Mathematics - 2012-04-10 (page 5 of 5)

t.b.

21:03

Does ummm... nothing give a proof?

Matt N.

Watman Returns.

anon

Maybe he meant to put an x in front of log.

t.b.

@anon: could you please cast a delete vote here?

anon

yup

Matt N.

whew Successfully turned down a dinner invitation (without tears). : )

And then sent one...

Jonas Teuwen

21:15

checks email

Matt N.

: D

Jonas Teuwen

Nope :-(.

Jordan

I can't wait to be done with school

Matt N.

You're too far away, sorry : (

Jonas Teuwen

:P.

Well, you're having the dinner in Zürich, so then I should go there? 8-).

Jordan

21:16

I have five years left of school and I have already gone to school for about 2 1/2 years

Jonas Teuwen

Not that I am in the position to do that.

@Jordan No problem!

Matt N.

@JonasTeuwen Sure, we'll be happy to have you : )

Jordan

Yeah I will only be like $70,000 in debt by that time

Jonas Teuwen

Okie :-).

Jordan

8 years for a 4 year degree, I am awesome

Matt N.

21:18

What degree?

Jordan

computer science

Matt N.

I think I should go to sleep.

Jonas Teuwen

Why?

70k is no problem.

Jordan

Yeah I guess

Matt N.

Because I've had an unproductive day and it looks as if I'm being more unproductive. So I can end this day here. : )

Jonas Teuwen

21:21

That's a good choice. Have a beer before you go to bed? 8-).

Pet the cats?

Matt N.

I'll do that anyway : )

Benjamin Lim

hey

Jordan

I am so incredibly sick of school, it is all so futile

Benjamin Lim

just woke up

Jonas Teuwen

@Jordan I agree! Have a beer.

Matt N.

21:22

Good morning.

Jordan

I like beer

Jonas Teuwen

@BenjaminLim Did you get maggot yesterday?

Benjamin Lim

@MattN Adrenalin still pumping from yesterday

Matt N.

Did you have any interesting dreams about closed maps?

Benjamin Lim

@JonasTeuwenn No I was caught in circles for 5 hours before going to bed

@MattN No but in my mind the whole night was the thought that $X \cong graph(f)$

Jordan

21:23

So I guess before I cry more about how horrible my life is, if I have $-x^2=4$ can I square everything and make is $x^4=16$ and then find x from there?

Jonas Teuwen

You wish.

Benjamin Lim

@Jordan No.

Jordan

Why not?

Benjamin Lim

Multiply both sides by $-1$

@Jordan Multiply both sides by $-1$

You get $x^2 = -4$

Now do you know about complex numbers?

Jordan

That problem was for a box, a box can not have a side length of -4

not really

Jonas Teuwen

21:24

An imaginary box can.

Jordan

what good is an imaginary box?

Jonas Teuwen

Very good for imaginary people!

Jordan

they dont exist

Benjamin Lim

@Jordan No shit. Do you know about complex numbers?

Jonas Teuwen

Then again, neither do you.

You're just a product of this fire water I reckon.

Jordan

21:26

I know a little bit about imaginary numbers

that is the same as complex right?

Benjamin Lim

@JonasTeuwen WHat do you mean?

Jonas Teuwen

I don't know.

Benjamin Lim

@Jordan well yeah, imaginary numbers are just complex numbers without the real part.

E.g. 3+4i is a complex number

Matt N.

@BenjaminLim I think I got used to being embarrassed. Not sure whether I got used to teddy and the idea that there is someone out there who knows my most embarrassing secret or whether I'm generally less bothered about it.

Benjamin Lim

4i alone is an imaginary number.

@MattN It's ok!!!!

Trust me it's ok.

Matt N.

21:28

Yes.

Benjamin Lim

@MattN I just got humiliated yesterday anyway!

Matt N.

: )

Benjamin Lim

@MattN Story of the life of mathematicians

round in circles, confused for 5 hours

Jordan

Well anyways I was suppose to find the area of a box and it reduced into being $x^2=-8000$

Benjamin Lim

@Jordan Check you working again

$x$ is now an imaginary number, you need to check your working again

Matt N.

