Mathematics - 2013-04-26 (page 4 of 5)

somaye

9:00 PM

@Old John

what is your idea about this?

shrudinger

or solitons wave

?

Vrouvrou

@Nimza

3

Q: Green's function for third order boundary value problems

How to find the Green's function $G(t,x)$ for the BVP consisting of the equation : $$u'''(t)=0 , \quad t\in (0,1)$$ and BC : $$u(0)=u'(p)=\int_q^1 w(s)u''(s) ds =0 $$ where $\frac12 < p<q<1$ are constants . they say that $$G(t,s)=-t(p-s)\chi_{[0,p]}(s)+\frac{(t-s)^2}{2}W(s)\chi_{[0,t]}(s)+\f...

Nimza

@somaye do you know a lot about KdV?

Arkamis

Spectacular. From my professor's email regarding our final exam:

(paraphrased) Here is a big hint: I will ask you to prove something about the gamma function.

Old John

@somaye Sounds very interesting, but unfortunately, I have never read up about solitons at all :(

Charlie

@Arkamis O.o

somaye

9:03 PM

i want to have alotof article

Nimza

@Vrouvrou why have you tagged it as a variational calculus problem?

somaye

untill i could recive shulrshi

p

Old John

@somaye You want to publish a lot of articles yourself?

somaye

from US uni

yes

i did one

at sientific bulltien

when i was student

Arkamis

Like, oh, just something about the Gamma function. NOT THAT THERE'S A BAZILLION THINGS ABOUT IT

Old John

9:04 PM

Getting papers published in reputable journals is hard work!

Charlie

@Arkamis hahahaha }:)

somaye

bucharset journal

yes

i worked about it roo much

do you konw finite element?

@Old John

Raindrop

@Kasper math.ucla.edu/~robjohn/math/mathjax.html

Old John

@somaye No - I never did much with computional stuff - pretty much all I did was to do with boundary behaviour and asymptotic paths of functions - a lot of topology and measure theory, mostly

Kasper

@Raindrop Oh yes, I know that. Works perfect ! Use it everyday, even at facebook. But I thought there was some video tutorial.

somaye

9:08 PM

how can i accept shularship

from US do you think?

Jonas Teuwen

Accepting is not that hard?

Raindrop

$x^2$

@kASPER great idea!

somaye

yes you are PHD about analysis@Old John

Old John

@somaye I think there might be better people than me here who could help with that - I have never had any connection with the USA - apart from going there once for a holiday!

somaye

Ok no problem

Jonas Teuwen

9:09 PM

The US is nearly impossible if you are not from a good European university or are not in the US already.

somaye

i just ask you

Jonas Teuwen

Also you need almost max score on GRE if you want a good institute.

somaye

ok!

Lord_Farin

@Kasper I've actually contemplated adhering to your suggestion (you're of course free to use a modified version of my template); perhaps you're right.

Jonas Teuwen

(Or the maths specific one).

somaye

9:10 PM

@Old John why you want to learn farsi?

Old John

@somaye Will Jagy will know more than I do about the process in the USA, I think

Lord_Farin

@Kasper It will indeed add the weight of all the votes cast on meta to the comment.

somaye

it is not international language?

Lord_Farin

I'll change it now that I get the intent.

Old John

@somaye I have quite a few Iranian friends here in the UK - and I would one day love to read the work of Rumi in Persian :)

somaye

9:12 PM

@Old John
our historical

Jonas Teuwen

Also you English skills have to be better than their average inhabitant it seems.

There is a large Iranian community here too.

Old John

@somaye One of my friends created this website which I have found helpful

Jonas Teuwen

We have three Iranian board members too.

somaye

hehe i think i know them

Old John

@JonasTeuwen and from my experience, Iranians do the best barnecues in the world

@somaye The guy who created that site is now living in Ireland - I visited him last year

Jonas Teuwen

9:14 PM

@OldJohn We usually hire a BBQ guy, but perhaps I should set one of the board members at work. I am their president after all.

