## Search found 501 matches

Sat Feb 02, 2013 9:05 pm UTC
Forum: General
Topic: Midnight is the begining of the day
Replies: 18
Views: 4551

### Re: Midnight is the begining of the day

Although I am aware of the correct usage, I believe it should be changed. Midnight means "The middle of the night". When you think of, let's say, Friday night, you think of the period on Friday when you go to sleep, followed by waking up on Saturday morning. The middle of Friday night wou...
Fri Feb 01, 2013 7:36 pm UTC
Forum: Mathematics
Topic: "fouriest" transformations
Replies: 9
Views: 3076

### Re: "fouriest" transformations

only if its a terminating 5-imal.
Fri Feb 01, 2013 6:59 am UTC
Forum: Mathematics
Topic: (HW) Equicontinuous and pt-wise convergence implies uniform
Replies: 7
Views: 3687

### Re: (HW) Equicontinuous and pt-wise convergence implies unif

Yeah, but personally I find it easier to think about it this way. I mean yes, if given compactness you either have to choose a sequence, or a set of open sets. But there's a difference in what sets you choose, there are usually many ways to do it. I don't think they are the same hint...but whatever.
Thu Jan 31, 2013 10:47 pm UTC
Forum: Mathematics
Topic: (HW) Equicontinuous and pt-wise convergence implies uniform
Replies: 7
Views: 3687

### Re: (HW) Equicontinuous and pt-wise convergence implies unif

I'll give a slightly different hint. For any x in K, equicontinuity can give us a ball around it on which none of the functions deviate from their value at x by more that some chosen buffer (epsilon/2) perhaps. Compactness allows us to choose a finite number of these neighborhoods that cover...
Wed Jan 30, 2013 11:44 pm UTC
Forum: School
Topic: How to make teachers friendlier and easier to talk to?
Replies: 16
Views: 14396

### Re: How to make teachers friendlier and easier to talk to?

Wait, did your history teacher report what you said in a bad way? Anyway, a lot of it has to do with culture at a school, if teachers are aloof and scary, no one will talk to them. At my high school, which I will admit was a very progressive private school, we called teachers by their first names, h...
Tue Jan 29, 2013 4:11 pm UTC
Forum: Science
Topic: Mining/Manufacture in Space!
Replies: 9
Views: 1966

### Re: Mining/Manufacture in Space!

tms wrote:As long as the explorers are in no hurry to return to Earth. Or never were here...

Unfair. We can almost certainly launch a few people for a whole hell of a lot less than launching the entire ship needed for the journey
Thu Jan 24, 2013 8:25 pm UTC
Forum: Mathematics
Topic: ISO giant tech tree of math
Replies: 14
Views: 3384

### Re: ISO giant tech tree of math

This book supposes only that the reader is familiar with naive set theory...
Thu Jan 24, 2013 2:37 pm UTC
Forum: General
Topic: Hifaleetin' thoughts
Replies: 90225
Views: 9389808

### Re: Screechings of the Great Unwashed (Meander to the Morgue

Dan Brown is writing another Langdon book? At some point doesn't he have to start explaining why every woman on the planet has disappeared after becoming Langdon's love interest...oh god...he's a serial killer.
Thu Jan 24, 2013 5:22 am UTC
Forum: General
Replies: 48
Views: 9929

Yeah, I've also always thought it would be more interesting to situate myself as sort of an ultimate arbiter, watching all the world and stepping in when injustice struck. Frankly my world domination fantasies are less "Bwahahaha take over the world" and more imagining myself stepping into...
Wed Jan 23, 2013 9:32 pm UTC
Forum: General
Replies: 48
Views: 9929

Yeah, of course. I have my schemes. As I see it, a good world conqueror at this point would need to be businessman with almost a stranglehold on both defense contracting/arms manufacture, and computing/intelligence. The plan would take decades of careful management, keeping yourself on top of the ec...
Wed Jan 23, 2013 2:02 am UTC
Forum: Mathematics
Topic: A Calculus Sort of Question
Replies: 17
Views: 3181

### Re: A Calculus Sort of Question

One function that you might be interested in is the Cantor function.
Tue Jan 22, 2013 9:13 pm UTC
Forum: Mathematics
Topic: ISO giant tech tree of math
Replies: 14
Views: 3384

### Re: ISO giant tech tree of math

Probably has fractional dimension.The giant fractal hyperskyscraper of math.
Tue Jan 22, 2013 2:36 pm UTC
Forum: Mathematics
Topic: A Calculus Sort of Question
Replies: 17
Views: 3181
Miss-stated by me, more rigorously I'm referring to the behavior of the function around the points, not at the points. Doesn't make much more sense. The set of rationals (same for the irrationals) is dense in ℝ, its only open neighborhood is the entire number line. Everywhere is "around" ...
Mon Jan 21, 2013 4:26 pm UTC
Forum: News & Articles
Topic: Are you Ready for some "Football"!!! NFL Discussion
Replies: 804
Views: 169275

### Re: Are you Ready for some "Football"!!! NFL Discussion

Heisenberg wrote:
Dark Avorian wrote:LET THE HARBOWL BEGIN!

