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Kyle Kanos
Kyle Kanos
1:26 AM
@JamalS Having an advanced degree does not immunize you from acting like an idiot.
 
 
2 hours later…
Kyle Kanos
Kyle Kanos
3:27 AM
-4
Q: Need immediate help with attached questions (due 12/10 midnight)

KaseyJenkinsI need immediate help (until 12/10 midnight) with my final questions. I am really struggling and any help will be really appreciated. Questions are in this link: http://imgur.com/a/A5sgN#0 Please let me know, if you request to be paid in return. Looking forward to hearing from you guys. Kasey

newtonian-mechanics
Nice that he/she is offering to pay us...
 
 
3 hours later…
Physics Meta
Physics Meta
6:31 AM
0
Q: Of which thing in physics is the logo (graph) of physics.stacexchange.com

yawarSince I visited physics.stackexchange, I am really curious what function has such a graph or is it just random. I am referring to the graph logo of this stackexchange community

discussion soft-question
 
user54412
6:57 AM
@KyleKanos In answer to your question, I'm guessing U. of Arizona -- its A ME 250 course description matches the questions pretty well
 
user54412
then again, it's "usually offered" only in spring, so maybe not?
 
David Z
David Z
7:17 AM
14
Q: Low quality of election nominees

user45195I recently noticed that elections for 3 moderator positions were going to be held. I looked through the list of candidates so far, and actually found people with, like 500 reputation, among the candidates. Also, I found that all votes were given equal value. So, I am posing 2 direct suggestions r...

discussion feature-request moderators election
This is happening on Mathematics
In light of this I wonder if we have any latitude to tweak the requirements for people to nominate themselves for a moderator election on this site. (Not that we have any specific plans for one, but presumably it'll happen sooner or later, and any requirements should be set well in advance)
 
user54412
Well, perhaps a first step is running those queries on our user base to see where things stand
 
David Z
David Z
Good idea
 
user54412
Though it seems weird to worry about electing a poor moderator -- that requires poor nominees and misguided voting, so you really have to not trust the community
 
David Z
David Z
I don't think we'd have the same problem with frivolous nominations that they do on Math anyway, so it probably doesn't matter
@ChrisWhite be a moderator for long enough and you won't trust the community either :-P (just kidding)
 
user54412
Just to be clear, are there any barriers to nomination, here or on math?
 
David Z
David Z
7:24 AM
I think you need 300 rep and a certain amount of time having been a member on the site - two weeks or something?
There are some barriers but they're currently quite low for us. I don't remember the details.
58
Q: There's an election going on. What's happening and how does it work?

ben is uǝq backwardsThe community bulletin says that there is a moderator election occurring. How does the election work and how can I get involved? Return to FAQ index

support faq election election-page
 
user54412
I guess that is a bit low, considering I seem to be able to nominate myself on math for 1 question and 3 answers
 
David Z
David Z
Yeah, which is why you get all the random nominations on Math from people who don't seem like they'd be particularly good moderators
 
user54412
Given that math moderators seem to always be under attack, and they all burn out or rage quite eventually, I don't know why anyone wants that job
 
David Z
David Z
I think a lot of people who aren't moderators don't really know exactly what it takes to be a good moderator. Even if we don't/can't change the requirements, a meta post along the lines of "anyone who does not meet X/Y/Z criteria, I would not consider a serious candidate" might be useful, to help inform the voting.
And it should be done well in advance so it doesn't look like we're trying to skew the vote toward one particular person.
@ChrisWhite hehe, true. Good thing our site isn't like that.
Sometimes I browse Math meta to make myself feel better :-P
 
user54412
News flash from the hot questions list: @ is the matrix multiplication operator in python 3.5!? What... just... why?
 
David Z
David Z
7:33 AM
I was reading that PEP just an hour ago. I actually like the idea. It's not necessary but it's going to make numerical coding in Python way more convenient.
@ is a questionable choice of symbol but it really was the most practical option available.
 
user54412
Back to mod elections: while I'm not necessarily against having reasonable (soft or hard) limits on who can run, the egalitarian anti-oligarchic American in me worries very much about giving more votes to those with more rep.
 
ManishEarth
ManishEarth
@DavidZ Meh. New people no get votes.
 
user54412
What about a fee of around 100 rep? This would put off low rep users and filter in the more serious ones. — Alizter 14 hours ago
 
user54412
^^ Poll taxes
 
David Z
David Z
@ChrisWhite Oh, yeah, I'm with you there. Beyond a cutoff to ensure that anyone who votes has some experience with the site, that seems like a pretty counterproductive idea.
 
user54412
7:43 AM
It's like a microcosm of everything wrong with democracy over there -- incompetent candidates, mob rule vs. enfranchised elites
 
David Z
David Z
haha
someone should do a political study on Math SE elections
2
 
JamalS
JamalS
@DavidZ: What would be your criteria for a good moderator?
 