21:31

@BenjaminLim It's about as ok as standing naked in a crowd...

N3buchadnezzar

@MattN Some actually enjoy that..

Jordan

$4s(8000/s^2) + s^2 = 0$

$3200 = -s^3$

t.b.

Could someone please be so kind and have mercy on this one?

Thanks.

Jordan

man

Matt N.

Good night everyone.

Jordan

21:39

I dont know what is wrong with me, I just panicked and forgot everything on my test

t.b.

Good night, Matt

Jonas Teuwen

@Jordan No problem!

Jordan

What did I do?

Jonas Teuwen

Fail a test?

Jordan

oh probably

I always panic and forget the easy stuff

Jonas Teuwen

21:44

Don't worry. It all is futile.

Jordan

I am beginning to think so as well

what will I get out of 8 years of school besides an education and debt? COuld I not learn these things on my own

t.b.

@JonasTeuwen Jonas at his most constructive :)

Jordan

by going to a larger university it just means my classes will be taught by teachers assistants instead of a professor

Jonas Teuwen

That doesn't really matter.

TAs are usually (if they are good) better than most professors as they still have ideals.

Jordan

It just seems like an immense waste of time, I can teach myself just as well as some kid can teach 300 students at once

Jonas Teuwen

21:45

I never went to classes, so shouldn't be a problem.

Tyler Bailey

Hahahaha

Jonas is a role model :)

Kannappan Sampath

Can someone help me how to write two layers of conditions in TeX under the sum, please?

Jonas Teuwen

@KannappanSampath \stackrel I think.

Jordan

So you paid like $80,000 to skip classes?

Jonas Teuwen

Education is way cheaper in Europe.

I paid 3000€ to skip clases.

Kannappan Sampath

21:47

@JonasTeuwen A construct please?

Jordan

you paid the ultimate price Jonas, your freedoms and liberty

How many assault rifles do you own? Probably none

Jonas Teuwen

Yeah, none. I'd probably just shoot myself in the foot.

Jordan

and anyone else if they feel threatening to you, that is called liberty

t.b.

@KannappanSampath \frac{\pi^2}{3}=\sum_{\substack{n \in \mathbb{Z} \\ n \neq 0}} \frac{1}{n^2}: $$\frac{\pi^2}{3}=\sum_{\substack{n \in \mathbb{Z} \\ n \neq 0}} \frac{1}{n^2}$$

Jonas Teuwen

@KannappanSampath Oh, I was just checking.

@Jordan I actually never have that.

Or at least not in such a sense that I felt like my life was in danger.

So no problem!

Jordan

21:49

only Americans are born with liberty

Jonas Teuwen

I know.

Yes, stackrel doesn't resize the text.

Was checking old code.

But usually, that would be a reason for me to write in the text over what the sum is taken.

@Jordan The liberty to have very high debts before even starting to work.

t.b.

@KannappanSampath and here's a useful website and in particular a very useful document

Big Picard for this sure feels like nuking mosquitoes, no?

Jonas Teuwen

Great!

Jordan

If you didnt want debt you should have been born rich

Kannappan Sampath

Thank you @tb @Jonas.

Jonas Teuwen

21:55

@KannappanSampath But teddy has a point, check out the amsmath document, it contains a lot of useful information.

Kannappan Sampath

Sure, I know that is a result of getting annoyed with my asking TeX questions one after the other. But, never mind.

Jonas Teuwen

@KannappanSampath No, no. You should read it because then you know about things that you didn't even know were possible ;-).

I don't mind answering such questions, but first RTFM perhaps.

t.b.

What Jonas said.

And even what Jonas added

Kannappan Sampath

@JonasTeuwen Oh, interesting. Sure, I'll.

Jonas Teuwen

I see professors still using eqnarray...

Kannappan Sampath

21:58

@tb OK. People why make me cry? :'(

Jonas Teuwen

But maybe physics journals don't include amsmath.

@KannappanSampath Don't be such a wuss 8-).

Jordan

So is calc 2 harder than calc 1?

Kannappan Sampath

@Jordan No, it is easier that Calc 1.

It is very easy.