Old John

@JonasTeuwen I would definitely use your powers to do that!

somaye

great

Charlie

hi @Lord_F

Lord_Farin

@Chris'ssisterandpals No I haven't; these general $\Gamma$ integrals aren't really speaking to me, likewise for most special functions.

somaye

i wish you come here onday

Kasper

9:14 PM

@Lord_Farin Ok great :) Yes, some people are like, wt* is going on here, when I post the template. It will help if they understand where this template is coming from.

somaye

one day

Jonas Teuwen

I love special functions.

Lord_Farin

@Charlie Hi. I'm going through your suggestions right now.

somaye

i will be happy

to see you

Chris's sister and pals

@JonasTeuwen I didn't notice that :-)

Jonas Teuwen

9:15 PM

And now it is time for Benjamin Britten.

Old John

@somaye It would be difficult, but I hope to do that one day

Jonas Teuwen

I only love good questions about special functions.

Like ones that get me acknowledgments in books. Yeah.

Charlie

@Lord_Farin cool!

somaye

if you need some one to speak persian i am here for you

:)

Chris's sister and pals

@JonasTeuwen btw, have you ever met it? $\sum_{n=0}^{\infty} \frac{\log(2n+1)}{(2n+1)^2}=-\frac{1}{24} \pi ^2 (3 \gamma+4\log2-36 \log(\text{Glaisher})+3 \log(\pi))$

Old John

9:16 PM

@somaye Thank you - very kind!

Lord_Farin

@Kasper What do you think. Link to the question or the answer?

Jonas Teuwen

@OldJohn One of the guys in our board, an Iranian, is -according to him- only in the meetings to hear me say funny things. 8-).

@Chris'ssisterandpals What a stupid equality.

somaye

your welcome

Old John

@JonasTeuwen That is an interesting sortg of compliment!

Kasper

@Lord_Farin I would say the question, to put things more in context.

Chris's sister and pals

9:17 PM

@JonasTeuwen why is that?

somaye

we have alotof poem

Jonas Teuwen

@OldJohn Last time I did an impression of our... big boss, and he then stated 'you are so hardcore man'.

somaye

you will enjoy

دل در برو می در کف و معشوق به کام است

Jonas Teuwen

I don't know why it is Chris. It just is the way it is. Like flowers and bees, this is a stupid inequality.

somaye

سلطان جهانم به چنین روز غلام است

یdo you konw what mean that?@barnecues

@OldJohn

Old John

9:19 PM

@somaye I have a wonderful book written by an Englishman called "Absorbing Persian" - which has many little quotations from Persian poetry

somaye

did you hear my poem?

not my poem

poem that i read it now?

Old John

@somaye I cannot understand it, I'm afraid :(

somaye

my heart is ready for love

and sharab is ready

Jonas Teuwen

I cannot understand it so much it brings shivers to my spine.

somaye

and love is ready(princeses)

Jonas Teuwen

9:21 PM

The love is ready; now sleep.

somaye

every king will be SLAVE in a this day

this poem is mean that

Charlie

@peter Hey, you will have lot of fun

somaye

but i cant translate it good

Chris's sister and pals

@JonasTeuwen the equality doesn't have a mind, so it cannot be stupid. ;)

Peter Tamaroff

@Charlie $\sup$?

Lord_Farin

9:22 PM

@Kasper Minor issue is that this will prevent the "Welcome to Math.SE!" part.

Peter Tamaroff

@Charlie How great.

Old John

@somaye Maybe one day I will be abled to understand that in Persian!

Charlie

@PeterTamaroff all good

somaye

sure

Chris's sister and pals

@PeterTamaroff a new guest! ;)

Old John

9:23 PM

But now, I have to go - I have to sleep soon, and a busy day tomorrow

somaye

bye for now nice to meet you

Jonas Teuwen

What the fuck. My father is texting me.

Old John

@somaye khoda hafez (خداحافظی)

Jonas Teuwen

And states 'give me five, I'm on the potty, will go to pc'.

Old John

Bye all

Lord_Farin

9:24 PM

@OldJohn Bye!

Jonas Teuwen

Bye bye.

Kasper

@Lord_Farin What do you mean, they will likely scroll down to the answer right ?

Peter Tamaroff

Hmmm....?

