@BenjaminLim Or whipper-snapper, if you prefer. : )

@BenjaminLim From your comment I can guess what it is; if I’m right, it’s not even $T_0$.

that is correct. It is so stupid.

@BenjaminLim Because Matt’s command of idiom is very impressive.

@BrianMScott how is it impressive

@MattN youtube.com/watch?v=yHFDa9efCQU

yes

@ClarkKent ok

@BenjaminLim In this case the reference to a phrase from Star Wars that’s become something of a catchword in the U.S.

@BrianMScott Ooh, carrots! munch munch munch

what phrase brian?

@BenjaminLim Young grasshopper.

right.

@BrianMScott now I can guess three (or six) of the hundred movies you saw :)

@MattN I can tell you about lots of idioms/phrases that we have here in australia

Like if someone has done something really stupid

you wanna be sarcastic

good on ya

@BenjaminLim Like "Hey mate, let's throw a snag on the barbie!" : )

@tb @BrianMScott @ClarkKent @MattN Guys watch The Dictator starring Sasha Baron Cohen super funny

Don't like Borat too much.

@MattN Where did you learn about that?

@tb Fewer than a hundred, and I’m familiar with quotations from a lot of movies that I’ve not seen (e.g., Casablanca). I did actually see the first Star Wars movie, though.

@BrianMScott Regarding your answer: you're talking about a nbhd of a set. Is that a typo?

@MattN In australia people like to give nicknames to everything

Lachlan = lochie

@BenjaminLim Not sure. I don't remember. : )

electrician = sparky

Hello everyone

fridge guy = friggie

@ClarkKent You show yours

@Szabolcs Morning.

@MattN tasmania = tassy

brisbane = brissy

I get the idea : )

dean = dino

@MattN I am? Where?

I have a short question---or reference request

Benjamin = Beny

@MattN no not really just ben.

Oh, wait, let me guess.

@BenjaminLim Just joking, don't worry : )

You’re thinking of the definition of a nbhd of $D\in\mathscr{D}$.

Each of those sets $D$ is a single point of $X$.

@MattN devastated = devo

@BrianMScott Doh.

wetsuit = wettie

If it makes you more comfortable, replace $D$-the-point by a new point $p_D$ whose nbhds are $\{p_D\}\cup(D\setminus F)$.

@BrianMScott Can I ask you something

when I do maths I tend to get super overly excited

Of course.

then I lose focus and stuff

@BrianMScott how to calm down?

@ClarkKent they didn't have anything to object to at the point they decided to use \mathbf. See here.

@ClarkKent no

@BenjaminLim I don’t think that I can answer that: I’ve never had the problem, so I don’t have any real feel for what it’s like.

@BrianMScott Would it help if I tell you I have ADHD?

I did wonder, when you mentioned ritalin.

I have some 10000 points on the surface of a sphere, with near-uniform (but not quite) distribution. I need to make a plot of the density of points on the surface of the sphere, where I can "increase the contrast" (i.e. rescale the density) to make the variation in the density visible. Some sort of smooth histogram. I need to use Mathematica, but there's no built-in thing for this, so I'll have to do it myself.

Can you point me to some pages which deal with somthing similar, so I won't have to reinvent the wheel and work out all details myself? I'm thinking of using something like kernel density estimation, except on the surface of a sphere, hopefully avoiding most of the mess that introcuing spherical coordinates will bring (especially because of the 'singularity' at the poles)

I'm interested in the maths, not implementation details, of course.

@BrianMScott some people take it here as a recreational drug and the results are disastrous. But if I have ADHD then how???

@ClarkKent I did not say I can't focus but tend to get overly excited and then that disturbs my brain.

@BenjaminLim Sports?

@MattN I'm possibly playing some tennis tomorrow morning

If you're too exhausted you can't get too excited, I'd assume.

@BenjaminLim Nah, I was thinking marathons or similar, not play.

ok

@Ben: I’m too ignorant of ADHD to feel comfortable offering advice, though I do wonder whether there might be meditation or relaxation techniques that might help.

@BenjaminLim first of all don't get too worked up about having ADHD. It's become far too popular a thing to diagnose...

@MattN I can. In fact, exhaustion frequently makes me unable either to focus or to rest.

@tb I did a diagnosis a few years ago in 2007.

@BenjaminLim the trend dates back to before you were born :)

@BrianMScott Probably you're right. I do meditation but for some reason I get overly excited....

Well, probably I'm just lazy :-)

@tb hmmmmm......

@BenjaminLim Do you recognize it quickly when it happens?

@tb Even my supervisor complains that I get too excited.

