are we doing a Python-PPCG Mad Libs?

Helka Homba

Fun

Sherlock9

Fair enough

I wonder if we can do this with other languages where there are more keywords

PHP may have a ton of those

Helka Homba

HQ9+ -> Helka Quartata Sherlock9 and...

trichoplax

9:16 PM

trichoplus?

4

TùxCräftîñg

xD

Sherlock9

@HelkaHomba I am not going to be able to get through 99 bottles of beer

One and a half and I'm a giggling maniac. Asian alcohol tolerance (and the lack thereof)

Helka Homba

@Sherlock9 Pull your weight man. I'm fine with "hello, world".

Optimizer

"Heluuu world"

Sherlock9

You have 12 characters. I have a whole song and an alcoholic's lunch to get through

TùxCräftîñg

9:20 PM

@Sherlock9 i suggest golfing a program to drink all the bottles

Sherlock9

Very well

9

Done :P

Helka Homba

@Optimizer tomorrow maybe

Optimizer

playing something else?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@Dennis Can you add a synonym to brainfuck.tryitonline,net as bf.tryitonline.net? I want to include a link in an ad

Sherlock9

So I was gone most of June

What did I miss?

Maltysen

9:22 PM

@Sherlock9 we got community ads

Sherlock9

Woot!

What are those?

Maltysen

@Sherlock9 top of starboard

Sherlock9

Was just about to say haha

zʏᴀʙiɴ101

@CᴏɴᴏʀO'Bʀɪᴇɴ You can't use the word brainf*** in answers?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

> in an ad

Eᴀsᴛᴇʀʟʏ Iʀᴋ

9:24 PM

that would piss a lot of people off imo

Okay, those carets were legit.

TùxCräftîñg

please give me stars for no reasons

Eᴀsᴛᴇʀʟʏ Iʀᴋ

They signified agreement.

I think that should be allowed.

zʏᴀʙiɴ101

@CᴏɴᴏʀO'Bʀɪᴇɴ You can't use the word in an ad?

Eᴀsᴛᴇʀʟʏ Iʀᴋ

probably not

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@zʏᴀʙiɴ101 it's against site policy.

Dennis

9:25 PM

@CᴏɴᴏʀO'Bʀɪᴇɴ That would require setting up a different interpreter or mess with Apache's configuration files. Couldn't you just use an URL shortener?

Cᴏɴᴏʀ O'Bʀɪᴇɴ

oh, true

:P

Sherlock9

We stopped allowing the word "Brainfuck" in titles of answers, too. It was a while back when a Brainfuck challenge ended up in the Hot New Questions feed

Eᴀsᴛᴇʀʟʏ Iʀᴋ

@CᴏɴᴏʀO'Bʀɪᴇɴ v.ht/bfesolang

Dennis

@EᴀsᴛᴇʀʟʏIʀᴋ How do you agree with a quote? o_O

zʏᴀʙiɴ101

YANI: Advertise Try it online!... if @Dennis consents.

Dennis

9:27 PM

I don't know who Yani is, but sure.

zʏᴀʙiɴ101

YANI means Yet Another New Idea >_>

Luis Mendo

Now that you guys mentioned that: TIO should be in the Community Promotion Ads. Or is that what Zyabin101 meant?

Dennis

I think so, yeah.

zʏᴀʙiɴ101

@LuisMendo I meant: TIO should be in the Community Promotion Ads.

2

Downgoat

@Maltysen I never authorized you to eat it I authorized you to name android after it

Luis Mendo

9:30 PM

@zʏᴀʙiɴ101 Ok :-)

We need an image for that

Maltysen

@Downgoat too late already consumed like 4 of your brethen

2

Downgoat

@quartata my thoughts? Idk how to do implicit semicolons

@Maltysen Q_______Q y u do dis ;________;

;-;-;-;-;;-;-;-;-;-;-;

flawr

PS: if you write a^b^c do you mean (a^b)^c or a^(b^c) ?

Maltysen

@flawr a^(b^c)

(a^b)^c==a^(b*c)

Luis Mendo

@flawr The first, I think

Assuming ^ is power

flawr

9:32 PM

@LuisMendo Really?

Yeah I'm talking about the power function

Luis Mendo

Well, that's what Matlab does

>> 2^3^4
ans =
        4096
>> 2^(3^4)
ans =
     2.417851639229258e+24

Left to right, same precedence

El'endia Starman

I'm surprised that Matlab got that wrong. Exponentiation is right-to-left.

