Search found 77 matches

by daryuu
Sat Jan 29, 2011 10:36 am UTC
Forum: News & Articles
Topic: Riots in Egypt
Replies: 380
Views: 38631

Re: Riots in Egypt

Some pics of the action in the spoiler, for anyone who wants to see them. Be warned, there are some very graphic pictures of a man shot in the face...

by daryuu
Sat Jul 03, 2010 11:17 pm UTC
Forum: News & Articles
Topic: Michael Steele: Afghanistan is a war of Obama's choosing
Replies: 26
Views: 4001

Re: Michael Steele: Afghanistan is a war of Obama's choosing

Texas_Ben wrote:
bentheimmigrant wrote:shear stupidity


It goes well with his avatar, though.
by daryuu
Fri Aug 07, 2009 12:21 pm UTC
Forum: Language/Linguistics
Topic: Why Don't Verbs Conjugate with the Object?
Replies: 102
Views: 14995

Re: Why Don't Verbs Conjugate with the Object?

I don't have anything to contribute to the main topic, but I was reading through and wanted to reply to this: But yeah, I think "be" is irregular in every natural language (including Turkish which I remember reading once only has that one irregular verb, but I could be mistaken), but perha...
by daryuu
Wed Aug 05, 2009 3:50 am UTC
Forum: Language/Linguistics
Topic: expressions/turns of phrase tha you love . . . share the joy
Replies: 52
Views: 7180

Re: expressions/turns of phrase tha you love . . . share the joy

I always enjoyed the Japanese phrase "moushiwake arimasen" (申し訳ありません), just because it seems so stereotypically Japanese to me. It's a common apology that literally translates to something like "there is no apology/excuse," as though what you've done is so heinous that no one cou...
by daryuu
Mon Aug 03, 2009 10:14 pm UTC
Forum: Serious Business
Topic: On The Viability Of Fusion Power
Replies: 22
Views: 3864

Re: On The Viability Of Fusion Power

Well, my understanding is that other physicists have said that it's theoretically possible, so it seemed worth mentioning. Besides, the company doing the research expects to be able to demonstrate net gain within about five years, and for just over $50 million. That's hardly any money (or time) at a...
by daryuu
Mon Aug 03, 2009 10:44 am UTC
Forum: Serious Business
Topic: On The Viability Of Fusion Power
Replies: 22
Views: 3864

Re: On The Viability Of Fusion Power

I find it a little surprising that no one has mentioned the prospect of piston powered fusion. Does no one read slashdot anymore?
by daryuu
Sat Jul 11, 2009 1:19 pm UTC
Forum: The Help Desk
Topic: Trouble with a TrueCrypt volume (and then some)...
Replies: 2
Views: 2176

Trouble with a TrueCrypt volume (and then some)...

I've been struggling with this problem for about an hour and am completely out of ideas, so I hope someone will be nice enough to help me... First I'll give some specs: I'm running XP SP2, the external drive that will soon be mentioned is a 2 T B WD My Book, and the version of TrueCrypt in question ...
by daryuu
Wed Aug 27, 2008 2:49 am UTC
Forum: Mathematics
Topic: Quick rate question...
Replies: 20
Views: 2854

Re: Quick rate question...

Are you sure this isn't a case of miscommunication? Note that "hen" does not have to refer to a chicken, though I'm pretty sure that chickens lay at most one egg per day...
by daryuu
Sat Aug 02, 2008 8:46 am UTC
Forum: Logic Puzzles
Topic: My write-up of the "Blue Eyes" solution (SPOILER A
Replies: 1368
Views: 420912

Re: My write-up of the "Blue Eyes" solution (SPOILER A

Now, that being said, the solution for this problem is this: If day 1 is the time when all inhabitants start to "exist" on the island, then any group of K people will always leave on day K. In order to find out what color eye you have, select the eye color of the smallest group that you s...
by daryuu
Tue Jul 22, 2008 2:44 am UTC
Forum: Logic Puzzles
Topic: An input/output puzzle thread
Replies: 77
Views: 6978