David Z
David Z
For a good moderator, hm... someone who is diplomatic, who has been at least somewhat active on the site long enough to be familiar with it (I want to say 6-8 months or so), who has demonstrated a good understanding of our scope, ideally who basically knows how close votes, edits, and review queues work
and someone who actively participates in meta and chat
 
ManishEarth
ManishEarth
Who wants to join the Manishearth SuperPAC?
 
user54412
me me me!
 
user54412
7:48 AM
you do have cookies, right?
 
David Z
David Z
Depends, am I paying or getting paid? :-P
Cookies are indeed acceptable currency
 
JamalS
JamalS
Do you offer chocolate instead?
 
David Z
David Z
Actually cookies would be fantastic currency. It's hard to find a decent chocolate chip cookie in China.
 
ManishEarth
ManishEarth
Had the most amazing sugar cookies at Portland last week
And it was part of a conference.
You could scarf down as many as you wanted :D
 
JamalS
JamalS
@DavidZ You could always make them yourself :)
 
David Z
David Z
7:50 AM
@JamalS other things that are hard to find in China: chocolate chips, milk, and flour
 
user54412
@DavidZ well duh. Ever tried eating a chocolate chip cookie with chopsticks? :P
 
David Z
David Z
@ChrisWhite I tried eating other kinds of cookies with chopsticks. It's not that hard actually.
Come to think of it, I should just eat plain chocolate chips with chopsticks.
 
user54412
@DavidZ that idea is so amazing, I'm going to do that right now
 
JamalS
JamalS
It's early morning, but now I want to eat my chocolate truffles, with chopsticks!
 
user54412
@DavidZ so why are you in China anyway?
 
David Z
David Z
7:54 AM
@ChrisWhite I have a postdoc here
 
user54412
Oh cool! I missed the memo about you becoming a postdoc it seems.
 
David Z
David Z
Well there wasn't really one, unless you follow me on Twitter (or unless you read my blog)
 
JamalS
JamalS
@DavidZ What's your twitter?
 
user54412
That would require visiting other places on the internet, which I've never been brave enough to do.
 
David Z
David Z
@JamalS @ellipsix (it's on my SE profile)
 
JamalS
JamalS
7:57 AM
@DavidZ: I like what it says on the back of your shirt :)
 
David Z
David Z
Oh, yeah, I think that was the one from my undergrad classical mechanics class
 
 
5 hours later…
Danu
Danu
12:44 PM
Does anyone have any idea how the Poincare patches (in dS and AdS spacetimes) got their name?
 
ACuriousMind
ACuriousMind
12:54 PM
@Danu I'm not sure at all, but could it be because the AdS (which is a hyperbolic space) in quite the same way as the Poincare disk models 2D hyperbolic space?
because *they model
I really need to proofread the stuff I write...
 
David Z
David Z
@Danu wouldn't that be a good HSM question?
@ChrisWhite you know Twitter is big among early-career researchers, especially in astronomy
 
Danu
Danu
@DavidZ I know, I was thinking about this
@ACuriousMind ...but what about dS (I encountered it there for my bachelor's thesis)
 
ACuriousMind
ACuriousMind
I can't even find out how the Poincare patch in dS looks (I hadn't heard the term before), so I got nothing for that.
Go ask that SE of yours! ;)
 
Danu
Danu
1:23 PM
 
 
1 hour later…
Kyle Kanos
Kyle Kanos
2:25 PM
@ChrisWhite That's what I thought too, given my Google Fu (both the UA & Spring only offering). ND has an AME 250 course as well. I'm not too worried about it, I guess
 
 
3 hours later…
DumpsterDoofus
DumpsterDoofus
5:26 PM
Hey, if anyone wants a fairly easy 50 bounty plus upvote plus accept on MathSE, I have a question about co/contravariance of equations at math.stackexchange.com/questions/1053789/…. I'm bad at understanding how curvilinear coordinates work, so it should probably be fairly easy for anyone who is good at general relativity.
 
Sofia
Sofia
@DanielSank it's the first time that I am in this "chat-room" as you call it. Daniel, don't you have an e-mail? My question about spontaneous emission is a hard question. The topic is not trivial. I tried to explain in brief, and got a message of "too long".
 
