Mathematics - 2014-12-04 (page 3 of 9)

Awesome. We usually have at the most one week of holidays, sometimes less. Last year, I only had about 3 days of holidays after my exams. Not much time to do something :-(

Venus

@KajHansen You too? Where do you plan to spend your holiday?

Kaj Hansen

Just at home. Nothing special.

Venus

9:18 AM

@Huy That sucks

Huy

@Venus: Just the way things work at my uni.

Venus

@KajHansen You should hang out. It's winter there now, right?

Kaj Hansen

Indeed it is, haha

Venus

@Huy Haha, poor you

Huy

@Venus: It's okay, I usually just go on holidays during lecture-time.

Venus

9:20 AM

I envy you guys. There are no snow here T_T

Huy

@Venus: I'm going to go snowboarding next week. =)

Venus

@Huy For me, holiday is when there's no homework :D

Huy

@Venus: I don't have homework. Just work. :D

Venus

@Huy I'm going to go swimming I guess

Huy

@Venus: You mean now?

Venus

9:22 AM

No, on holiday

It's raining here

Huy

Oh, okay. I don't really like swimming. Somehow, my stamina is a lot worse when swimming than when doing other physical activities.

Venus

Bad weather

Huy

Alright, I have to leave now. Have a nice day, @Venus, @KajHansen.

Kaj Hansen

See you around

Venus

Actually, girl is never swimming :D

Bye @Huy

Twink

9:26 AM

yesterday, by Ted Shifrin

This is not supposed to be a dating room ... and this verges on that ...

Committing to a challenge

Why do you post this Twink?

It was originally said in regards to Huy and Venus, so I suppose it is fitting

Twink

hi @Committingtoachallenge what's up :)

Committing to a challenge

@Twink Nothing much, just feeling sad about my sleep patterns and my corresponding lack of exercise

Twink

Really? I did't know! lol

well I repeat Ted's comment

and I'm agree

they should exchange whatsapp

Committing to a challenge

I admit, I don't talk about Math here as much as I should, but at the moment it is all of my social interaction, and I don't have many Math questions to ask

Twink

9:31 AM

why?

Committing to a challenge

I will be up all night tonight until tomorrow at 8pm. It is 7:30PM at the moment

Twink

you don't have friends?

Venus

@Twink @Committingtoachallenge Please, we were just chit-chatting, nothing more. I have no intention to date anyone else here. I have a boyfriend already

Kaj Hansen

I don't talk math a whole lot in here.

Twink

@WillHunting :D

Will Hunting

9:31 AM

@Twink Hi.

Twink

@JasperJoy :D

Committing to a challenge

@Twink I do, but I live very far away, and don't have my license because I moved out of my parents house at 15. My girlfriend does have her license, but she is working week on week off, this is her first week on

Twink

I don't have friends in the city I'm living either

Committing to a challenge

E.g. I am alone for another 4 days

Twink

I don't talk for weeks..

Committing to a challenge

9:33 AM

I live 3 hours by public transport from my city

Twink

for months...

Committing to a challenge

So I suppose I could do it, but I am also absurdly poor

Twink

for years...

Will Hunting

@Committingtoachallenge What license?

Twink

I'm poor too, now

Committing to a challenge

9:33 AM

@Twink That is sad :\. I can't remember, are you doing uni?

Twink

yes

Committing to a challenge

@WillHunting Drivers licence I meant to say sorry

Twink

@Committingtoachallenge what's wrong with you driving record?

Committing to a challenge

@WillHunting We get our learner licence for a year, starting at 16, and parents get there kids through it

Will Hunting

@Committingtoachallenge What does licence have to do with moving out at 15?

Committing to a challenge

9:35 AM

I moved out before I could get any training for that year

In Australia we need 100 hours supervision by a person on their open licence for a year(E.g. 22 years old), I had noone

Will Hunting

@Committingtoachallenge Why did you move out?

Committing to a challenge

@WillHunting Overly personal sorry

Twink

@JasperJoy you said DanielFischer that he should put up a new picture for us. You should give the example

Will Hunting

@Committingtoachallenge I see. I have problems with my father too. He drove me mad, in a way.

@Twink You should do it first, bro.

