Mathematics - 2013-01-30 (page 3 of 3)

Orange Harvester

20:00

$\mathbb{P}$

Ethan

Q

anorton

$\mathbb{R}$

Charlie

S

Ethan

T

anorton

T

Charlie

20:00

U

anorton

U

V

Charlie

W

Ethan

X

Charlie

Y

anorton

Y

Z!

skullpatrol

20:01

$\Huge\text{STOP!!!}$

3

Ethan

You ruined it wow

Charlie

Yeah we know the alphabet

anorton

$\tiny{\text{why?}}$

pourjour

@Charlie not bad

Charlie

let's go to another

Orange Harvester

20:01

I thought we were spelling out ASCII. :-/

Charlie

@pourjour :D

anorton

@skullpatrol it could have been worse--we could have pinged you on every message.

:D

skullpatrol

:D

Orange Harvester

@anorton he doesn't mind the pinging.

anorton

@skullpatrol $\mathcal{A}$
(kidding... I won't do that)

Charlie

20:03

א

Orange Harvester

@Ethan wassup?

skullpatrol

A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
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pourjour

a/

Ethan

Is the difference of a dirichlet L function and the indefinite integral of the square of that same L function bounded as s approaches 1?

user19161

I think there is a nutcase on the loose, I just got another downvote.

Ethan

20:05

I know it's true for the trivial character, but is it true in general?

Orange Harvester

sorry, no idea

Charlie

@JasonBourne did you see what I wrote for you?

user19161

@Charlie Where?

Charlie

@JasonBourne here

I'm gonna hang myself...like this

user19161

Oh I see. Nah that was just a casual remark. I thought I would chat less to answer even more lhf! =)

pourjour

20:14

for (int i = 97; i < 123; i++)
{
cout << (char)i ;
}

Charlie

@JasonBourne :D

anorton

@pourjour haha

skullpatrol

@JasonBourne $\Huge\text{:D}$

pourjour

@anorton did u realize what is it?

anorton

ASCII readout in C++ Pretty sure it's the uppercase letters.

(I didn't have to look it up)

pourjour

20:19

@anorton na, there are lowercase

anorton

@pourjour ah. :\ At least I knew they were letters... I need to go and review the table sometime.

pourjour

@anorton yeah that's the point

Charlie

@orange listen

Orange Harvester

@Charlie Its beautiful.

Can I has more?

Charlie

@OrangeHarvester di you see? it's a playlist with 12 of them, Brian Crain.

Orange Harvester

20:25

@Charlie Yes. I saw! I want even more!

skullpatrol

@Charlie I gotta run see ya later...

Charlie

@skullpatrol bye!

@OrangeHarvester try it

Orange Harvester

really cool. Thanks!

A more composer in my list.

Charlie

@OrangeHarvester Anytime

Orange Harvester

@Charlie good night

see you

Charlie

20:32

@OrangeHarvester Night!

Gustavo Bandeira

@Charlie Viajou?

Charlie

@GustavoBandeira cuma?

Gustavo Bandeira

Cê sumiu.

Charlie

é...

mas num viajei, não

@GustavoBandeira e tu? como estás?

Gustavo Bandeira

Eu tô bão. =)

Achei dois livros hoje que parece bacanas, do Klein.

Charlie

20:37

@GustavoBandeira bacana

Gustavo Bandeira

E aí? Tá fazendo o que?

Charlie

alguns exercícios, tô estudando

user19161

Hey guys I have 15k now, it's time to retire! =)))

Charlie

@JasonBourne NO!

@JasonBourne Jasbear

Jonas Teuwen

$$\Huge\text{STOP! HAMMER TIME!}$$

Charlie

20:52

hahahahaha

@JonasTeuwen How are you Mr. Teuwen?

Jonas Teuwen

Pain pain pain! But OK!

Charlie

@JonasTeuwen oooooowww

@JonasTeuwen you can't do anything?

Jonas Teuwen

In what sense?

Charlie

@JonasTeuwen to stop the pain or make it less painful

Jonas Teuwen

I do not care so much about the pain.

Just a bit hard to walk or sit.

Charlie

20:57

Oh, Jonas...

@JonasTeuwen do you allow me to ask what exactly happened to you?

Jonas Teuwen

I don't know.

Charlie

ok

user19161

Jonas was too excited to see me, so he hurt his back! =)

Charlie

Jasper! :D

user19161

Jonas and I are getting married soon. All of you are invited to our wedding. =)

Charlie

21:07

@JasonBourne Oh my!

who's the bride?

Gustavo Bandeira

@Charlie Who's the passive?

user19161

@Charlie Jason is getting married to Bourne and Jonas to Teuwen.

Charlie

@GustavoBandeira :P

@JasonBourne uhuh

Gustavo Bandeira

bloomberg.com/billionaires/2013-01-29/aaa

I could marry Slim.

Charlie

eita

@greg Hi

Greg Ros

21:12

Isn't the indefinite integral of the fractional part function $\{x\}$ ($[x]$ is the integer part function): $$\frac{1}{2}\left([x]+\{x\}^2\right)$$

Hi

anorton

+C :)

Greg Ros

:P

It seems kind'a obvious but wolframalpha is telling me no result found.

Charlie

@Argon Bunny!

Argon

@Charlie Charlie!