ACuriousMind
ACuriousMind
@Sofia You can split up what you wanted to write into multiple messages, there's nothing speaking against that. (If you want to discuss a particular question in detail, it might be better to start a new room for that, though)
 
Sofia
Sofia
@ACuriousMind I don't have the right to open a room. Does Daniel have a room?
 
ACuriousMind
ACuriousMind
@Sofia Probably not, but I think he should be able to start one (he's not currently in this room, though)
 
Sofia
Sofia
@ACuriousMind: Aaa! Then, I am practically sending a letter to the wind. But, tell me, how do you use this "room"? Everyone that gets into the room reads the questions posted to him?
 
Kyle Kanos
Kyle Kanos
5:42 PM
yep, it's just like good old AOL chatrooms
 
ACuriousMind
ACuriousMind
@Sofia It's...just a chat room, really. You can come here to ask the people present (physics) questions, but you can also talk about whatever else is on your mind. Basically, as the name h bar suggests, it's just a place for physics.SE people to hang around ;)
 
Sofia
Sofia
@ACuriousMind: I see.
 
Kyle Kanos
Kyle Kanos
Fast link-only-spam-bot:
Signing it with a website address too
 
user54412
6:16 PM
And I thought Americans were supposed to be the impolite tourists. I now have the sudden urge to punch someone to demonstrate the true meaning of "openly hostile."
 
Kyle Kanos
Kyle Kanos
@ChrisWhite Haha, OP rolled back the edit because it "lost the meaning" of his words
 
user54412
As long as we have the NSA, it may as well do something useful and track that person to make sure he never enters the country.
 
user54412
In other frustrated news, I'm editing tex documents written by a bunch of people in my department, and the things they do would make Knuth cry
 
Kyle Kanos
Kyle Kanos
Like what?
 
user54412
like they for some reason turned off all paragraphs and they manually insert blank lines and indentations each time they're needed
 
Kyle Kanos
Kyle Kanos
6:30 PM
Don't they know how to program in Latex?
 
user54412
I... don't think so
 
user54412
they also only use tex primitives
 
Jim
Jim
That's like when people hit enter multiple times in Word instead of using page break. Or when they manually make a table of contents. It's infuriating
 
user54412
this source code should be turned into a PSA: "Kids, this is your brain on IDL/IRAF"
 
Qmechanic
Qmechanic
7:36 PM
0
Q: How are dimensions indicated in physics equations?

x457812The universe is often described as being 4-dimensional (having 3 spatial dimensions + the dimension of time). Some theories (such as some string theories) consider the universe as having even more dimensions. In some cases, some of the dimensions are viewed as "curled up". For example: accordin...

dimensions notation
Should this question be on-hold? E.g. the accepted answer does not seem to answer the question in the question formulation. Or alternatively: it is unclear what OP is really asking.
 
user54412
@Qmechanic I think you're taking the OP's words too literally. When they say "dimension" they often mean "coordinate" -- they aren't looking for dimension counting, but rather notation for specifying which coordinate is being used.
 
user54412
They've probably only seen basic vectors, and they're wondering if v^1, v^2, v^3, ... extends to v^{10} or if something else happens (I dunno, maybe v^1_a, v^3_b?)
 
Kyle Kanos
Kyle Kanos
Oh dear that latter notation would be so terribly confusing
 
DanielSank
DanielSank
@Sofia: In case you come back here, I am more than happy to discuss your question at length either here or via email. My email is available on my user profile.
 
Phonon
Phonon
7:54 PM
@ACuriousMind there we go with wavefunctions and collapsing again... :))
 
Kyle Kanos
Kyle Kanos
Interesting....
0
Q: How to reinstall leather laces on Sperry's boat shoes?

jiniytEvery question that involves friction and force is a physics question. Bear with me. Sperry's are boat shoes with leather laces running through several eyes along the sides of the shoes. I removed these and replaced them with cotton laces, but installing them took quite a bit of effort. The insta...

forces everyday-life friction
 
user54412
haha -- recently it was pointed out to me that everyone in Princeton wears those shoes (while dressed like they're about to go yachting)
 
Kyle Kanos
Kyle Kanos
Yeah, it's a style down here in Clemson as well
 
Danu
Danu
9:01 PM
Does anyone have a really solid explanation of why we should exclude disconnected diagrams in QFT?
I mean something better than 'vacuum to vacuum stuff shouldn't contribute' which is what I've been hearing till now
 