Committing to a challenge

@WillHunting I won't say any more, because my parents know my website and could locate these transcripts if they searched(seriously doubt it but still)

Twink

9:36 AM

you first, since you asked DanielFischer to do it

Committing to a challenge

@KajHansen You talk more math than I do

Will Hunting

@Twink I am too shy, lol.

Twink

@Committingtoachallenge don't be so paranoic

your parents are not gonna stalk you

@WillHunting I'm sure I'm shyer

Committing to a challenge

@Twink Well my website is my current username here, and the website links to M.SE

Twink

is that correct? "shyer"? lol

Committing to a challenge

9:38 AM

So it isn't really paranoia, and neither of my parents work

Twink

here comes @beginner

he's 11

beginner

dont say that!

Twink

sorry

he's 13

beginner

yes

Twink

:)

beginner

9:39 AM

12th may 2001

Twink

sure

beginner

i started dummit and foote

Twink

@JasperJoy why did you change your user name?

beginner

who is jasperloy?

Will Hunting

@Twink I am paranoid.

beginner

9:40 AM

will hunting is jasperloy

Twink

@JasperJoy why does it have to do with changing your username?

beginner

@kaj dummit and foote covers injection,surjection,bijection,left inverse and right inverse on page 2

Will Hunting

@Twink People are less likely to stalk me.

Kaj Hansen

Those are important concepts @beginner

Twink

@WillHunting tell me your name

Will Hunting

9:42 AM

@Twink You already know it, but you keep spelling it wrongly, lol.

beginner

they were many chapters in another book i looked at @kaj

Twink

@WillHunting I'm sorry, what is it?

Will Hunting

@Twink @beginner has gotten it right.

Twink

how did he know?

beginner

jasper loy keeps coming up, is he a famous mathematican?

Twink

9:43 AM

I'm afraid he's a spy

Will Hunting

@beginner No, he is 33 years old, jobless and mentally ill.

beginner

oh why does he come up?

Twink

@WillHunting my life is worse than yours, don't worry

beginner

because he is a spy

Twink

@beginner shush, we're talking about adult things

Will Hunting

9:45 AM

@Twink I hope you find a nice job soon, and also a nice partner, lol.

beginner

@kaj injection means that we don't have two arrows come from an element of the domain, surjection means that all of the range targets are hit and bijection means both

Twink

@WillHunting thanks, I hope you do too

but I doubt I find a nice job, maybe I'm gonna sell tomatoes or hot dogs

@WillHunting is this you? linkedin.com/in/jasperloy

Will Hunting

@Twink I hope to get well, go to another country for grad school, find a job there and never return to my country, because it sucks.

Twink

I'm stalking you, lol

Will Hunting

@Twink No, it is not.

Twink

9:46 AM

@WillHunting tell me your last name

Venus

@KajHansen Non-math question, I hope you don't mind. At what age a girl or boy in US is considered as an adult person?

Will Hunting

@Twink You already know, lol.

Twink

@WillHunting hmm

Kaj Hansen

You can think about it in those terms. I think $f:A \rightarrow B$ is surjective if, for any $y \in B$, there is an $x \in A$ such that $f(x) = y$.

Injective if $f(x) = f(y)$ implies that $x = y$.

Bijective if both injective and surjective.

Twink

@WillHunting where are you from?

Will Hunting

9:48 AM

@Twink It's a secret.

Twink

but I'm your friend :(

well

you're my friend :( I meant

in my imagination

Will Hunting

@twink Will you tell me your real first name and last name in email?

Kaj Hansen

@Venus, 18 or 21. At 18, we are tried as adults in court, and we can do most things adults can except drink alcohol. It's kind of hard to answer your question.

beginner

@KajHansen i wont bother you any more until after your finals i promise :)

Twink

@WillHunting will you stalk me?

Will Hunting

9:49 AM

@Twink Maybe.

Twink

my name is very common

Will Hunting

@Twink You can tell me in email, jasperloy at outlook dot com.

Twink

:D

I already told you here

Venus

@KajHansen So they can only drink alcohol at 21

Will Hunting

@Twink You only said half of it.

Twink

9:50 AM

:D

Will Hunting

@Twink Can you send me an email so that I know your email?

