They just seem... average and way too musical with not very interesting parody content.
user228700
@JohnRennie It was similar, yeah. Today I gotta make Potato rice! Dunno if it's apparent, but I'm learning how to cook some basic stuff before leaving for college.
When you transfer to SB how do they determine your final grade when you graduate? Do they take into account your first year grade at the previous university or are you starting from scratch?
@JohnRennie My point is: I have 5 subjects this semester: Computer Architecture, Programming, Mulivariable Real Analysis, Mechanics and Waves, Management
I have already passed Computer Architecture and Programming
I don't even have to go to my final and I will still pass
Management is ez, so I'll figure it out
Now, Mechanics and Analysis is a whole other deal, I am SCREWED in those
I'd have to go full crazy like I did last semester now to even stand a chance at passing
Do whatever that makes you happy. If you feel the need to learn multivariable real analysis, learn and not for the finals because they don't matter (that's what I extract from your comments).
@BernardoMeurer Then you should just take it easy on multicalc. Learn whatever that makes you feel like learning it. Do you have any interest at all about this stuff?
You might end up learning more if you don't exhaust yourself down for a month on that exam.
Topology and continuity in Rn, Differential calculus in Rn, Taylor series and extrema, Multiple integration, Inverse and implicit function theorems, Differentiable manifolds, Integration in scalar fields on manifolds, line integrals in vector fields, Integrating on vector fields over manifolds
Ted also has a book, but it's expensive and does not exist on internet. Maybe you can find it in your university library or something. It's where I learnt multicalc.
@Slereah Well, you can compactify on a torus. The result looks nothing like the standard model, though
And the main aim of string phenomenology is to understand compactifications that produce the features of the Standard Model like (Chiral) fermions or (non-Abelian) gauge fields
For spinors, if you begin from a quadratic form $Q(x,x) = \eta_{\mu \mu} x^{\mu} x^{\mu}$ over $\mathbb{R}$ and try to factor it as the square of a linear form, $\eta_{\mu \mu} x^{\mu} x^{\mu} = (p_{\mu} x^{\mu})^2$, both $p_{\mu} x^{\mu}$ and $- p_{\mu} x^{\mu}$ could have been used, similarly over $\mathbb{C}$ we could have scaled it by $e^{i\theta}$, I guess this links to projective representations?
@TheDarkSide 1. We do not reject edits for being "too minor" anymore. 2. Even if we did, I consider proper spelling of multiple words not insignificant.
@TheDarkSide The worry about insignificant edits has always been that authors can use them to bump their post and get unfair attention. I've never been convinced this was an issue, and in this case it isn't the author doing the editing.
If someone has taken the time and trouble to go through a post and tidy it up, even if it's only minor tidying, it seems churlish to reject their edit.
@TheDarkSide Considering how easy it is to write completely wrong answers that look authoritative and earn some upvotes, people farming rep through well-intentioned copy editing does not strike me as something we should prevent
@JohnRennie We (the mods) see it once or twice a year, so I wouldn't call it a big problem. At least half of the time a quite word suggesting they do fewer more comprehensive edits is enough.
@TheDarkSide That's what I would call a 'blue pencil' edit, but he's taken care a a bunch of minor problems at once so I consider it a nicely done job.
@TheDarkSide Well, because we didn't want to bump posts just for a single apostrophe or the like. I wouldn't have rejected this edit as too minor even back then
@dmckee and @ACuriousMind - Yes, I concur that this case is borderline even by some stringent criteria. That's why I consulted before doing anything with it.
@JohnRennie I was curious, did you ever get a resolution to the energy question re: de Sitter space you had yesterday? (not that I'm not in a position to understand the answe)
Our GR experts tend not to visit the chat room, and I'm not sure I can make the question coherent enough to post on the main site. Maybe I'll try to make it a bit more focussed and post it.
I was thinking about developing an app to determine whether a watermelon is good or not based on analyzing the sound it makes when tapped...turned out there's already one:
@JohnRennie The only thing that I could think of is that it's got something to do with an implicit 'some of the co-ordinates are functions of time' or something, but that's one of those extremely wild guess moments
When minimizing a function of the form $f(\vec{x}) = \frac{1}{2} \| \vec{r(x)} \|^2_2, \quad \vec{r(x)} \in \mathbb{R}^m$, the $\frac{1}{2}$ is put in front of the function because if we derive $\| \vec{r(x)} \|^2_2$ a $2$ comes down and cancels the $\frac{1}{2}$, right?
@JaimeGallego if $\text{importance of document}$ belongs to $\mathbb{R}_{>0}$ you can't find a coefficient that keeps $P \leq 1$ for all $\text{importance of document}$s.
How are you gonna deal with that?
It's similar to a non-normalizable state. Maybe others who know more QM can help
$P(ignore) = \frac{1}{1+e^{x-5}}$ with $x \in [0, 10]$
Good old logistic functions
Plus it defines more realistic behavior, some do sit on worthless papers :P
@Mostafa When the cat got into a box, we used to grab a marker, scribble "I am homeless, please give me food" on a paper, and put the sign in front of her