ACuriousMind
ACuriousMind
@Danu We don't exclude them, but, when calculating n-point functions, they are automatically divided out since the partition function is precisely the contribution of disconnected diagrams!
(And the need to divide by the partition function is there both in the path integral and in the LSZ operator formalism)
 
Danu
Danu
9:31 PM
This post that popped up on facebook made me laugh pretty hard: "After truly believing that I want to become a gynaecologist for almost two years, I give up this inspiring idea after following this course for 3 weeks... Too much, just too much..."
@ACuriousMind So why exactly are we dividing them out
(I know we do, that's what I meant by 'exclude')
Also, does anyone have something for drawing Feynman diagrams that's better than Jaxodraw? In particular, I'd like to label my lines
 
ACuriousMind
ACuriousMind
@Danu In the path integral formalism, because that's what you do when you take the expectation values w.r.t. non-normalised partition functions. In the LSZ operator formalism, I don't see any particular "reason" except for "It's what comes out if you go through the LSZ derivation of Feynman rules/n-point functions"
 
Kyle Kanos
Kyle Kanos
Well, outside of the fact that $dt$ is running down to $10^{-9}$, my cute 2D MHD code is working smoothly
 
Danu
Danu
@KyleKanos Sounds legit
@ACuriousMind "because that's what you do"?
 
Kyle Kanos
Kyle Kanos
@Danu It is pretty legit
 
Danu
Danu
Let's say I start naively with $Z[j]$ for a scalar field
why should I think that my vacuum bubble diagrams are unphysical?
 
ACuriousMind
ACuriousMind
9:40 PM
@Danu Purely statistical: Given a "probability" distribution $f$ with partition function $\int f$, the expectation value of any $g$ is $\frac{\int fg}{\int f}$
 
Danu
Danu
and then decide to take $iW[j]=\log Z[j]$ as the 'real deal'
@ACuriousMind I get that, but I don't think that's what this is
In particular, you can already normalize $Z[j]$ with no problems
 
Kyle Kanos
Kyle Kanos
Can I interject a dumb question:
What're you talking about?
:D
 
Danu
Danu
@KyleKanos Path integral
 
Kyle Kanos
Kyle Kanos
Okay
At least there's a reference that I can get to
 
Danu
Danu
:D
 
Kyle Kanos
Kyle Kanos
9:42 PM
Also, there's always FeynMP
 
Danu
Danu
yeah, but I hate that type of input, it's real cumbersome for someone like me who has like 0 computer skillz
 
Kyle Kanos
Kyle Kanos
So LEARN
You are a student, no?
I really wish Twitch emotes worked here
Because I totally would have entered Kappa right after LEARN above
 
Danu
Danu
@KyleKanos Keepo
@KyleKanos It's not that I can't learn it, it's that I know that Jaxodraw is better anyways lol
 
Kyle Kanos
Kyle Kanos
That's a better reason
 
Danu
Danu
...but I want to have something even better
 
DanielSank
DanielSank
9:46 PM
Anyone around here know much about stochastic processes?
 
Kyle Kanos
Kyle Kanos
I picked that up
@DanielSank I know some
 
ACuriousMind
ACuriousMind
@Danu Yes. And in normalizing $Z[j]$, you also divide by $Z[0]$, which is again the partition function, i.e. the contribution of disconnected diagrams
 
Danu
Danu
@ACuriousMind No
 
Kyle Kanos
Kyle Kanos
 
Danu
Danu
Ah, I see what you're saying though
@ACuriousMind I think we're slightly talking past each other
but I think I now understand what you're saying
@KyleKanos I can't program :\
..."familiarity with C is assumed" :(
 
DanielSank
DanielSank
9:52 PM
Alright, I have a question I've posted on a few SE sites but never got any info. Here we go:
Suppose I tell you that I have a process with a particular spectral density and unconditional distribution. Now suppose I tell you that at time $t=0$ the process has value $V_0$. What is the conditional distribution of the process at $t=T$?
 
Kyle Kanos
Kyle Kanos
@Danu Again: LEARN (Kappa)
@DanielSank Sounds like a martingale
wait
 
DanielSank
DanielSank
@KyleKanos: waiting...
:;
;)
 
Kyle Kanos
Kyle Kanos
You want $\mathbb{P}\left(X(T)=x|X(0)=V_0\right)$
 
DanielSank
DanielSank
yep
 
Kyle Kanos
Kyle Kanos
For process $X(t)$
(sorry for delay, I was distracted by a pair of comments on the main)
 
DanielSank
DanielSank
10:00 PM
@KyleKanos: I'm just teasing.
 