@BrianMScott kinda my feet and hands get really cold and I start to twitch a lot.

for some reason either maths gets my adrenaline pumping super high or I become frustrated and become a manic depressive

@BenjaminLim Seems to me that that would be a good indication that you need to take a break and make a conscious effort to relax.

@BrianMScott Like for example that day when I proved that if every prime ideal is maximal then a ring mod out by its nilradical is absolutely flat

my adrenaline was pumping like hell and I could not sleep for 2 hours

But that sounds normal. If I solve problems before I go to bed I can't sleep either.

@MattN I get super pumped up.

The first and only time I was unwillingly sleepless was the night before the first exam of my finals last year...

lucky you...

ok bye all, I have to go for dinner.....

@ZhenLin I learned as a runner that one shouldn’t worry about missing sleep the night before something important: it’s the nights before that that really matter.

@ZhenLin Every single exam I've had at uni, I slept the night before at 4 or something: My neighbour has a lot of loud sex that is really disturbing.

@tb I’ve always lain in bed awake for a considerable while before falling asleep, as far back as I can remember.

@Brian : sorry about my previous comment, I don't know why i was unnecessarily making a complete fool of myself.

@RajeshD Frustration, I expect. Don’t worry about it.

@BrianMScott Interesting. Why?

@ZhenLin Sorry, I’m lost; what’s interesting?

"night before that" etc.?

Oh, okay.

Missing sleep the night before isn’t generally a problem for a healthy person: the effects aren’t felt right away, especially if there’s something to get you going, like a race or an exam.

I want to know how it's possible to be sleepless for a prolonged period of time. And also, if you are, will it go away again? It seems like an incredibly dangerous thing to have.

How prolonged?

Ah, OK. Yes, I suppose so.

@BrianMScott Like for example how you can sleep 2 or 3 hours per day for a week.

The less sleep I get the more likely I am to fall asleep including during the day.

I want to understand how this works.

@MattN I’ve probably at least come close to that a time or two; I don’t recommend it, though.

@ClarkKent I dislike coffee. And cats.

@ClarkKent I probably got about four or five most of the time when I was in the army. Except on Friday and Saturday nights, when I got caught up a bit.

@ClarkKent Do they? What do cats stand for?

Brian, in your answer you say "each point in X is isolated" before we know what topology we have on X.

@ClarkKent I think you come from a different country from me.

@ClarkKent Chambres du chat?

@MattN Can you give me a link, so that I don’t have to dig it up?

@ClarkKent I have never encountered such a room.

Sorry, of course.

@ClarkKent Hmm, I just went there. All I see is a couple of idiots arguing about squid.

@DavidWallace What is there about squid that’s worth arguing about?

hmm

@ClarkKent Oh. I see.

@ClarkKent That's octokitties!

@BrianMScott Ah never mind.

@MattN Are you sure?

@BrianMScott No, I'm never sure of anything.

@MattN I just dug it up. I suspect that you were referring to the place where I was defining the topology on $X$ by specifying that points in $\Bbb N$ are isolated and the other points had such and such nbhds.

@BrianMScott But... I gave you the link up there^

@MattN Was that there originally, or did you edit it in after I stopped looking at it? :-)

@BrianMScott I put it there right after you requested it : )

@BrianMScott Oh. So it's a definition.

snort

@MattN Yes.

i just got reading his wiki page

Carried, if you’re talking about the Erdős.

good one

shrug

@ClarkKent Oxford English Dictionary.

@ClarkKent Yes, one's a bit more elaborate than the other...

@ClarkKent: Next you'll be telling me that tomato is pronounced /təˈmeɪtoʊ/. I really don't care.

Holy monkeys!

@ClarkKent My apologies; you're absolutely right. How confusing!

@ClarkKent I love understatement. :)

hey there

@ClarkKent So sweet!

I would like to know why the Wikipedia page describing the ODE shows a picture of a different dictionary.

@Ilya Hi!!!!

Who's so sweet?

I have a question. Let $X$ be a Polish (topological separable completely metrizable) space. Suppose I want to say that $d$ is a metric on $X$ which agrees with the topology of $X$ and makes $X$ a complete metric space. How can I say it in short?

@Gigili me

@JonasTeuwen HI!!!!

@Gigili Clark Kent, of course.

@Ilya I guessed it might be it.

I need some coffee.

@Ilya I’d just say that $d$ is a complete metric on $X$.

@tb I'm freezing cold. Now we have something to bond over : )

Anyone offhand know the conditions under which local convexity implies global convexity?

@BrianMScott thanks

@MattN It's been extremely cold today.

@DavidWallace Are NZ guys usually quite... direct or is this the case only with our Auckland "bro"? 8-).