Downgoat

:/ that's weird exponentiation is right associative

Luis Mendo

Huh? I had never heard that

flawr

@LuisMendo Also when you see this?

Sherlock9

9:34 PM

Python's exponentiation is right-associative

Downgoat

@LuisMendo I got that messed up too in cheddar >_>

El'endia Starman

So is Pytek's exponentiation! :D

Luis Mendo

@flawr I think so, yes

flawr

@LuisMendo I would also agree with anyone else, that a^b^c = a^(b^c)

Luis Mendo

Ok :-)

Yes, in Maths I think you are right

It makes more sense now that you say it

Because the "c" is so small

flawr

9:35 PM

hehe=)

Luis Mendo

So it means it's an exponent of the exponent

flawr

The fun thing is that I had to write a^{b^c} in latex=)

Luis Mendo

For( a^b)^c , the "c" should be as big as the "b"

Sherlock9

Both Haskell and Ruby's exponentiation is right-associative, as well

flawr

@LuisMendo a^b^c in latex results in this:

So Latex agrees with Matlab, but disagrees with anyone else=)

Luis Mendo

9:38 PM

I thought a^b^c would error in LaTeX

flawr

Lets test with a real latex implementatin

Luis Mendo

It does

It says "double superscript"

(on MikTeX at least)

flawr

Indeed.

Talking of math

There are relatively efficient methos for calculating b^e mod m

Maltysen

@Downgoat no, you did that right in cheddar

flawr

But are there also efficient methods for calculating a^(b^e) mod m?

Where b^e can already get really big?

Luis Mendo

9:41 PM

@flawr Do you mean without computing b^e?

Ah, ninja'd

flawr

Yeah

Downgoat

@Maltysen ?

Maltysen

@Downgoat ^ is right associative

Downgoat

ik

i did it left until mars fixed it

flawr

I can never remember which one right or left associative is.

Maltysen

9:42 PM

@Downgoat oic

Luis Mendo

@flawr I think "right" is "starting from right, going to the left"

flawr

Is there any good mnemonic for this?

@LuisMendo D'oh

I'm always thinking too much

BTW: mnemonic = Eselsbrücke in german , literally bridge of the donkey

Downgoat

@flawr ( ͡° ͜ʖ ͡°)

El'endia Starman

@flawr How'd that come about? o.O

flawr

@Downgoat If you really want to read something ( ͡° ͜ʖ ͡°) read this.

@El'endiaStarman I have honestly no idea=)

Maltysen

9:46 PM

@flawr "Hermione Granger and a random stranger." roflamo

flawr

The follow up comments are grand=)

@flawr ?

I made an ad :3

@flawr o_O

@CᴏɴᴏʀO'Bʀɪᴇɴ pls link

Cᴏɴᴏʀ O'Bʀɪᴇɴ

9:49 PM

0

A: Community Promotion Ads - 2016

Martin Ender

@CᴏɴᴏʀO'Bʀɪᴇɴ are you aware that these are ads that are shown on PPCG, not ads for PPCG?

flawr

@El'endiaStarman Apparently the explanation that a Mnemonic is basically an extra effort you do for something, the same is an Eselsbrücke. As donkeys do not like crossing waters (especially fords), people apparently built small bridges just for the donkeys. So the literal Eselsbrücken and the Eselsbrücken nowadays are just something that required extra effort, but would theoretically not be necessary.

Maltysen

@CᴏɴᴏʀO'Bʀɪᴇɴ isn't that the wrong type of ad, these ads get displayed in ppcg

shit bearmonkeyed

Cᴏɴᴏʀ O'Bʀɪᴇɴ

oh

dang

oh well

Martin Ender

you're looking for this post: meta.codegolf.stackexchange.com/questions/8389/…

El'endia Starman

9:50 PM

@flawr Wow. Convoluted but makes sense.

Martin Ender

although even for its intended use your ad has the serious flaw that it contains no link to or even the name of this community

Cᴏɴᴏʀ O'Bʀɪᴇɴ

sure it does

"code golf"

Martin Ender

...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

oh, you mean explicitly

flawr

@El'endiaStarman Well my "translated" explanation also probably is not the best^^

Sherlock9

9:52 PM

@Maltysen "bearmonkeyed"?