Kyle Kanos
Kyle Kanos
I know that (there's some winks)
Is $X(t)$ discrete or continuous?
 
DanielSank
DanielSank
continuous.
 
Kyle Kanos
Kyle Kanos
 
DanielSank
DanielSank
I believe there is a theorem called "Doob's theorem" which gives the answer to this question, but I haven't found an actual explanation of what the theorem says!
@KyleKanos: There's this mathworld.wolfram.com/DoobsTheorem.html, but some of the variables aren't defined
 
Kyle Kanos
Kyle Kanos
Well for continuous cases, we normally use$\mathbb{P}(X=x|Y=y)=\mathbb{P}(X=x,Y=y)/\int\mathbb{P}(X=x,Y=y)dx$.
 
Danu
Danu
10:12 PM
Thanks Kyle!
Also, my damn latex is not working
It's giving me mad trouble with pictures all of a sudden
I had always simply been using things like
\includegraphics[width=0.4\textwidth]{Danu.pdf}
but all of a sudden that doesn't work anymore (?!)
 
DanielSank
DanielSank
@Danu: That should work.
What's the error.
 
Danu
Danu
Cannot determine size of graphic in Danu.pdf (no BoundingBox). ...udegraphics[width=0.4\textwidth]{Danu.pdf}
looking it up online gives really strange stuff
that shouldn't be happening here
I havent messed with my compiler or anything
 
DanielSank
DanielSank
Are you using pdflatex?
 
Danu
Danu
...I think so?
 
DanielSank
DanielSank
(Also, btw, there is a TeX SE site!)
 
Danu
Danu
10:14 PM
I know
am I doing something wrong?
 
Kyle Kanos
Kyle Kanos
Yes: you're a scientist using Windows
:D
 
DanielSank
DanielSank
@KyleKanos: That is not so helpful :\
 
Kyle Kanos
Kyle Kanos
I know
But he knows I'm pulling his leg
 
ACuriousMind
ACuriousMind
@Danu: Have you opened the .pdf in another viewer while trying to compile?
 
DanielSank
DanielSank
Actually I've found that the windows packages work better than the Linux ones.
 
Danu
Danu
10:16 PM
Screw elitist nerds :D
@ACuriousMind no
I really don't like Linux - just because of all those angry nerd types that advocate it :)
 
Kyle Kanos
Kyle Kanos
Go all the way: go Unix
 
ACuriousMind
ACuriousMind
Unfortunately, I use MikTeX, not TeXStudio, so I cannot say if any of your settings are off.
 
Kyle Kanos
Kyle Kanos
Since I haven't actually used a Windows machine for not-Word purposes in about 6 years, I'm useless on this one
 
DanielSank
DanielSank
@Danu: I've used both OS's extensively and I prefer Linux for desktop work. For experiments in the lab Windows is often necessary. They serve their purposes. This is not the place for that argument :)
Anyway, this probably has nothing to do with the OS.
@Danu: How did you generate the pdfs?
 
Danu
Danu
@DanielSank What do you mean
@ACuriousMind Are you using the standard editor that comes with it? If that's the case, you should really try a different one, the standard one is pretty bad in comparison; it's a nice upgrade
 
DanielSank
DanielSank
10:19 PM
@Danu: Where did the pdf you're trying to use come from? How did you make it? Inkscape?
 
Danu
Danu
No, it's just a picture
the same problem happens with any picture now
there's somethins seriously wrong with TeXStudio, not the picture
 
DanielSank
DanielSank
@Danu: Make a new tex document which does nothing besides render the image. Does that work?
 
ACuriousMind
ACuriousMind
@Danu Hm. I think so. TeXworks is the standard front end, isn't it?
 
DanielSank
DanielSank
@ACuriousMind: There is no standard.
 
Danu
Danu
no
 
DanielSank
DanielSank
10:21 PM
@Danu: Did you make a new file which only makes the picture?
 
Phonon
Phonon
@Danu probably easiest just to re-install your distribution to have the default setting again
 
Danu
Danu
@ACuriousMind It is the standard front end (comes with MikTeX when you install it). Really, give Studio a try
@DanielSank yes, and it doesn't work
 
DanielSank
DanielSank
@Phonon: Ack! No! Don't do that.
 
Danu
Danu
@Phonon I dont think it's the distribution, but the editor
My distribution has always been working fine (I use it daily)
haven't done pictures for quite some time though
 
ACuriousMind
ACuriousMind
Yes. Yes, I think instead of further smashing my head against the wall that is this week's excercise sheet, I will test different TeX frontends :D
 
DanielSank
DanielSank
10:23 PM
@Danu: You made a new file which only includes the picture, right? There are no packages imported besides graphicx or whatever it's called?
 