Re: An input/output puzzle thread

If you're going to use kanji, place the hiragana for them right afterward, in brackets. The kanji doesn't actually matter; if it's something involving words, it's usually to do with alphabet. I was pretty much just making sure you weren't doing something overly complex, like translating the words t...
by daryuu
Mon Jul 21, 2008 10:09 pm UTC
Forum: Logic Puzzles
Topic: An input/output puzzle thread
Replies: 77
Views: 6978

Re: An input/output puzzle thread

I hope everyone can read hiragana and katakana... Inputs: いち に さん し よん ご まち さと だいら みち みず ひ つち かみなり じしん じこう でんわ でんぱ でんそう すいか はなび うみ ふね たいふう つなみ ふうろう みらい むかし いま きょう こんにち あした みょうにち きのう さくじつ おととい あさって しぼう ぼうくん ゆうかいじけん はんにん さつじん どろぼ いほうこうい ちがう たべる のむ ござる くださる ばくはつする うつ てっぽう ショック ハワイ ホノルル オレゴン メキシコ カナダ アメ...
by daryuu
Thu Jul 10, 2008 3:07 am UTC
Forum: The Help Desk
Topic: Crashing when playing video
Replies: 14
Views: 2069

Re: Crashing when playing video

A cursory googling yielded this , but it doesn't say much of anything that hasn't already been said here... Under cause they do list "Vendor-specific detected hardware problems," so it might be worthwhile to uninstall the driver and see if that's causing the problem. Also, have you checked...
by daryuu
Thu Jul 10, 2008 12:48 am UTC
Forum: Language/Linguistics
Topic: Words that Firefox does not recognize
Replies: 26
Views: 5197

Re: Words that Firefox does not recognize

I'm on FF3, and it is very odd to me that "indices" gets a red line under it. "Möbius" and "café" are both considered wrong too... "Raptor" isn't, though, and I'm pretty sure that "Euler's" is the only thing I've ever added.
by daryuu
Wed Jul 09, 2008 10:39 pm UTC
Forum: Mathematics
Topic: Book Fishing!
Replies: 2
Views: 1248

Re: Book Fishing!

As long as the thread is here, I guess I should recommend David M. Burton's Elementary Number Theory . It's a bit pricy, but you can usually find new copies for about half price from various sellers... I'm not all that far through it yet (I just got to chapter five), but from what I've read he does ...
by daryuu
Tue Jul 08, 2008 8:00 pm UTC
Forum: Computer Science
Topic: Any computer musicians here
Replies: 16
Views: 3983

Re: Any computer musicians here

In the code I copied from your post, there was nothing to reset the positions of the clips when they were done playing. I ran it, and the sound lasted about a half second (though the program continued to run for quite a while). Then I made a slight modification to the getTone() function, making the ...
by daryuu
Mon Jul 07, 2008 6:54 pm UTC
Forum: Computer Science
Topic: Any computer musicians here
Replies: 16
Views: 3983

Re: Any computer musicians here

musicmunky, that code will only play each note once... You'll get a much longer (and creepier) melody if you add code to wait for a note to finish and then reset its position before playing it again. The pacing is a bit slow this way (I made a list of the first 10,000,000 primes mod 13, but I don't ...
by daryuu
Fri Jul 04, 2008 6:52 pm UTC
Forum: Logic Puzzles
Topic: Light board communication.
Replies: 16
Views: 2421

Re: Light board communication.

Ashbash: Since Cauchy is representing each light as a number, that means that each light has a binary representation with at most six significant bits, and he's performing the xor on that. And you don't necessarily need things to come in pairs: 101010 xor (111100 xor 101001) = 101010...
by daryuu
Fri Jul 04, 2008 11:25 am UTC
Forum: Mathematics
Topic: Where can I get a slide rule?
Replies: 10
Views: 2031

Re: Where can I get a slide rule?

If you have access to a good enough printer, I would suggest you make one yourself. That should be about as cheap as they come...
by daryuu
Fri Jul 04, 2008 9:56 am UTC
Forum: Logic Puzzles
Topic: Light board communication.
Replies: 16
Views: 2421

Re: Light board communication.

Ah, see, that's where I was misunderstanding you: I thought you meant xor as the sum of the lights which are turned off (as in, negate the states and sum the values)... I'm not really sure why I would think that (besides it making no sense and being inconsistent with the other things...
by daryuu
Fri Jul 04, 2008 9:10 am UTC
Forum: Logic Puzzles
Topic: Light board communication.
Replies: 16
Views: 2421

Re: Light board communication.