Can we have another doping scandal or something? I really can't handle two weeks of SuperBro coverage.

I know. As I was rooting for my ravens, I began to curse the 49ers win.
Mon Jan 21, 2013 3:26 am UTC
Forum: Mathematics
Topic: A Calculus Sort of Question
Replies: 17
Views: 3181

### Re: A Calculus Sort of Question

Just to make one point, (1) is trivially impossible as a result of the intermediate value theorem for derivatives. Another result of this implies that for (2), if f'(x) = a then on any arbitrarily small interval about x, f' takes on every value between 0 and a. Also, (1) makes no sense, increasing a...
Mon Jan 21, 2013 3:17 am UTC
Forum: News & Articles
Topic: Are you Ready for some "Football"!!! NFL Discussion
Replies: 804
Views: 169275

### Re: Are you Ready for some "Football"!!! NFL Discussion

LET THE HARBOWL BEGIN!
Fri Jan 18, 2013 1:03 am UTC
Forum: General
Topic: Car horns
Replies: 266
Views: 24710

### Re: Car horns

Please, someone, anyone, educate me on two points: 1) If 100% of all accidents were reported and merge errors represented 5% of that total, which is the major concern, the 5% that are merge errors or the 95% that are not? Both of the numbers are large and all are important to those involved but whi...
Mon Jan 14, 2013 2:12 am UTC
Forum: General
Topic: Hype your ripe snipes 'n' gripes
Replies: 28619
Views: 3585941

### Re: Pant Thread (because we need more panting)

Also, I go to subway all of once a year, so I literally have no fucking clue what any of the various and sundry toppings I can order are. Thus telling me to know what I want before I get there is kind of pointless.
Mon Jan 14, 2013 2:05 am UTC
Forum: General
Topic: Hype your ripe snipes 'n' gripes
Replies: 28619
Views: 3585941

### Re: Pant Thread (because we need more panting)

At the register, at least once a week Cashier: What kind of sandwich did you order? Customer: That one. *points at sandwich* Cashier: What kind is it? Customer: A footlong. Cashier: What kind of sandwich is it? Customer: It was on wheat bread. * Cashier: What kind of sandwich did you order? <Read a...
Thu Jan 10, 2013 10:41 pm UTC
Forum: General
Topic: Car horns
Replies: 266
Views: 24710

### Re: Car horns

I'm curious, Davidy: do you drive? I do, and have done so for 57 years now. Why do you ask? You seem quite naive with respect to how the roads work. You said you mainly drive in a rural area? I suppose that partially explains it. I had a traffic light near my house where you could get maybe 2 cars ...
Thu Jan 10, 2013 12:29 am UTC
Forum: Books
Topic: Wheel of Time (Split from Geeky/Nerdy Kids Books)
Replies: 228
Views: 129895

### Re: Wheel of Time (Split from Geeky/Nerdy Kids Books)

Yeah, I bought the book at around 1, started reading at 2:30pm, and stayed up till 1am to finish. Fuck college work, Imma finish my childhood. I dunno, I didn't feel like GRRM was running the show. He's one for random senseless death. Most of the deaths here were fearsomely awesome, or total...
Wed Jan 09, 2013 1:34 pm UTC
Forum: Books
Topic: Wheel of Time (Split from Geeky/Nerdy Kids Books)
Replies: 228
Views: 129895

### Re: Wheel of Time (Split from Geeky/Nerdy Kids Books)

Holy sweet fuck. That was a bloodbath. Also bloody Mat cauthon for the win. And Androl.
Sat Jan 05, 2013 8:47 pm UTC
Forum: Movies and TV Shows
Topic: The Hobbit
Replies: 217
Views: 82167

### Re: The Hobbit

I'm a big fan of tolkien, read LOTR and the Hobbit at 9 and have reread them many times since. I absolutely loved this. I mean, I understand the critiques, and I even accept them, but I just loved this movie, the utter ridiculousness of the action, the lore dripping out of every pore. I don't know w...
Thu Dec 27, 2012 8:53 pm UTC
Forum: Mathematics
Topic: Complex Polynomial with Certain Properties
Replies: 18
Views: 2597

### Re: Complex Polynomial with Certain Properties

that definitely doesn't work as the complex zeroes of the imaginary part certainly don't all lie in the unit circle
Sun Dec 23, 2012 3:08 pm UTC
Forum: Fictional Science
Topic: The Light Saber problem
Replies: 122
Views: 66830

### Re: The Light Saber problem

Just a point, but there actually is a use for a lightsaber, you dismissed it as being useless because you can blast walls down with a grenade or bomb. Well...that's great unless you're in a tight space and can't back up.
Sun Dec 23, 2012 3:03 pm UTC
Forum: Science
Topic: Entropy and mathematical truths
Replies: 24
Views: 5874

### Re: Entropy and mathematical truths

Integration could kind of be seen as creating information. If I integrate a function I get something that is continuous, and probably almost everywhere differentiable (not sure on that one but I think it's true). Integrate again and I get something that is differentiable. Integrate again and I get s...
Sat Dec 22, 2012 4:09 pm UTC
Forum: Science
Topic: Entropy and mathematical truths
Replies: 24
Views: 5874

