offensive

@Danu you decide if that should be deleted

I think it's probably a bit offensive, but I personally think that should sometimes be allowed, and this is not my chat room. As long as nobody complains, I think we can leave if up.

Oh.

Welp, someone deleted it.

I deleted it to be safe.

You never know what David Z will do.

lol

@0celo7 Good idea.

I lost my nail clippers! Ain't that a bitch.

Nail clippers are scary man

They are

Just use nail files

The fuck?

Are you serious?

Oh, found them.

What is langrangian?

Google will tell you

@hubot The Legendre transform of the Hamiltonian.

@0celo7 were you always this helpful?

I know only that Hamiltionans are used in quantum mechanics.

@3507 I like to think I've always been helpful.

@0celo7 web.physics.ucsb.edu/~phys231C/231C/Intro_files/…

let's read dis

@FenderLesPaul I think I want to write my thesis on Lorentzian geometry, but I don't know how interesting that is to most mathematicians.

idk

And the Cauchy problem in GR is just absolutely terrifying :P

@Danu I am writing that meta post now

Are web.physics.ucsb.edu/~phys231C/231C/Intro_files/… legal? My computer doesn't load it.

My suppliers control my internet.

NSA is on you now

Even worse

@hubot no idea

works fine for me

it's just from a class website

This publication is slowly loading

Suddenly this publication about Lorentzian Geometry is closed.

*was

It's -30 right now.

:o

@dmckee are you around?

Or @FenderLesPaul

It loads instantly for me.

@BernardMeurer Neither is around.

What if I said "No"?

See ^

@BernardMeurer sup?

That @FenderLesPaul :p

@BernardMeurer I never did an application process that included an interview.

I'd go with the kind of generic advice that applies to almost any interview.

Know the program you're applying for. Now why you want to go there and why they might want to have you as opposed to anyone else.

Don't take your pants off in the process?

Be polite but honest.

@BernardMeurer Yeah that, too.

If there is a meal involved, don't chose pasta or anytihng you eat with your hands.

@BernardMeurer Uhhhh

I see what you mean, the general work-polite etiquette

@dmckee What

@dmckee just a skype video call thankfully

What is collimated bundle of atoms?

@BernardMeurer just give them the impression that you aren't crazy

What's mean that is paralell?

college interviews are basically just for that purpose

@0celo7 You have a bigger chance of making a embarrassing mistake is higher with those kinds of food. You can only lose.

@dmckee Should cotton Dockers be fine to iron, too?

@0celo7 Yes. Though I generally hang mine.

@FenderLesPaul I have a pair of socks filled with Einstein's equations and a picture of him

@dmckee Why not pasta? :P

On a sock

How am I supposed to show them I'm not crazy?

@Danu The sauce.

And long noodles often lead to slurping.

They'll probably just ask you generic stuff like your extra-curricular and academic interests

That's true.

Would you believe there are consultants who make a living on that kind of advice?

so just answer those candidly and smoothly that's all

My MIT interview when I was applying to colleges was basically just that

I've problem that intensity of collimated, paralell bundle of potasium atoms, which was reduced about 3% by layer of argon about thickness 1,0 mm and pressure 6,0 * 10^-4 mmHg.

@BernardMeurer Best of luck!

I have to calculate cross section of collision A per 1 atom of argon.

@hubot Presumably in a modern physics context? If so that just want you to treat them as wave-like.

dmckee: why?

Not as particles?

It is impede case.

Thanks a bunch @FenderLesPaul and @dmckee!

@Danu since the category of "peer review" style questions seems a little wide, I guess I'll try to include some examples in the question

@dmckee I'd bet it's a little more involved than that.

What is the difference in diffulcity in exercises from Feynman tips and from Feynman lectures?

@hubot :2 I typed the above before seeing your comment about cross-sections so that advice is probably wrong.

Instead they're probably trying to establish that you are looking at mono-energetic beam.

But were to go from there really depends on the details of how the problem is posed.

@Danu I asked the question you suggested might be better for meta meta.physics.stackexchange.com/questions/7516/…

@GPhys +1.