Kaj Hansen

Indeed. So because of that, there are two sort of "coming of age" birthdays.

Venus

@KajHansen Does "do most things adults can" mean everything as long as it's legal?

Twink

@skullpatrol where are you pal? :( I miss you

Kaj Hansen

Yes, that's what I mean. Actually, there are a few exceptions. Nowhere in the US can you drink under 21. In some states, you cannot buy a handgun before you are 21. In some states, you can't gamble below 21.

As far as federal laws go, drinking is the only difference as far as I know.

Will Hunting

9:56 AM

@Twink I just sent you an email.

beginner

you email eachother so you are spies

i just learnt this word a few days ago, you are doing espionage

Twink

@WillHunting I already answered it

Venus

@KajHansen Oh OK, I get it now. One more question, supposed that I'm 23 y.o. and I'm a college student so can I bring my gun to campus?

Anonymous

Hey

Test

Twink

@WillHunting can I email you when you leave this forum in 2015?

Kaj Hansen

9:58 AM

Nope. That is illegal regardless of age @Venus

Anonymous

@Venus you are heavily distracted girl!

Will Hunting

@Twink Yes, you can always email me. I will always reply if I am alive and not in hospital or in jail.

Anonymous

Does mathjax render on iPad?

Venus

@KajHansen Hhmmm, we cannot bring a gun to college. Where else it's illegal bring a gun?

I mean public place

@AshwinGokhale Just curious

Twink

@WillHunting don't even say that

Kaj Hansen

10:02 AM

Most of these are state laws and not federal. So it will vary. It's typically illegal to bring them on campus of any school, into bars, courthouses.

Anonymous

@venus but you are not doing it right

beginner

i almost have 200 rep!

Venus

@KajHansen Thanks for your explanation :-)

Kaj Hansen

mhmm

Will Hunting

@beginner Don't bother about rep. Just come to chat, lol.

Venus

10:04 AM

@AshwinGokhale What did you mean by not doing it right?

beginner

@WillHunting i chat here more than asking questions, but i dont wanna bother kaj until his exams are done

Twink

@WillHunting why don't you have a job?

Will Hunting

@Twink I have been severely mentally ill the past few years, but I am getting better now.

beginner

kaj, balarka and ted are my teachers

Twink

@WillHunting and where do you get money from?

beginner

10:05 AM

have you guys listened to the band 'while she sleeps' it is really good

Will Hunting

@Twink I live with my mum.

Twink

I'm glad you don't live alone

:)

Committing to a challenge

@WillHunting I didn't actually know that

Will Hunting

@Committingtoachallenge There are many things about me that you don't know, lol.

Committing to a challenge

@WillHunting It just seems like something I would have expected to know haha

beginner

10:08 AM

my favorite song is youtube.com/watch?v=ujB7wSVDV9I

at 1:20 it is really cool

Twink

@WillHunting do you fight with your mom?

beginner

twink did you listen to my song?

Twink

because of your mental illness?

Will Hunting

@Twink Not really.

Twink

Ok

Kaj Hansen

10:09 AM

Ugh, metalcore. I prefer death metal.

beginner

i havent heard death metal before

is that metallica?

Twink

guys do you think this sweater is too gay?

Committing to a challenge

@beginner That is thrash metal

Kaj Hansen

At least this isn't just a bunch of chugging, lol

beginner

what is chugging?

Will Hunting

10:11 AM

@Twink It looks good.

Twink

please everybody give me your opinion!

Hmm ok @WillHunting

Will Hunting

@Twink Why did you remove it?

Twink

I thought it had too many colors

Committing to a challenge

Listen to Romance is Dead - Parkway Drive, for chugging in the intro

What death metal do you listen to @Kaj?

Twink

because nobody else was going to give me an opinion

Anonymous

10:12 AM

@Committingtoachallenge did you check your blog?

Twink

they ignored me, lol

Committing to a challenge

@AshwinGokhale Yes I did :)

@AshwinGokhale I haven't had a good look at the list yet

Children of Bodom @Kaj?