Jordan

good

because I am not doing well at all in calc 1 and I need a really good grade in calc 2

t.b.

@KannappanSampath You do that quite often and it looks a bit strange to me. I don't think it is proper English to contract things like "sure, I'll" or maybe "yes, it's" and stop the sentence there. I'd say "sure, I'll do that" or maybe "sure I will".

Jonas Teuwen

22:01

What the... How do you know what "calc 2" entails?

I teach calculus 2 for several studies and they all do something else.

Jordan

That douchebag Stewart wrote my book

Kannappan Sampath

@tb OK. I will take note of this. Thanks for correcting me.

Jonas Teuwen

:-).

We use that book too! 8-).

Jordan

It is the more popular one, so it should be a pretty standard lcass

Jonas Teuwen

Yes, but we can still select topics.

t.b.

22:02

@KannappanSampath there is nothing that was intended to make you cry...

Jordan

I need to get an A in Calc 1, Calc 2 and Physics 1 and 2 and Programming and then I can transfer with the minimum gpa requirement

Is calc 3 easy?

Maybe I can take that to boost my gpa

Jonas Teuwen

@Jordan All calculus is easy. So, no problem!

Jordan

calc 1 is extremely difficult

Tyler Bailey

is calc 3 multivariable?

Jonas Teuwen

They only do three variables, I was like: what the!

Benjamin Lim

22:05

@KannappanSampath what time now in india

Jonas Teuwen

You could as well do most results just with $d$ variables.

Kannappan Sampath

@BenjaminLim 4 in the morning.

Jonas Teuwen

@BenjaminLim Do you know how big India is?

Benjamin Lim

you're nuts to be awake at this hour!!

Jonas Teuwen

I wonder if they only have one time zone.

Jordan

22:05

If I fail calc 1 again or dont get all As I won't graduate until 2018

Benjamin Lim

@JonasTeuwen The time zone is about the same throughout the country

Jonas Teuwen

@BenjaminLim Is it also nuts to get maggot at 4 AM?

Benjamin Lim

like \\pm 1 hour

Kannappan Sampath

@JonasTeuwen But still, we have only one timezone.

Benjamin Lim

@JonasTeuwen no

Jonas Teuwen

22:06

@KannappanSampath Excellent!

Kannappan Sampath

@BenjaminLim NO. I AM GETTING SOMETHING DONE, WHICH I RARELY DO.

Jonas Teuwen

@KannappanSampath No problem dude!

Kannappan Sampath

Whatever. BBL.

Benjamin Lim

bye

have dosa

Jonas Teuwen

Dosa?

Benjamin Lim

22:10

@JonasTeuwen look at wiki page

Jonas Teuwen

@BenjaminLim What kind of drink do you have with that?

Benjamin Lim

chai

i'm off for coffee time

t.b.

Is it reasonable to expect that it is possible to say anything more than $C_\sigma$ acts as permutation on the basis $e^{inx}$ here?

Gigili

I've done something stupid

Jonas Teuwen

@tb Hmm, I don't think so...

Gigili

22:16

Does someone need card number for transferring money?

Jonas Teuwen

I only need to give you my visa number?

Gigili

What can they do with it?

Umm, I gave the number away and now there are some weird transaction reports

Jonas Teuwen

What the...

Jordan

lol

that sounds about right

Jonas Teuwen

I hope you're just trolling.

Gigili

22:18

I hope too

Ishh.

Jordan

credit cards are bullshit, that is why I keep all my money in my closet

$45,000 in cash

Jonas Teuwen

So you have $-25,000?

Jordan

No I have like $70,000 in assets

$25,000 in assault rifles

Gigili

I hope you don't say closets are bullshit one day

Jordan

I lied I haven o cash

Gigili

22:22

Too late, I'm on the way to your home

Jordan

are you male or female?

Gigili

Does it matter?

Jordan

Yes, this is acceptable if you are a female, otherwise no you may not come over

Gigili

Oh? That's not fair

Jordan

:(

Gigili

22:25

Why am I so stupid?