Anyway, would you prefer I use log? It's going to be either ln or log, so choose one. You could always do "log 2 " to avoid ambiguity, but in this case I think log by itself is the most naturally applied (if only because I've never seen log 10 actually used for anything... Any...
by daryuu
Fri Jul 04, 2008 8:07 am UTC
Forum: Logic Puzzles
Topic: Light board communication.
Replies: 16
Views: 2421

Re: Light board communication.

Wait, what? For any initial state and any target value, you can get to a state of the target value by flipping the light whose number corresponds to the bitwise xor of the initial state's value and the target value. This is because xor is associative and commutative and the inverse of any number...
by daryuu
Fri Jul 04, 2008 5:30 am UTC
Forum: Logic Puzzles
Topic: Light board communication.
Replies: 16
Views: 2421

Re: Light board communication.

Communicating boolean values is easy: make the light in the top left corner match the light to its immediate right if true, or make it different if false... I can't really think of a way to transfer more than that, though, unless you could guarantee that certain patterns (or their inverses) would ap...
by daryuu
Fri Jul 04, 2008 4:57 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0445: "I Am Not Good with Boomerangs"
Replies: 132
Views: 41273

Re: "I Am Not Good with Boomerangs" discussion

Deadweight wrote:This comic is best read diagonally, bottom right to top left is my favorite.


I think that panels 5, 10, 15, and 4 make a better story...
by daryuu
Tue Jul 01, 2008 12:05 pm UTC
Forum: Mathematics
Topic: Rate-of-change Calculus problem
Replies: 4
Views: 1218

Re: Rate-of-change Calculus problem

Whoops, sorry about that... I'm not quite sure why my mind did this, but when I first tried it I put both .9s in the numerator. Anyway, yeah, your answer is fine...
by daryuu
Tue Jul 01, 2008 9:36 am UTC
Forum: Mathematics
Topic: Rate-of-change Calculus problem
Replies: 4
Views: 1218

Re: Rate-of-change Calculus problem

You forgot to use the chain rule... Other than that I'm not seeing a problem.
by daryuu
Tue Jul 01, 2008 9:25 am UTC
Forum: Logic Puzzles
Topic: Triathalon of the titans (solutions)
Replies: 3
Views: 1863

Re: Triathalon of the titans (solutions)

Sorry for double posting again, but I'm posting the solution and want to make sure that anyone interested in it sees unread posts... It's been over a week since I asked if anyone was still working on this, so it's your own fault if you didn't reply. On the other hand, I just realized while typing th...
by daryuu
Sun Jun 29, 2008 7:06 am UTC
Forum: Mathematics
Topic: What's that process called? Where you break fractions?
Replies: 5
Views: 1460

Re: What's that process called? Where you break fractions?

I'm going to assume that you're asking about partial fractions.
by daryuu
Sat Jun 28, 2008 5:36 am UTC
Forum: Mathematics
Topic: Question About the Pythagorean Theorem
Replies: 40
Views: 7672

Re: Question About the Pythagorean Theorem

If you're looking for a proof that really explains why it's true, the best I can think of is this proof of the law of cosines: Let u and v be vectors in R n . Then |u+v|^2 = \sum_{i=0}^n{p_i(u+v)^2} = \sum_{i=0}^n{\left(p_i(u)^2 + 2p_i(u)p_i(v) + p_i(v)^2\...
by daryuu
Fri Jun 27, 2008 1:15 am UTC
Forum: Logic Puzzles
Topic: another "what is the sequence" puzzle
Replies: 17
Views: 3973

Re: another "what is the sequence" puzzle

Aw, dang it... The reason I couldn't think of the more general answer was that in numbers like 269 I assumed the selection method was different when I saw that no pair of the digits summed to five. So, basically, I got caught up on even multiples of ten and ignored odd ones... Oh well, at least ...
by daryuu
Thu Jun 26, 2008 6:01 pm UTC
Forum: Logic Puzzles
Topic: another "what is the sequence" puzzle
Replies: 17
Views: 3973