@dmckee The guy who's teaching that math methods course is my PDE prof (at least this semester), and he likes me...I'll ask him exactly what "advanced calculus" he thinks one needs for the course.

@dmckee The text is Arfken.

Also Abramowitz and Stegun?? @Slereah

@0celo7 That's a reference rather than a text. Tables assembled by hand during the depression. Tables of integrals. Logarithms. Trig and hyperbolic functions. Special functions (including their recurance relations, orthogonality relations, and so forth).

@dmckee I know.

Use to be the feds would send you a copy gratis just for asking.

My father owns a copy.

THese days I think they just distribute a PDF.

I take that back, my PDE prof isn't teaching it. There's two different math methods classes.

The one my PDE prof is teaching is more, well, PDE based and it's all about perturbation theory, asymptotics.

But both cover Greens functions and integral equations, apparently.

So I'm not sure taking both is a wise idea.

@0celo7 Now that's a course I've never had and might be interested in taking.

I imagine they both require a lot of homework hours.

@dmckee math.utk.edu/~schulze/515.pdf

math.utk.edu/~schulze/516.pdf

I might be interested in taking the first semester of that.

Second -- meh, I'll get some of that in undergrad PDE and more in the grad level PDE.

Did you get on payroll?

@skullpetrol Yes.

Congrats

:-)

@dmckee I'll swing by his office during office hours -- I fear my actual math adviser will not know/care about applied math.

@skullpetrol Thanks.

Hi @yuggib what did you think of that sb?

@dmckee Does 515 seem like it could be useful for engineering?

@skullpetrol Hi

what is sb?

Super Bowl

Sure. But that's not the right question. The right question is "Is it more or less useful than something else you could be doing with those resources?".

math.utk.edu/~schulze/513.pdf

seen it tonight (I was at a conference this week)

That's a lot of recommended reading...

school of hard knocks

ok

@0celo7 One of the texts for that is by my father's advisor.

@dmckee Oh, I won't take these classes if the scheduling works out for topology.

@dmckee My AP Statistics text from high school was written by one of my dad's profs from the 60s.

"experience solving partial differential equations"

Wonderfully vague.

but I like this old school football ;-)

me too

@dmckee I'm trying to come up with backups because scheduling will be tight. There are two classes that, if I don't take them, I won't graduate in 4 years.

The mode is 5 years.

I don't have the money to go 5 years.

Get a second job :P

@skullpetrol There's no reason why I shouldn't graduate in 4.

If I can't take functional analysis, too bad, that's not worth another year in school.

*in undergrad

I can take it in grad school.

Fair enough.

But, if the scheduling doesn't work out, I want to have a backup.

Always.

Exactly.

So I need to talk to my PDE prof about his fluids/perturbation theory classes.

He's too vague about the prerequisites.

They usually are.

@dmckee So how do I make sure that the material in these applied math classes won't be thrown at me again when I take 400-500 nuke classes?

@0celo7 With difficulty. I mean, you could look for on-line syllabi for the nuke classes, but they won't give much detail.

For mortals of merely above average intelligence (like most physics or engineering majors) seeing it a second time is useful, however.

^

Helps to develop a deeper and more automatic understanding.

What is there to "understand" in Arfken?

Conceptually, everything seems straighforward.

@dmckee IIRC, physics students are more intelligent than math students, on average.

@0celo7 So I've heard. But at that level the dispersion of the two populations is larger than the difference in the means.

@dmckee By dispersion you mean S.D.?

Spread out or scattered.

@skullpetrol That's clear.

But that's not a number.

But not everything that can be counted counts.

What?

You objected to "dispersion" being used because it's not a number.

You can't compare [not a number] to [number].

@ChrisWhite true that

Can you contrast them? @0celo7

There^ in lies my point.

@skullpetrol Probably not.

@ChrisWhite randalolson.com/2014/06/25/…

There might be conflicting statistics, I don't know.

Is there a way to force new users to read documentation before their first post?

@DanielSank No.

That's the initiation of force, you statist

Wow engineers are even dumber than biologists

I thought there was an implied > others

Math teachers.

That's by major, not profession.

Your data @0celo7 is only valid in the United States :P