Phonon
Phonon
@Danu ah ok, then nvm. I ve always used texmaker as editor, never had any issues.
 
Danu
Danu
and may have changed some settings when I started using biblatex
 
DanielSank
DanielSank
(+1 for TeXMaker)
 
Danu
Danu
so... any suggestions?
 
DanielSank
DanielSank
@Danu: I'm waiting for confirmation that you tried building a file with no biboiography and absolutely no package imports except for the graphics one.
 
Danu
Danu
10:25 PM
I already told you, I did
:)
 
DanielSank
DanielSank
Just checking. People lie about that all the time.
 
Phonon
Phonon
@Danu no clue :( have you tried the tex.SE chatroom?
 
DanielSank
DanielSank
@Danu: Ok, now try doing it via command line. No IDE.
 
Danu
Danu
@DanielSank I don't know how to do that (computer n00b here)
 
DanielSank
DanielSank
@Danu: Probably type pdflatex.exe my_tex_file.tex
@omg you're on Windows 8?
 
Danu
Danu
10:28 PM
I'm on windows 8 yes
 
DanielSank
DanielSank
Do you know how to get a command line shell?
 
Danu
Danu
I know what cmd.exe is, that's about as far as it goes
 
DanielSank
DanielSank
ok
run that
then type pdflatex.exe or pdflatex
Does that do anything/
 
Danu
Danu
yeah
seems fine
"this is pdflatex blahblah"
I really think it's my editor
 
DanielSank
DanielSank
That's what we're checking.
@Danu: Go to the directory with your super duper simple .tex file which only imports the image and pdflatex it.
 
Danu
Danu
10:31 PM
@DanielSank you mean in cmd.exe?
how do I copy paste in cmd again? I forgot
oh yeah with my mouse
what would the command be?
path/etc/file.tex and then what?
 
DanielSank
DanielSank
@Danu: First,
cd path\to\my\files
then
pdflatex my_tex_file.tex
 
Sofia
Sofia
@DanielSank: I was looking for you. Can we continue our dialog on spontaneous emission?
 
DanielSank
DanielSank
@Sofia: Of course. I guess your rage toward me has subsided :)
@Sofia: It seems the thing that puzzles you is that the vaccum can cause anything to happen at all, yes?
 
Sofia
Sofia
@DanielSank: I forgot. Who has time for such things! My rage is an the weather after rain. There follows a brilliant sun, ans splendid weather.
 
Danu
Danu
@DanielSank gives me not much interesting
 
DanielSank
DanielSank
10:36 PM
@Danu: Great! Did it produce a pdf?
 
Danu
Danu
No
 
DanielSank
DanielSank
@Danu: :(
 
Sean Allred
Sean Allred
@Danu What exactly does it say?
 
DanielSank
DanielSank
@Danu: Um... what was printed to the console?
 
Sean Allred
Sean Allred
A screenshot is fine since cmd.exe can't do the copypasta very easily
 
Sofia
Sofia
10:38 PM
@DanielSank: please see, it is a very serious issue. I would be glad, if we can have a profound talk on it.
 
DanielSank
DanielSank
@Sofia: I'm trying.
I want to understand exactly what's confusing you!
 
Danu
Danu
it just returns this
 
DanielSank
DanielSank
@Sofia: I think the best way to start this is to begin with something simpler than the continuous vacuum. May we instead start with a two level system coupled to a harmonic oscillator.
@Danu: That... doesn't make sense. That's all it printed?
 
Danu
Danu
@DanielSank yup
 
DanielSank
DanielSank
@Sofia: Are you comfortable with the idea that the vacuum is actually a continuous set of harmonic oscillators?
 
Sean Allred
Sean Allred
10:42 PM
@Danu that's it?
Not even a version banner?
(a banner being the first line printed)
 
Sofia
Sofia
@DanielSank: no, Daniel, no! I'll tell you the issue. By the way, whatever you explained me in your comments, is known to me. In fact, I have some after-thoughts whether it is not a too heavy problem for this frame. But, I will tell you and you'll see.
 
DanielSank
DanielSank
@Sofia: "No" to which part?
 
Danu
Danu
second try gives this
 
Sean Allred
Sean Allred
(Y'all physics people be cray.)
 
DanielSank
DanielSank
@Danu: There's an error in the source file! It tells you so right there.
 