Old John

Bye @JonasTeuwen @Lord_Farin

Lord_Farin

@Kasper Yes, but the link is so long that it brings the comment to the character limit.

Charlie

9:25 PM

@OldJohn Bye!

@Lord_Farin goo.gl ?

@OldJohn Bye.

@OldJohn No love?

@Kasper Good one. That'll yield ample character space (at the cost of obscuring that the link is MSE-internal).

somaye

bye @Jonas and every one

Charlie

9:26 PM

@Lord_Farin did you like any of my songs?

Peter Tamaroff

Kbai....

Lord_Farin

@Charlie Listening currently :)

Chris's sister and pals

@Lord_Farin they didn't speak too much to me either.

Kasper

Btw, here is an example to illustrate what I meant:
http://math.stackexchange.com/questions/373544/how-to-show-that-u-and-v-have-continuous-partial-derivatives-at-x-0-y-0
(note that I have deleted the template after the OP edited the question a bit)

Lord_Farin

IMHO @exploringnet is just in the opposing camp. Feel free to ignore him.

shobon

9:28 PM

yeah I really think you guys are trashing the site with your anti-question pastes

Peter Tamaroff

@shobon What?

Lord_Farin

@shobon Not again.

somaye

hey i told bye!

@charlie @ Jonas and other friend

Lord_Farin

@somaye Sorry! Multitasking isn't good for humans :). Bye.

somaye

:(

Kasper

9:30 PM

@Lord_Farin Hm.. 17 year old indian boy if I check his profile :p

Charlie

@somaye Bye, Somaye

Peter Tamaroff

@Charlie I am waiting to be amused.

Lord_Farin

@Kasper Link added.

Charlie

@PeterTamaroff it's gone, but you can take a look to transcript

Kasper

@Lord_Farin Another thing, I've been around MSE for many hours today, and seen many questions. I'm not sure exactly, but I think I've posted around 15-30% of the question I readed this template. None of them got closed. I did saw some question (2 I guess) mysteriously being deleted out of nothing tough.

Charlie

9:34 PM

@Kasper oh

Kasper

@Lord_Farin On the meta everybody seems like, let's close those questions, but in reality, nobody is doing anything.

Charlie

hmmmm

Lord_Farin

@Kasper I for one voted to close on quite a few of your questions. Perhaps the majority doesn't feel an acceptable consensus has been reached yet.

Peter Tamaroff

@Kasper "I read", "I did see", "though".

Charlie

@PeterTamaroff that's what i'm talking about!

Peter Tamaroff

9:36 PM

@Charlie HAHAHA OK

Kasper

@PeterTamaroff I guess I'm making faults, sorry I've got dyslexia.

Charlie

@PeterTamaroff you would have done many if you had appeared earlier

Lord_Farin

@Charlie Admittedly, 45 minutes of pirate anthems is too much to me. But it's nice for every now and then; I absolutely love piano music. Hebrew stuff isn't working for me.

Peter Tamaroff

@Kasper You make "mistakes", not faults. What does it have to do with dyslexia? Does it affect grammar?

Charlie

@Lord_Farin Brian Crain is wonderful

Lord_Farin

9:38 PM

@Charlie So what did you think of my other suggestions?

Charlie

@somaye be careful with peter.

Peter Tamaroff

@Charlie Dafaq?

Lord_Farin

@all: Awesomeness.

Kasper

@PeterTamaroff *installing spell checker *

@Lord_Farin thanks :)

Charlie

@Lord_Farin interesting, one of them i tought a bit too noisy, i didn't like the singer, however, the music is quite rousing

@PeterTamaroff check the damn thing

Peter Tamaroff

9:40 PM

@Charlie The transcript? The full transcript? Ain't nobody got time fo' that!

Kasper

@PeterTamaroff lmgtfy.com/?q=dyslexia

Charlie

@PeterTamaroff READ IT!

Lord_Farin

@Charlie Vocals need to battle up against the other instruments; this makes grunting a quite natural choice. But it takes some getting used to.

Peter Tamaroff

@Kasper So it fucks up your grammar?