Twink

I think it's time to go to bed now

good night everyone

Committing to a challenge

@Twink Good night Twink

Anonymous

Isn't it difficult for you to manage time?

beginner

10:15 AM

goodnight twink

Kaj Hansen

@Committingtoachallenge, I love melodic death metal. At the Gates, In Flames, Dark Tranquillity, Kalmah, Amon Amarth, Children of Bodom, Black Dahlia Murder, etc. This is probably my favorite song right now:

https://www.youtube.com/watch?v=d40MGrd-5Is

Twink

good morning for you :p

Will Hunting

I now have 49 email contacts, mostly from SE, lol.

Committing to a challenge

@AshwinGokhale I am doing the Pomodoro technique at the moment, and I have a free schedule, but my sleeping patterns are ruined :\

Anonymous

How many pomodro's in a day?

Committing to a challenge

10:16 AM

@Kaj I love Children of Bodom, but i haven't had much death metal yet. I will check these out, thank you. I have noone who shares my music taste

@AshwinGokhale Today only one, but I woke up at midday. I had three Tues and Wed

Kaj Hansen

Coincidentally, I'm wearing a Metallica shirt right now. You can't go wrong with some good ol' thrash.

Committing to a challenge

@KajHansen xD. True that. This Kalmah song sounds great

Anonymous

Each Pomodoro equals half an hour right?

Committing to a challenge

@AshwinGokhale I will aim for four tomorrow

@AshwinGokhale A pomodoro is 100 minutes, so 1 hr 40

Kaj Hansen

Their guitar work is incredible. I mean incredible. Every song on this album is just as good. Try this next, perhaps:

https://www.youtube.com/watch?v=IgJyahHXdo8

Anonymous

10:18 AM

What topics are they teaching in school?

Committing to a challenge

@KajHansen I am always amazed when I miss these great bands for so long

@AshwinGokhale I am on holidays at the moment, but I will be doing: Complex Analysis, Functional Analysis, Coding Theory, Abstract Algebra and Optimisation theory. Overloaded next semester

Anonymous

@Committingtoachallenge everything is synced?

Committing to a challenge

@AshwinGokhale What do you mean sorry

tothebestof.com/band/kalmah? Have you heard all their best @kaj Do you agree with that order(somewhat)?

Were you eastern US Kaj?

Anonymous

@Committingtoachallenge Why haven't you included Probability theory and stuff in your list?

Committing to a challenge

Or PST

@AshwinGokhale I have actually done a good amount of probability and statistics and it isn't for me. I can appreciate it, but I don't enjoy it

Anonymous

10:22 AM

@Committingtoachallenge I got some serious starting problems lol

Committing to a challenge

@AshwinGokhale Mainly I am starting topics that do interest me again, so I can learn them properly

Huy

How would you call "linear" geometric objects, such as lines, planes and their generalisation for higher dimensions?

Committing to a challenge

@AshwinGokhale You mean motivating yourself to start texts xD?

Kaj Hansen

Have some good starting songs:

For Dark Tranquillity, try this: https://www.youtube.com/watch?v=DecqLoCFBXE
Amon Amarth: https://www.youtube.com/watch?v=bjRUee5S44w
At the Gates: https://www.youtube.com/watch?v=uqMCvsTSKWE
Black Dahlia Murder: https://www.youtube.com/watch?v=Pq-Ru2b4JCQ
In Flames: https://www.youtube.com/watch?v=O32Ud0s-0aQ

Committing to a challenge

@KajHansen You don't like metalcore though Kaj?

Anonymous

10:23 AM

@Committingtoachallenge yes

Anonymous

@Huy hey

Committing to a challenge

@AshwinGokhale Yeah I find myself able to start very easily when I am socially isolated

Huy

Hi, @AshwinGokhale.

Kaj Hansen

It's alright in moderation @Committingtoachallenge

Anonymous

@Committingtoachallenge is it good for me to leave SE for some time until I am very good at Mathematics?

Committing to a challenge

10:25 AM

@AshwinGokhale I think the chat is good, since you hear how to talk Math here

Kaj Hansen

I think a lot of those songs are off Kalmah's newer albums, which I'm not really familiar with.