Re: another "what is the sequence" puzzle

I'm getting to the point where I don't care who solves it, I just want to see the solution... In that spirit, here are the few things I've managed to notice, with the hopes that someone else will figure it out: For any positive integer n, n is in the list if (but not only if) one or more of ...
by daryuu
Mon Jun 23, 2008 6:13 am UTC
Forum: Logic Puzzles
Topic: Fairly simple hat puzzle
Replies: 32
Views: 4115

Re: Fairly simple hat puzzle

Okay, now I feel like an idiot... I missed the word "positive" somehow, and was assuming non-negative instead.
by daryuu
Sat Jun 21, 2008 9:29 pm UTC
Forum: Mathematics
Topic: proving the "bac cab rule"
Replies: 13
Views: 7445

Re: proving the "bac cab rule"

Cosmologicon wrote:That can't be right. Your right-hand side is 0.


Oops... I fixed the typo now; thanks for pointing it out.
by daryuu
Sat Jun 21, 2008 6:15 am UTC
Forum: Logic Puzzles
Topic: Fairly simple hat puzzle
Replies: 32
Views: 4115

Re: Fairly simple hat puzzle

Umm... Should there be an upper bound on the numbers on the hats? I get the feeling that the answer is meant to be that B's hat and C's hat have the same number (since B's conclusion is based almost entirely on A's inability to figure it out), but that isn't the only situ...
by daryuu
Sat Jun 21, 2008 6:03 am UTC
Forum: Mathematics
Topic: proving the "bac cab rule"
Replies: 13
Views: 7445

Re: proving the "bac cab rule"

A quick googling for "proof Lagrange vector triple product" returned a number of articles. Someone named Robert C. Wrede apparently gave a proof which utilized tensor notation, but the one I actually bothered to login to JSTOR for (by Daniel T. Dwyer) proves a related identity instead: ...
by daryuu
Thu Jun 19, 2008 10:43 pm UTC
Forum: Logic Puzzles
Topic: Triathalon of the titans
Replies: 1
Views: 1874

Re: Triathalon of the titans

Sorry for the double post, but is anybody still working on this? If not, I'll probably put up the solution in a week or so...
by daryuu
Fri Jun 13, 2008 10:28 am UTC
Forum: Serious Business
Topic: Is intelligence malleable?
Replies: 25
Views: 6622

Re: Is intelligence malleable?

This is all very interesting... I'm glad I started the thread! It surprises me that so many of you define intelligence to be problem solving ability, particularly since I had barely even thought of them as being related, but I can definitely see how that would lead to an affirmative for question one...
by daryuu
Mon Jun 09, 2008 12:02 am UTC
Forum: Mathematics
Topic: What else can we imagine?
Replies: 32
Views: 4213

Re: What else can we imagine?

Those are also contained within the complex numbers. Given a complex number z=r(cos\theta+i*sin\theta) , the nth roots of z are given by: \sqrt[n]{r}\left(cos\left(\frac{\theta+2k\pi}{n}\right)+i*sin\left(\frac{\theta+2k\pi}{n}\right)\right) for k=0, ..., n-1. And yes...
by daryuu
Tue Jun 03, 2008 4:59 am UTC
Forum: Serious Business
Topic: Is intelligence malleable?
Replies: 25
Views: 6622

Is intelligence malleable?

I did a few searches and couldn't find a discussion about this, but feel free to delete the topic if it already exists... While on my way home today I remembered an old article from Scientific American , which talked about the differences in performance between those people who believe that intellig...
by daryuu
Mon Jun 02, 2008 7:37 am UTC
Forum: Logic Puzzles
Topic: My write-up of the "Blue Eyes" solution (SPOILER A
Replies: 1368
Views: 420912

Re: My write-up of the "Blue Eyes" solution (SPOILER A

So... my intuition was right, and it was just stupid of me to accept that I was wrong without thinking the argument through? I guess I can live with that...
by daryuu
Mon Jun 02, 2008 6:23 am UTC
Forum: Logic Puzzles
Topic: My write-up of the "Blue Eyes" solution (SPOILER A
Replies: 1368
Views: 420912

Re: My write-up of the "Blue Eyes" solution (SPOILER A

Oh, I didn't even think of that... I'll slowly back out of the thread, now...

Go to advanced search