Sean Allred
Sean Allred
10:44 PM
Ooook :)
 
Sofia
Sofia
@DanielSank: no, to the need of beginning from a two-level system.
 
DanielSank
DanielSank
o
 
Sean Allred
Sean Allred
@Danu Type this: vvv
 
DanielSank
DanielSank
@Danu: Are there spaces in your file name?
 
Sean Allred
Sean Allred
pdflatex.exe "C:\Users\Danu\Dropbox\Academics\Curriculum Vitae.tex"
 
DanielSank
DanielSank
10:45 PM
@SeanAllred: yep.
 
Sean Allred
Sean Allred
Spaces in a file name makes everything more complicated. Use hyphens or underscores
 
DanielSank
DanielSank
@Danu: Don't EVER put spaces in a file name for the rest of your life for any reason. Don't do it for money. Don't do it for glory. Don't do it for God and/or country.
5
 
Danu
Danu
That's the path, not the file
 
DanielSank
DanielSank
@Danu: Do what SeanAllred says, please.
 
Sean Allred
Sean Allred
@Danu It's part of the file name, for this purpose
 
Sofia
Sofia
10:46 PM
@DanielSank: let me spare you guesses. Can we have some talk on Saturday? Now, it's past midnight in my country. What is the time now, there where you are? What is the difference between our clocks?
 
DanielSank
DanielSank
It's 14:45 here.
 
Danu
Danu
@SeanAllred undefined control sequence
 
Sean Allred
Sean Allred
Use forward slashes then. TeX will know what you mean.
 
DanielSank
DanielSank
@Danu: pdflatex.exe "C:/Users/Danu/Dropbox/Academics/Curriculum Vitae.tex"
 
Sean Allred
Sean Allred
(Although it shouldn't be a problem... unless....... are you running pdflatex and then, when it's running, typing in the file name? Because that won't work. (You can \input the filename, which would be appropriate, but that's a complication.))
 
Danu
Danu
10:48 PM
no new results :P
 
DanielSank
DanielSank
@Danu: But actually, what you should do is rename the file curriculum_vitae.tex
 
Danu
Danu
not undefined, but ? again
the file is NOT CV.tex
 
Kyle Kanos
Kyle Kanos
Or CV.tex
 
Danu
Danu
the file is test.tex guys
 
DanielSank
DanielSank
@Danu: Let's stop this foolishness. Rename the file to something without spaces.
 
Danu
Danu
10:48 PM
I already said that
 
Sean Allred
Sean Allred
Sorry -- I'm relatively new to the convo :)
 
DanielSank
DanielSank
@Danu: That's not what your screenshot says.
 
Sofia
Sofia
@Aha! Very well! Then, I intend to look for you on Saturday. Tomorrow and after tomorrow re too busy days for me. O.K. ?
 
Sean Allred
Sean Allred
@DanielSank I believe it is, though
 
Danu
Danu
@DanielSank look again
 
DanielSank
DanielSank
10:49 PM
@Sofia: I can't guarantee I'll be hanging around waiting for you all day on Saturday.
 
Sean Allred
Sean Allred
pdflatex "C:/Users/Danu/Academics/Curriculus Vitae/test.tex"
 
Danu
Danu
the file is test.tex, the folder it's in is curriculum vitae
 
Sean Allred
Sean Allred
@Danu ^^^ but please rename your folder
 
DanielSank
DanielSank
GET RID OF THE DAMN SPACES
:)
 
Sean Allred
Sean Allred
@DanielSank chill breh XD
 
Danu
Danu
10:49 PM
this is what I was talking about when I talked about "angry" earlier
 
Kyle Kanos
Kyle Kanos
CAPITAL LETTERS MAKE ME ANGRY
 
Sean Allred
Sean Allred
@Danu as with all things internet, take it with a grain of salt :)
 
Danu
Danu
It still doesn't do anything
folder is now called CV
 
DanielSank
DanielSank
@Danu: What does "doesn't do anything" mean? Error message?
 
Danu
Danu
it does not help
it gives the rerun blahblah again
with a ? at the end
 
Sean Allred
Sean Allred
10:51 PM
@Danu Alright. Crash course in the command line coming up.
 
Kyle Kanos
Kyle Kanos
I am beginning to understand why @Danu is not a computationalist :D :) ;)
 
Danu
Danu
@KyleKanos :D
too young
Never had to do this stuff
 
Kyle Kanos
Kyle Kanos
The files go in the computer!?
 
Sean Allred
Sean Allred
The stuff before the first > is your current folder. You want to cd (short for Change Directory) into the folder with your TeX file
So, cd Dropbox (enter), etc.
 