Committing to a challenge

@AshwinGokhale It also motivates you to keep going

Anonymous

@Committingtoachallenge Ib.b...but I don't see any math in the chat

Committing to a challenge

@AshwinGokhale Not right now ahaha

Anonymous

@Committingtoachallenge 200 mg of caffeine is enough for me to keep myself motivated lol

Committing to a challenge

10:27 AM

First two bands sound great thanks Kaj

@AshwinGokhale I am pushing a good 300 a day optimally I think

committingtoachallenge.wordpress.com/statistics/…

Kaj Hansen

Sure thing

Anonymous

The fact is that I don' t get most of the math that people do here since I am just beginning at it

Committing to a challenge

@AshwinGokhale I feel the same way

@AshwinGokhale I will probably feel that way until I have done my first 5 texts

Kaj Hansen

Neither do I @AshwinGokhale

Anonymous

@Committingtoachallenge but you are at least admitted to a math course

Committing to a challenge

10:29 AM

@AshwinGokhale Doesn't help until third year I think xD

Anonymous

@Committingtoachallenge 3rd year?

Anonymous

Did you change your branch from engineering to math this year?

Committing to a challenge

@AshwinGokhale No a year and a half ago I changed over

Venus

So we have Gossip Guys here, haha

Committing to a challenge

@AshwinGokhale I had done Math in my electrical engineering course, but didn't bother learning 'why' at any point really, ruining my memory

@Venus Us?

Venus

10:32 AM

Glad the peskier one is out

Committing to a challenge

@Venus Balarka?

beginner

am i the pesky one??

Anonymous

I love calling Venus a distracted girl lel

Venus

@Committingtoachallenge Yup. You all Gossip Boys. haha. NO, not him

Committing to a challenge

@AshwinGokhale So what year of Mechanical?

@Venus Who is peskier?

Venus

10:34 AM

@KajHansen Your music almost made me deaf :D

Anonymous

2 nd year began

Committing to a challenge

@AshwinGokhale So you would just be out of the generalised Engineering now then?

Anonymous

@Committingtoachallenge I got 3 years to go

Committing to a challenge

@AshwinGokhale 'sustainability', basic mechanics etc

@AshwinGokhale My girlfriend is in her 4th year of Mining Engineering

Venus

@Committingtoachallenge The one with stupid ava

Kaj Hansen

10:35 AM

@Venus, haha.

Of course, I listen to a lot more than just death metal.

Committing to a challenge

@Venus Stupid avatar hmmmm

Anonymous

@Committingtoachallenge I am studying material science,metallurgy and stuff

Committing to a challenge

@AshwinGokhale Oh my girlfriend is doing Mining and Geotechnical, which has some metallurgy components

Venus

@KajHansen You should listen 1-D :P

Anonymous

@Committingtoachallenge unlike you I cannot switch to math now

Committing to a challenge

10:36 AM

@Venus Oh we love that.

Kaj Hansen

Eh, I'm good

Committing to a challenge

@KajHansen At the gates are great

@AshwinGokhale Why is that?

@AshwinGokhale Scholarships?

Anonymous

@Committingtoachallenge It is India

Venus

@Committingtoachallenge You should listen Bieber

Committing to a challenge

@AshwinGokhale India it is harder to switch?

@Venus I have heard a few songs from Bieber trying to be unbiased, and I didn't like it at all

Anonymous

10:38 AM

@Committingtoachallenge It is infinitely hard to switch at least for me !

Committing to a challenge

@AshwinGokhale Sucks when you are locked in :\

Well I think I will go and start a pomodoro now guys, so I will be back later(and will essentially be here for another 23 hours

Anonymous

Has anyone listened to Abel korzeniowski?

Committing to a challenge

Probably burn through most of(or all of) the list Kaj has given me

Venus

@Committingtoachallenge Bieber or the songs you didn't like it?

Anonymous

@Committingtoachallenge Even I will do a pomodoro from today lol

Daniel Fischer

10:40 AM

Free spam flags

Committing to a challenge

@AshwinGokhale It seems pretty good, but I think you should try Persevy as suggested by Robert Cardona

@DanielFischer Thanks

Cya guys

Anonymous

Bye

Will Hunting

@ashwin What did you wanna tell me about rebirth yesterday? I don't get it.

Lucio D

Hi @DanielFischer I need assistance with just one question, matter of life and death.

Anonymous

@WillHunting why does that word even exist?

Daniel Fischer

10:43 AM

@LucioD Uh-oh.