Charlie

@Argon how was the library?

Argon

21:17

@Charlie Goood

Charlie

@Argon awesome!

Argon

@Charlie YAY!

Charlie

@Argon YAY!

@adar Welcome!

Argon

Hello @AdarHefer

Hmm... It almost is Adar...

user19161

So guys, I accidentally downvoted two posts I should not have. Now I have edited them and upvoted them instead. But I ran out of votes today at first, so I edited another two posts, removed the upvotes on them and then used them to upvote the other two.

Argon

21:22

:) You have crazy tactics!

user19161

Well, as long as there is no malice.

user19161

@Argon It's Thu here now...

Argon

@JasonBourne So close...!

user19161

Hey guys I have capped today, save your votes for tmr...

David Wheeler

@JasonBourne i promise not to upvote you. EVRRRRRR (mean face)

user19161

21:32

@DavidWheeler You should at least aim for 20k, that means trusted user.

David Wheeler

i should not be trusted. i'm subversive.

2

Argon

:)

Charlie

I wouldn't be a trusted user even if I had 100k

3

Greg Ros

Aha. I finally figured out why Bernoulli polynomials appear in the Euler-MacLaurin summation formula

user19161

Because Bernoulli is the god brother of EUler and McLaurin.

Greg Ros

21:40

Well, not exactly.

user19161

Hey @anorton!

anorton

@JasonBourne Hey! :)

David Wheeler

why do they appear? were they promised promotional monies?

anorton

@DavidWheeler Who is "they"?

Charlie

@UzzoloDivendetta nice gravatar

David Wheeler

21:50

the bernoulli polynomials

Adar Hefer

22:11

@Charlie Thanks!

Just hopped on here for no particular reason. Just loving the stackexchange and noticed the chat button.

Charlie

@AdarHefer שלום

@AdarHefer I live here for no particular reason

Adar Hefer

@Charlie אהלן. :)

Charlie

:D

Adar Hefer

So here I am, should be studying for an upcoming probability test

But watching random stuff on YouTube with a cup of tea in my hand and thunder outside.

My life is awesome.

Charlie

@AdarHefer oh, probability, relax :D

@AdarHefer it seems

Adar Hefer

22:15

@Charlie I'm not too worried heh. It's been a pretty smooth ride this semester.

anorton

@AdarHefer What's the probability of you making a good grade on that test if you're not studying? :P

Charlie

@AdarHefer good

Adar Hefer

Tell me something mystery-man. I always lack creativity in these situations and end up with nothing to say.

Charlie

@AdarHefer mystery man haha

Adar Hefer

Or else I'll just post links to things that make me laugh, because that's what I do when I'm uncomfortable.

i.e
http://youtu.be/FWtO0cfgewY

Charlie

22:22

hahaha

excuse, bbl

Link

23:04

hey

anyone on?

@Charlie, you there? I have a quick physics question, midterm tomorrow, last topic.

user19161

@Link Good luck Max! I have forgotten 99 per cent of my physics...

user19161

Anyway what topic is it?

Link

Uh, torque?

It's more of a trig question :p

can't figure out why I need a tan instead of a sin

user19161

A tan is good cos it's not a sin.

4

Link

awesome pun

nicely done

user19161

23:10

Oh well, I said it before, but still it deserves to be said again and starred again!

Link

one sec

there

starred!

hey

can you see the diagram?

draw.io/…

user19161

Yes, I can see.

Link

okay, mass is 10KG

bridge is wightlass

mass hangs in middle

so, anyhow

the Torque1=Torque2, (opposite directions)

and Torque1 is 100*.5

so 50N

50N=Torque2

and Torque2 is Tension*(trig function)

but I don't know why the trig function is tan

ablmf

Is there a notation which means "the smallest integer that is strictly greater than x"?

Link

there is no such thing

so I assume no?

user19161

23:17

Not that I know of, just use floor plus one.

Link

or maybe integer<x?

>.>

ablmf

@JasonBourne That works, thanks

user19161

@ablmf It isn't that much to type, but if you use it like 9000 times in your own book you can always introduce your own notation for it.

ablmf

@JasonBourne :) Yeah, of course.

Link

so, why is it tan in my problem?

anorton

23:29

Yo! :)

@Link I don't see the drawing when I go to the link

oh wait... it still says "connecting" at the top

@Link ok. it still hasn't loaded. I may be able to help, though--is there another way you can upload the diagram?

Link

yea, here

anorton

errr.... The network I'm on blocks a ton of image hosting sites.

Link

DAMN

anorton

:(

Sorry. Try the upload button on the chat window. I don't think those are blocked (not 100% sure)

Link

did that work?

anorton

23:44

nope... :(

Link

mediafire.com/view/?a2nvqfi1rb2al73

there

try that

anorton

good grief... this isn't working. Do you have a google acct? Maybe a google drive document would work.

Link

sure

docs.google.com/file/d/0B9uJ-WmpI8m1SzkySk42UXFhQTg/edit

now try

updated privacy

anorton

Ah ha! It works! :)

Now let me try to work the problem...

Link

Yay

anorton

23:56

ack...

Family is calling me down for supper (and I have to go).

I'll be back later to try and work it. :(

Link

argh, okay

enjoy dinner

Transcript for

$Mathematics$ Mathematics