Jordan

That is an offensive term actually

Gigili

Flag it

Jordan

Oh I don't care at all, just wanted you to know that people take offense to that

I am never offended by words that dont mean offense

Jonas Teuwen

Nice revision history!

t.b.

@Jordan Really? Stupid is an offensive term when self-applied?

Jordan

22:31

No, it was form the deleted comment

t.b.

I see.

Jonas Teuwen

I'm quite stupid too, but no problem. I don't mind.

t.b.

Well, the pc-thingie went nuts a long time ago but that would have been a new unexpected dimension to it...

I wonder why this guy never votes for the rather complicated answers he gets.

Jonas Teuwen

@tb Hmm, but he gets +1 from me because the answer is very insightful :-).

(Nate that is)

Plus he mentions the Gaussian measure, that deserves +2.

t.b.

I left a comment.

Jonas Teuwen

22:41

I want to investigate the theoretical feasibility of the tractor beam.

Wow, Nate is awesome. He uses emacs, FreeBSD and awesome!

t.b.

Is it just me or is it self-fulfilling prophecy that all math on this page seems broken?

anon

It's like a crazy art project.

Jordan

23:14

I will be in my 30s before I graduate, life sucks

Jonas Teuwen

No problem!

People make to much problems out of nothing 8-).

I prefer to make problems into nothing.

Jordan

I prefer no problems

Jonas Teuwen

Lovely.

Kannappan Sampath

Right. I am done with all the lemmas.

Now, it's one proof and 5 corollaries.

Jonas Teuwen

Ah!

Tyler Bailey

23:19

Oh, only 5? ;p

Kannappan Sampath

You mean, I should have more? But, the problem is it is Combinatorics and this one classifies some objects.

Jonas Teuwen

In my world everything is a theorem or definition.

Tyler Bailey

Nah, that sounds like a lot of work.

Kannappan Sampath

So, I can apply to particular cases and make a million deductions; but in this area of Combinatorics, much of it is with the SF. We have to ask him unravel them.

I mean we know very less.

Very less should have been VERY LESS.

Jordan

What is the point of going to a good university? It isn't like the education is better, the bigger of a school you go to the more TAs teach classes

Tyler Bailey

23:23

@Jordan networking, quite possibly. more opportunities while in school.

Jonas Teuwen

Didn't you ask this some hours ago?

Jordan

maybe

Kannappan Sampath

@Jordan I'd flag your rant for a moderator. We have had enough of you. This chatroom is not for whining.

4

@Jordan You did ask this distinctly. Mariano, Ben and David patiently told you what matters in life.

Jordan

No I meant specifically why go to an expensive university over a cheaper one

you are just a child

anon

popcorn time

Kannappan Sampath

23:25

@Jordan We don't know. But, IMO all of this was answered previously.

@Jordan Yes, I am. I don't deny it. But I don't whine often in this chat room.

Mariano Suárez-Alvarez

Jordan, cursing here is not a good idea

PLEASE do not do that again

Jonas Teuwen

You are like child, be man kill many bear.

Tyler Bailey

Where's the life advice?

Jonas Teuwen

You can get that with me.

Tyler Bailey

I could use some, especially if it's for free :)

Jonas Teuwen

23:27

What's your question?

Kannappan Sampath

@anon Ended up quite uninteresting, huh?

anon

here I am with a full bag of popcorn and you people decide to be all mature n adultlike.

3

Jonas Teuwen

@anon That sucks :(.

Mariano Suárez-Alvarez

23:44

mathoverflow.net/questions/93715/…

2

Kannappan Sampath

Holy, If it was for real, I would die of heart attack.

anon

Why? It is true. May I get the professor names now? Cruisin' for a bruisin'

Tyler Bailey

His proof of Collatz is 2 pages

quite elegant, if i may say so myself

vixra.org/pdf/1204.0011v1.pdf

I specifically enjoy the second page

Mariano Suárez-Alvarez

I love the handwriting :)

Jonas Teuwen

Or this is an extremely good troll or a crank.

Mariano Suárez-Alvarez

23:49

if it is a troll, it is a pretty lame one, really

Jonas Teuwen

Hmm, that's true.

Jordan

30 minutes went fast

Transcript for

$Mathematics$ Mathematics