Charlie

@Lord_Farin Depending on your mood, it can be irritating

Kasper

9:42 PM

@PeterTamaroff Yes, it does.

Peter Tamaroff

@Kasper And it doesn't get better if you study or something?

Lord_Farin

@Charlie I can give you some recommendations with "easier" vocals if you like?

Charlie

@Lord_Farin I'd love to

Kasper

@PeterTamaroff Oh, it does get better. Especially with this chrome spell checker.

Lord_Farin

@Kasper It must be very difficult for you to deal with dyslexia. Or so I imagine, considering how much of an average person's life consists of reading and writing?

Kasper

9:46 PM

@Lord_Farin One of the reasons I like mathematics :). Vocabulary used in mathematics is less diverse than in this chat.

Lord_Farin

@Kasper Is it rude when I say

@Kasper "than"?

Charlie

guys, really....

Lord_Farin

@Kasper If you don't like it I won't do it again.

Kasper

hahah :P , I can hanlde this, don't worry, you sound a lot nicer "than" this Peter.

Charlie

Somaye did lots of mistakes, no one said anything

because it would be rude

Peter Tamaroff

9:48 PM

@Charlie Life is better with good grammar.

2

Lord_Farin

Btw. I grant anyone permission to ruthlessly zoom in on any grammatical/spelling error on my part (provided you can before I see and fix it).

Charlie

@PeterTamaroff Life is better with good people

Lord_Farin

@PeterTamaroff Yes! I'm not alone :).

Peter Tamaroff

@Charlie That's why. If you help people with their grammar, you make life better. Thus, you're a good person.

Charlie

and then I'm the silly, and stupid and boring person

Peter Tamaroff

9:50 PM

'd u like me 2 speak like dis?

cuz im al good with that if it is what u wnt

Charlie

@PeterTamaroff that's a crime, but tiny typos?

Peter Tamaroff

u ok?

Lord_Farin

@PeterTamaroff tempted by the ignore button.

Peter Tamaroff

@Charlie I'm just teasing.

Charlie

you will tease me so much , I'll get the first bus, plane, to Buenos Aires just to kick your ass

2

Peter Tamaroff

9:51 PM

@Charlie Come at me, sis'.

Charlie

you are very close....

Gustavo Bandeira

@Charlie Sadomaso. Hmn.

Charlie

@argon $\huge \text {Hi Aaron!}$

Argon

@Charlie Hi Marilia

Charlie

@PeterTamaroff I'll

Gustavo Bandeira

9:52 PM

@Charlie She's new. We're just pretending to be cool.

Kasper

Btw, in this euclid game idea, Cam McLeman was talking about this: Well, the third great feature of GeoGebra you can exploit is its ability to embed itself in HTML, and in particular interface with javascript code. Does anybody here has any experience with the combination GeoGebra/Javascript ? Would that be easy to learn ?

Charlie

Hola Pedro, como es...breaks his glass

Raindrop

what is dx called?

Argon

Differential?

Peter Tamaroff

@Raindrop CONTEXT?

Raindrop

9:54 PM

dy/dx = y', what is dx called

Argon

en.wikipedia.org/wiki/Differential_of_a_function ?

Peter Tamaroff

@Raindrop Nothing.

Raindrop

thanks thats all

Peter Tamaroff

$\dfrac{dy}{dx}$ on the other hand...

Raindrop

Wikipedia says "The differential dy is defined by..." - http://en.wikipedia.org/wiki/Differential_of_a_function
so dy is referred to as 'differential'

Gustavo Bandeira

9:56 PM

@Raindrop If you multiply it by 7, it's a keyboard.

Lord_Farin

@Raindrop Read this question.

Gustavo Bandeira

@Raindrop Differential operator, I guess.

Lord_Farin

@Charlie Ok so it turned out to be more of a "things that I like having easy vocals" list, but this, this, this, this and this should be nice for you.

Gustavo Bandeira

Silly Kevin Lin:

Have you any evidence for your claim that "England fell behind Europe for centuries"? — Kevin Lin Mar 21 '11 at 22:05

Charlie

@Lord_Farin :)

Transcript for

$Mathematics$ Mathematics