Will Hunting

@AshwinGokhale You mean you don't believe in it? That's OK.

Anonymous

@WillHunting I know.It makes sense only in video games

Will Hunting

@AshwinGokhale Well, rebirth is a very common word in the Buddhist literature.

Lucio D

@DanielFischer Yeah that's how it goes. Damn I have to leave now, can I discuss with you later, will you be on chat?

Daniel Fischer

@LucioD Sometimes yes, sometimes no.

Anonymous

10:45 AM

@WillHunting You believe those people who didn't even know earth revolved the sun?

Will Hunting

@AshwinGokhale Well, supposedly, it is not those people but the Buddha himself. And I am sure he did know about the earth and the sun, and much more.

beginner

i think you should never discuss beliefs cause my parents say noone wins

relgious ones i mean

Balarka Sen

Drat.

beginner

balarka is here yay

Balarka Sen

I just can't get that Cech lifting stuff.

Hi there @beginner

beginner

10:49 AM

dummit and foote is hard

it does injection surjection bijection in one paragraph on page 2

Anonymous

Try halmos?

Balarka Sen

@beginner I started it when I was your age.

It isn't hard.

beginner

@BalarkaSen when did you finish it

Balarka Sen

I still haven't finished it LOL

beginner

@BalarkaSen oh haha, i will win then!!!

but still help me :)

Balarka Sen

10:50 AM

OK, @beginner, what are you reading right now?

Anonymous

@beginner you haven't understood the article I gave you yesterday

beginner

@AshwinGokhale which one

Anonymous

@beginner Thurston's advice

beginner

@AshwinGokhale oh yes

Anonymous

Even @BalarkaSen must read it

Balarka Sen

10:51 AM

What's it about, @AshwinGokhale?

Will Hunting

@beginner Where are you from, if it is not a secret?

beginner

i understood it, but i can do exercises so i am learning

Anonymous

@BalarkaSen how old are you?

Balarka Sen

15 or so @AshwinGokhale

beginner

@WillHunting my parents tell me not so say so it is secret :)

Will Hunting

10:52 AM

@beginner OK. My location is also a secret.

Balarka Sen

everyone knows where you are from @WillH

Anonymous

@beginner can you give balata the link I gave you yesterday?

Venus

@DanielFischer @WillHunting If we downvote someone's answer, will he know who did it after seeing our profile page?

Will Hunting

@BalarkaSen I live in Antarctica currently, lol.

@Venus He can only guess but not be sure.

beginner

arxiv.org/pdf/math/0503081v1.pdf

Will Hunting

10:54 AM

@Venus He can see that your downvote count has increased by 1 and your rep has decreased by 1, if he compares past and future.

Committing to a challenge

But if you downvote a heap, he could never know.

Anonymous

@Committingtoachallenge you were supposed to be reading now lel

Venus

@WillHunting So, he can't see our reputation history which has a record for downvoting, right?

Balarka Sen

I have absolutely no patience to read though that 12 page article just at this moment @Ashwin. What's the point you are trying to arise?

Will Hunting

@Venus He cannot see it.

Committing to a challenge

10:56 AM

@AshwinGokhale I made food first haha, but I am starting in a min

Anonymous

Read point 6 @BalarkaSen

Committing to a challenge

Okay bye now, starting

Anonymous

Me too lol bye

Venus

Heave a sigh of relief

Balarka Sen

Skimmed through it @Ashwin. It's about that we shouldn't hurry when it comes to mathematics.

Anonymous

10:57 AM

Yes @BalarkaSen

Balarka Sen

I still don't see the point you are trying to arise.

Will Hunting

@beginner All things can be discussed peacefully.

beginner

my parents tell me history says otherwise when i say stuff like that

they said in a perfect world anything can be done properly, but not this world

or something like that

Balarka Sen

Are you suggesting me not to hurry while studying mathematics? Don't worry, I might get overenthusiastic when grabbed hold of an attracting idea, but eventually I'll slow down by the rush of technicalities @Ashwin

Will Hunting

@beginner Have you done reading and thinking on your own? Don't just listen to what your parents or your government tell you.

beginner

10:59 AM

i always verify with many people

Transcript for

$Mathematics$ Mathematics