@DavidWallace So this room is a candy can.

@ClarkKent who knows. Certainly, not me

@JonasTeuwen Me too but I've run out.

@JonasTeuwen Who's our Auckland bro?

@MattN hi. Is it cold in your Southern Land?

@DavidWallace A PhD student from Auckland in our group.

(here, in NL, that is).

@JM I certainly fancy a doughnut though.

@MattN With mayonaise?

@JonasTeuwen you have only one group in NL? never thought it is that small

So you know one direct NZer, and you want to know if we're all alike? Is that what you're asking?

@Ilya Hi! Yes. shudders

@Ilya We only have one analysis group in Delft!

@DavidWallace Precisely :-). He says, that's how we do this in NZ. So I was wondering...

@ClarkKent Next time say hi like a jest

@JonasTeuwen No, I'm not Dutch enough : D

As I thought the Dutch are quite direct, but holy monkey, he's much worse.

@JonasTeuwen No wonder you drink! Doughnuts with mayonnaise?

@JonasTeuwen Maybe. What did he say that was so direct?

But very cool nevertheless.

Understand that Aucklanders are nothing like other New Zealanders.

@MattN Not this one I have; it's graphite...

Not sure, be quite arrogant to some professors. But he got lucky with one apparently 8-).

"You're so arrogant. I like that!"

@JonasTeuwen Hmm, that seems unethical on the professor's part.

@DavidWallace More Auckward?

@BrianMScott It's just like; there's Auckland, and then there's "South of the Bombay Hills".

@ClarkKent He's probably Dutch.

@ClarkKent I wonder why no one says thank you to you for correcting all misspelling.

(Bombay is just south of Auckland).

The hollandaise is the worst thing I've ever eaten.

You need Belgian mayonaise.

@BrianMScott No! Because I like to have a good drink!

@DavidWallace: Are you from NZ?

I will be in NZ next year!

@TaraB Yes. Just north of Wellington.

@ClarkKent No, in Belgium we say: mayonaise!

And as that is the only real one, the word is mayonaise.

@JonasTeuwen The flavor of hollandaise sticks to the tongue. So cloying... >_<

@JonasTeuwen for how long?

@DavidWallace A couple of weeks!

Now that I'm neither candidate, nor moderator, I can say everything I feel like saying. How nice is to be free.

Up to a month I suppose.

I'll be in Australia next year, and then go to NZ for a conference.

@JonasTeuwen Which places are you planning to visit?

@Gigili The unshackled life is a good one...

@DavidWallace I don't know yet, I think the conference is in Auckland, so probably Auckland first :-).

OK, but don't just see Auckland. It's just a large spread-out city like every other large spread-out city in the world. Make sure you go somewhere else too. Anywhere else, frankly.

@DavidWallace: I'm from Auckland. =] I don't really understand the perception that Aucklanders are somehow different from the rest of NZers.

Come round for dinner if you're in Wellington.

I also want to see the haka and the kiwi!

@ClarkKent I know the feeling. You have my deepest sympathies on the death.

@DavidWallace Yes, that would be nice!

(i.e. "you've seen one city, you've seen them all")

@JonasTeuwen: But DO actually see Auckland!

@ClarkKent Yes.

@JonasTeuwen Best place to see kiwi is the National Aquarium in Napier. Strange but true.

@DavidWallace: Auckland is "just a large spread-out city like every other large spread-out city in the world". No way! How many large spread-out cities have you been to?

@TaraB What would you recommend for Jonas to do, while in Auckland?

Kiwi's in an aquarium?

@TaraB Lots, actually.

@ClarkKent Now I understand why they don't say thank you to you.

@ClarkKent Superman doesn't need to be thanked.

@JonasTeuwen Yeah, a bit odd. But take my word for it. They've got the level of light exactly right, so that the kiwi think that it's night, and run around heaps, but you can still see them.

Go to West Auckland.

@TaraB Offhand I don’t think that any of the large cities that I’ve visited or lived in have much resembled any of the others.

@BrianMScott: Same for me.

Auckland has no interesting places to visit, I was bored to death when I was there.

@Gigili: I highly doubt you visited everywhere in Auckland.

@Gigili Auckland has many interesting places to visit.

It's absolutely huge.

I'm pretty sure I did.

But the rest of NZ has more.

At least they said so.

@DavidWallace: Yes, but since I've found that most people who visit Auckland go away without a positive impression of it, I have started to try to encourage people to actually see the good bits.

@Gigili Who was "they"?

I know that you can find just as good beaches and bushwalks and everything elsewhere in NZ.

But I would like people to realise that Auckland does have those things.

Oh, I'm pretty sure I will like it anyway.