DanielSank
DanielSank
@Danu: Please post a screenshot of test.tex.
 
Sofia
Sofia
10:52 PM
@DanielSank:
Very well! Then, I intend to look for you on Saturday. Tomorrow and after tomorrow re too busy days for me. O.K. ?

@DanielSank Very well! Then, I intend to look for you on Saturday. Tomorrow and after tomorrow re too busy days for me. O.K. ?
 
Sean Allred
Sean Allred
From TeX.SX chat: 
\documentclass{article}
\usepackage{graphicx}
\begin{document}
\includegraphics[width=0.4\textwidth]{Danu.pdf}
\end{document}
 
Danu
Danu
^
 
Kyle Kanos
Kyle Kanos
as
 
DanielSank
DanielSank
@Sofia: Sure, I hope we will meet.
 
Sean Allred
Sean Allred
@danu rest assured your TeX file is correct (as long as Danu.pdf exists)
 
Sofia
Sofia
10:53 PM
@DanielSank: excellent!
 
Danu
Danu
Btw guys, I really think we're overdoing this. I'm pretty sure there's simple thing I messed up in the settings of TeXStudio
(no offense and all)
 
Sean Allred
Sean Allred
@Danu you're correct, but it would be good to understand what TeXstudio is doing
 
Kyle Kanos
Kyle Kanos
 
DanielSank
DanielSank
@KyleKanos: Ok, we get it :)
 
Kyle Kanos
Kyle Kanos
Took me forever to get it
 
Sean Allred
Sean Allred
10:54 PM
@Danu But if you prefer -- somewhere in TeXstudio there is a menu option called run or build or sompile or something like that
 
Kyle Kanos
Kyle Kanos
I'm now using a Mac because I'm proctoring an exam
Stupid Meta key instead of CTRL key
 
Danu
Danu
@SeanAllred ...I know this! I gave you screenshot of it lol
 
Sean Allred
Sean Allred
Force run pdflatex instead of latex
 
DanielSank
DanielSank
@SeanAllred: He pasted a link to a screenshot above.
 
Danu
Danu
I tried this, it didn't help
 
Sean Allred
Sean Allred
10:55 PM
@DanielSank As he did on TeX.SX
 
Danu
Danu
^ again lol
 
Sean Allred
Sean Allred
@Danu Then no offense, but you're doing it wrong :(
That's part of the reason we were going through the command line to confirm the issue
 
DanielSank
DanielSank
+1 for starting from the basics.
 
Danu
Danu
@SeanAllred Ok, how do I do it. Just change the compiler to pdflatex, no?
 
Sean Allred
Sean Allred
@Danu Yes, that should do it.
 
Danu
Danu
10:56 PM
Default compiler is now latex -> pdflatex
 
Sean Allred
Sean Allred
Anywhere you see latex, just use pdflatex
 
Danu
Danu
yes, this didn't work
 
Sean Allred
Sean Allred
then we have to go through the command line
if the command line works, you should use a different editor
because this one is borked beyond repair
 
Danu
Danu
@SeanAllred I can reinstall
 
Sean Allred
Sean Allred
(plus, I believe TeXstudio isn't very well maintained... it may legitimately be buggy)
 
DanielSank
DanielSank
10:57 PM
@I think we should go back to the command line and verify that at least that works.
 
Danu
Danu
@SeanAllred Do you have any recommendations for a better editor? I'm open for changing
 
Sean Allred
Sean Allred
@DanielSank He's getting the banner so the distribution is functional
 
DanielSank
DanielSank
@Danu If you are reinstalling I would personally recommend TexMaker. It is fantastic.
 
Sean Allred
Sean Allred
You would probably feel at home with TeXmaker
 
DanielSank
DanielSank
@SeanAllred Yeah but it would be nice to see that he can get a pdf out.
 
Sean Allred
Sean Allred
10:58 PM
@DanielSank True
 
DanielSank
DanielSank
As a bonus, Texmaker works in Linux too in case you ever switch.
 
Sean Allred
Sean Allred
@Danu If you want an editor with a lot of other goodies (integrated R, etc.) check out emacs :) It's what I use, but it's definitely not for those who just want to get the pdf and go home.
 
Kyle Kanos
Kyle Kanos
I personally like Kile
 
Sean Allred
Sean Allred
@KyleKanos I think you're biased :)
But honestly, I never really liked kile. Too much like N++/gedit/etc.
 
Danu
Danu
I'll give it a shot with texmaker
 
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