Maltysen

@flawr i'm still laughing from the comments, thanks, this just made my day

Cᴏɴᴏʀ O'Bʀɪᴇɴ

chat.stackexchange.com/search?q=bearmonkeyed&room=240

El'endia Starman

NinjaBearMonkey

6.8k 3 15 57

Sherlock9

Ok, I'm still not sure why "bearmonkeyed" is a thing

El'endia Starman

It's an allusion to "ninja'd".

Downgoat

9:57 PM

@Sherlock9 first part of his name is ninja as in ninjad

Zgarb

@flawr Interesting. In Finnish, a "donkey's bridge" (aasinsilta) means a convoluted way of changing the subject, that seems like a non sequitur but can be explained like it isn't.

I wonder if there's a connection.

Luis Mendo

That's interesting!

Zgarb

My dictionary translates it as "awkward transition".

El'endia Starman

@Zgarb Is that the word/concept you would use for when a conversation goes from one topic to another, totally unrelated topic by way of a chain of related topics? Like kids -> playground -> spinny round thing -> circles -> conic sections?

Well, I guess not if it's more-accurately translated as "awkward transition".

Luis Mendo

Maybe it would be your transition without the intermediate steps

So you could explain it away, but it does seem awkward just kids -> conic sections

El'endia Starman

10:04 PM

"Oh, speaking of kids, I just learned a cool fact about hyperbolas the other day!"

4

Luis Mendo

and then you wait for someone to ask :-)

flawr

@El'endiaStarman So what did you learn about hyperbolas?

Zgarb

@El'endiaStarman That would be a really long donkey's bridge.

flawr

Is non sequitur a term used for this?

El'endia Starman

@flawr I just now learned that on the projective plane, a hyperbola has two points at infinity that are kinda the same point, so the whole thing forms a loop.

Luis Mendo

10:05 PM

@flawr It means "doesn't / won't follow" in Latin. It's the name of a type of fallacy I think

El'endia Starman

(I'm reading a book named "Elliptic Tales", which is basically a layman's introduction to elliptic curves, assuming that the layman has at least some math background.)

flawr

@El'endiaStarman Some serious math background=)

Luis Mendo

@flawr I remember your challenge. It looked really complicated, all the math behind that

El'endia Starman

@flawr Not necessarily. The authors start with the degree of a curve in chapter 1, then chapter 2 is algebraic closures. I'm on chapter 3 now: the projective plane.

flawr

@LuisMendo Well the basic idea is quite simple, draw a line and find the intersections=)

Luis Mendo

10:08 PM

@flawr Yeah, that is simple :-)

El'endia Starman

Chapter 10 is elliptic curves over Q.

Luis Mendo

Maybe it's just that the challenge was so long...

flawr

The harder part is then understanding the structure of the groups formed.

(I should say the damn hard part, not only harder)

@El'endiaStarman I did have to work a lot with the projective plane, but I just recently found a nice mental image.

If you first consider the projective line, that is basically just R^2 where you identify all the points on a line throu 0 with one of the corresponding points on the unit circle.

And obviously you can do the same for the projective plane: Take R^3, and press all the points together, from 0 to the outside and vice versa, untill you're left with the unit ball (where you just identify the opposing points)

Whenever you use an affine plane to visualize the projective plane, you always loose an "infinity" point, but basically you could just project the whole thing on an unit ball.

(some glue required)

Also: Then those topological gluing instructions make intuitively sense:

El'endia Starman

Gotta run, but I want to continue this chat.

flawr

@El'endiaStarman Don't trip, have a nice run

=P

sigh math could be soo damn cool without those exams...

Cᴏɴᴏʀ O'Bʀɪᴇɴ

10:21 PM

@El'endiaStarman bai!

@flawr amen to that

Anonymous

I got invited to do Google Foobar!