### Re: Entropy and mathematical truths

I'd actually argue differentiation is in many ways harder. Having spent the past long while dealing with the very theoretical side of both, you can integrate a damn bundle of functions, but you can barely differentiate any. EDIT: Hmmm...actually... I guess this isn't really a counter argument. Diffe...
Wed Dec 19, 2012 2:21 am UTC
Forum: General
Topic: Most excellent times
Replies: 5132
Views: 925191

I'm sure my adviser would've been right about most people, but hot damn I just aced both the honors classes she told me not to double up on.
Sun Dec 09, 2012 8:03 pm UTC
Topic: Atlantic Article on Gender Roles and Children's Play
Replies: 13
Views: 4944

### Re: Atlantic Article on Gender Roles and Children's Play

Yeah, just considering one tiny argument here about how boys were according toy cars a higher status...well why? I mean I maybe buy that boys and girls have different archetypal narratives in creative play (maybe)... but I don't buy that male hormones are attracting us to cars. Clearly none of this ...
Sun Dec 09, 2012 2:48 am UTC
Forum: Mathematics
Topic: Analysis: Convergence of series divided by sum of tail terms
Replies: 4
Views: 2246

### Re: Analysis: Convergence of series divided by sum of tail t

Umm...where are you getting these problems. Because I did these a while ago from Rudin and he had fairly generous hints on where to go.
Fri Dec 07, 2012 7:59 am UTC
Forum: General
Topic: Hifaleetin' thoughts
Replies: 90225
Views: 9389808

### Re: Screechings of the Great Unwashed (Meander to the Morgue

Bu... DARK CHOCOLATE 4EVAH!
Thu Dec 06, 2012 7:55 pm UTC
Forum: Mathematics
Topic: Pairwise distances all equal to 1 in D dimensions
Replies: 7
Views: 1250

### Re: Pairwise distances all equal to 1 in D dimensions

Oops. well, I suppose the last point has to be a scalar multiple of (1,1, ... , 1) = v

So in k-space this is some a*v, where a is real.

1 = |av - sqrt(2)/2 * u_i|^2 = (k-1)a^2 + (a - sqrt(2)/2)^2

0 = ka^2 - sqrt(2)a - 1/2

a = [sqrt(2) (+/-) sqrt(2 + 2k )]/2k
Thu Dec 06, 2012 6:51 pm UTC
Forum: Mathematics
Topic: Pairwise distances all equal to 1 in D dimensions
Replies: 7
Views: 1250

### Re: Pairwise distances all equal to 1 in D dimensions

In k-space, just use the points

u_i * (sqrt(2)/2)

where u_i are the k orthonormal unit vectors
Wed Dec 05, 2012 2:56 am UTC
Forum: General
Topic: Questions For The World
Replies: 2216
Views: 458552

### Re: Questions For The World

I have 9 hours of class a week, plus 2 hours in problem/discussion sections, and a 4 hour lab, taking a load of three classes. But I do like 40 hours of homework a week easy.
Tue Dec 04, 2012 8:56 pm UTC
Forum: Books
Topic: Wheel of Time (Split from Geeky/Nerdy Kids Books)
Replies: 228
Views: 129895

### Re: Wheel of Time (Split from Geeky/Nerdy Kids Books)

Also, time is cyclical, so there's no need for Mosk and Merk to fall after Artur in the view of the people in this story.
Tue Dec 04, 2012 7:06 am UTC
Forum: General
Topic: Dealing with hate.
Replies: 36
Views: 5032

### Re: Dealing with hate.

Yeah, you seem like one of the very reasonable ones. Although, that energy argument made me cringe. Once you get far enough, energy is so totally demystified, as simply a necessary conserved quantity that must arise from some calculations in a system symmetric with respect to time, that I can't ...
Tue Dec 04, 2012 6:12 am UTC
Forum: General
Topic: Dealing with hate.
Replies: 36
Views: 5032

### Re: Dealing with hate.

Possibly unwanted thoughts on this. The worst is to be attacked with hate when you're simply trying to help someone. I was nearly banned from another forum for this. Someone had posted that they thought they may be depressed, and was wondering what to do about it. Nearly everyone was telling the...
Sun Dec 02, 2012 8:19 pm UTC
Forum: General
Topic: Hifaleetin' thoughts
Replies: 90225
Views: 9389808

### Re: Screechings of the Great Unwashed (Meander to the Morgue

Look outside (as in, look at general)
Sun Dec 02, 2012 7:32 pm UTC
Forum: General
Topic: Hifaleetin' thoughts
Replies: 90225
Views: 9389808

### Re: Screechings of the Great Unwashed (Meander to the Morgue

So ends the saga of steve waterman and the xkcd adventures. May they be quickly forgotten.
Sat Dec 01, 2012 10:57 pm UTC
Forum: General
Topic: Relativity or something [Split from "Pressures"]
Replies: 5149
Views: 516065

### Re: Relativity (?) Or Some Crap. [Split from "Pressures"]

EVERYBODY DANCE! DO THE LORENTZ TRANSLATION!