Maltysen

@Mego \o/

flawr

@CᴏɴᴏʀO'Bʀɪᴇɴ What's going on with your comics btw?

quartata

@Mego If the Data room would stop getting frozen we should probably advertise it in the community ads

@Mego Nice

Cᴏɴᴏʀ O'Bʀɪᴇɴ

@flawr not much. I haven't had a lot of inspiration

flawr

10:24 PM

@CᴏɴᴏʀO'Bʀɪᴇɴ Then it's time for you to get some. Go, hush. We need some new ones.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

ok, ok :)

New Main Posts

2

Q: Convert an Expression to Panfix Notation

I was browsing esolangs, and chanced upon this language: https://github.com/catseye/Quylthulg. One interesting thing about this language, is that it doesn't use prefix, postfix, or infix, it uses all three of them, calling it "panfix" notation. Here is an example. To represent normal infix 1+2 ...

code-golf parsing conversion

quartata

@NewMainPosts That is very weird

Cᴏɴᴏʀ O'Bʀɪᴇɴ

quite

it's like antigolf

Maltysen

@quartata this is what the people who made it say about it:

> It is perhaps worth noting that, like postfix, panfix does not require the deployment of arcane contrivances such as parentheses to override a default operator precedence. At the same time, panfix allows terms to be specified in the same order and manner as infix, an unquestionably natural and intuitive notation to those who have become accustomed to it.

flawr

10:29 PM

But funnily enough, I think it is quite readable!

ambifix: the same as panfix without infix

idefix: when a dog ate the operators (sorry, that pun only works in Danish, German, Swedish, Dutch, Norwegian and Finnish)

@El'endiaStarman Did you know the word spectrahedron? It sounds cool and it is cool.

quartata

@flawr The pun also works if you have good taste

like me

(I presume you're referring to en.wikipedia.org/wiki/Dogmatix)

Sherlock9

@Downgoat Belated "oooh"

Anonymous

@quartata Nobody ever used it besides us ¯\_(ツ)_/¯

Anonymous

(wrong emote macro)

flawr

@quartata Sure=)

Sherlock9

10:40 PM

@flawr I think the same. There's a lot of mathematical that just isn't being taught in a classroom. Like fun and creativity. IMO of course

flawr

I still love most of the math I'm working on, but I just realized it would be so much fun if you had the time to play around with it more, instead of just stuffing as much as possible in your brain for the exams and then repeating the same process for the next lecture.

@El'endiaStarman I just read this, helped me a bit understanding it math.berkeley.edu/~bernd/WhatIsSpec.pdf

@El'endiaStarman PE312 is cool. So far I have found an explicit formula, but the computation is still hard to do. If you'd ever like to discuss it, please let me know=)

quartata

Ooh, that is interesting

flawr

10:55 PM

@quartata Do you also have a PE account?

quartata

Ancient one yes

I wonder if I even remember the password

Maltysen

@flawr cool

is that why you were wondering about the a^(b^c) mod m thing?

flawr

@Maltysen yep=)

Well this holds for anyone: If you'd like to discuss this challenge, I'd gladly join!

But I don't want to spoil the fun.

@quartata Wanna add?

New Sandboxed Posts

0

A: Sandbox for Proposed Challenges

Sinusoidal codechallengetrigonometrygraphmath We all know how cool sinusoidal functions look. I mean, they repeat for all infinity (and beyond) and create these really awesome curves that just completely mesmerize me. Therefore, I thought of creating a challenge where, given a sinusoidal functio...

New Main Posts

11:11 PM

0

Q: Calculate the partitions of N

Your challenge is simple: GIven an integer N, ouput every list of positive integers that sums to N. For example, if the input was 5, you should output [1, 1, 1, 1, 1] [1, 1, 1, 2] [1, 1, 3] [1, 2, 2] [1, 4] [2, 3] [5] These lists do not have to be output in any particular order, nor do the nu...

code-golf math integer-partitions

Dr Green Eggs and Iron Man

That was fast.

Dennis

11:24 PM

@DrGreenEggsandIronMan Produce the correct output it still underspecified somehow. How much time can it take? How much many can we assume is available?

R. Kap

So, what do you guys think of my proposed challenge?:

0

A: Sandbox for Proposed Challenges

Sinusoidal codechallengetrigonometrygraphmath We all know how cool sinusoidal functions look. I mean, they repeat for all infinity (and beyond) and create these really awesome curves that just completely mesmerize me. Therefore, I thought of creating a challenge where, given a sinusoidal functio...

Dr Green Eggs and Iron Man

11:36 PM

@Dennis Is it really though? I picked a really small threshold.

Cᴏɴᴏʀ O'Bʀɪᴇɴ

11:54 PM

any more feedback on this?

0

A: Sandbox for Proposed Challenges

Language succession answer-chaining string Given two words (two strings of lowercase-only letters separated by a space) as input to a program PX written in language X, output two programs in languages Y and Z such that program PY outputs the first word and program PZ outputs the second word. Yo...

Transcript for