Search found 2211 matches

by Flumble
Fri Nov 29, 2013 1:52 am UTC
Forum: Site/Forum issues
Topic: Forum is very very very slow
Replies: 69
Views: 37882

Re: Forum is very very very slow

davean wrote:Yah, well, they keep changing how they are attacking.

That's a bummer.
Either way, keep up the good work against the bots. :)
by Flumble
Wed Nov 27, 2013 2:21 pm UTC
Forum: Mathematics
Topic: comparing big numbers by hand
Replies: 7
Views: 1879

Re: comparing big numbers by hand

I would probably just calculate the answer. With addition-chain exponentiation you can get 3³³ = 3² ² ² ² ²×3 with 6 multiplications. Also, take a look at what powers of 3, 4 and 5 get close to 10 x . (you can use any base you like, but most people are better at estimating in base 10) Spoilered is t...
by Flumble
Wed Nov 27, 2013 1:42 pm UTC
Forum: Science
Topic: 3D visual perception
Replies: 40
Views: 6961

Re: 3D visual perception

Thanks for the responses so far. :) I guess it's not possible (avoiding brain interfaces for a moment) because our retina is surface-like and not a volume. This is pretty much how it is, and always will be. Having a 3D retina wouldn't help. Depth comes from cues such as parallax, shading, and probab...
by Flumble
Wed Nov 27, 2013 5:43 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1296: "Git Commit"
Replies: 49
Views: 10922

1296: "Git Commit"

http://imgs.xkcd.com/comics/git_commit.png Pop-up text: " Merge branch 'asdfasjkfdlas/alkdjf' into sdkjfls-final " This is so very true. If you're committing at a fast pace (especially when debugging a school project) the comments are often jibberish. That, or no comment at all, if the CV...
by Flumble
Tue Nov 26, 2013 1:07 pm UTC
Forum: Science
Topic: 3D visual perception
Replies: 40
Views: 6961

3D visual perception

Hi guys, in the maths board there's (yet another) discussion on 4D and it made me wonder whether it's possible for us to acquire 3-dimensional vision * in a (virtual) 4-dimensional space. Searches on the subject got me interesting results (among all the 3-dimensional TVs), but none are about 3-dimen...
by Flumble
Sun Nov 24, 2013 10:31 am UTC
Forum: Mathematics
Topic: Check result-condition number
Replies: 6
Views: 1841

Re: Check result-condition number

evinda wrote:Why is my result so different from yours???? :shock:

Did you not notice the little / in the middle? :roll:
The only difference is that you got ~5 digits of accuracy and Nathan got the exact result.
by Flumble
Sun Nov 24, 2013 10:26 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1292: Pi vs. Tau
Replies: 124
Views: 31173

Re: 1292: Pi vs. Tau

π wins 399533 times; τ wins 400213 times; 200254 ties Good, good... Now let us reject our arbitrary choice of taking decimal digits modulo 5 and using a specific RPS-configuration... unless τ wins using the quinary expansion and a specific RPS-configuration. I think one of the few 'fair' ways (inst...
by Flumble
Sun Nov 24, 2013 9:57 am UTC
Forum: Mathematics
Topic: Base Prime
Replies: 3
Views: 1956

Re: Base Prime

Can you think of advantages and disadvantages of this system? The biggest disadvantage IMO would be that position k requires p k+1 symbols to be able to represent all numbers, so the elements in your 'array' (a.k.a. positional notation) needs to be of arbitrary size. Oh and at first glance it looks...
by Flumble
Sat Nov 23, 2013 12:31 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1292: Pi vs. Tau
Replies: 124
Views: 31173

Re: 1292: Pi vs. Tau

Wnderer wrote:So is there a winner?

There shouldn't be, as pi and tau are believed to be normal numbers so their wins should even out.
by Flumble
Fri Nov 22, 2013 12:09 am UTC
Forum: Site/Forum issues
Topic: Forum is very very very slow
Replies: 69
Views: 37882

Re: Forum is very very very slow

The bots have receded for the moment it seems. I'll report back when I learn something. I'm all ears. :) That pool is currently overloaded by spam bots*, though I've sort of dropped a large chunk of China's IP space already*. Don't the spambots always annoy the pool or was/is this a large scale atta...
by Flumble
Thu Nov 21, 2013 4:51 pm UTC
Forum: Site/Forum issues
Topic: Forum is very very very slow
Replies: 69
Views: 37882

Re: Forum is very very very slow

After a database crash the forum is running at full speed for me now.


Why does the damn attachment system reject .htm and even .txt files? I just wanted to add the crash report I got about 10 minutes ago: http://updo.nl/file/97b867e7.htm
by Flumble
Wed Nov 20, 2013 1:55 pm UTC
Forum: Site/Forum issues
Topic: Forum is very very very slow
Replies: 69
Views: 37882

Re: Forum is very very very slow

Is there a dev/admin who'd like to speak up and acknowledge the problem, say the cause is known and the solution is underway and the site will be back to normal tomorrow? :D (I like such devs, especially if the problem is solved within the expected time) Oh and if Time's the cause, just delete all t...
by Flumble
Mon Nov 18, 2013 1:36 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1292: Pi vs. Tau
Replies: 124
Views: 31173

Re: 1292: Pi vs. Tau

The compromise should be the Chinese symbol for Rooster: 酉. I instantly agree, for it is a rooster. :D https://lh4.googleusercontent.com/-CsoSwfT17TI/UonLj7RSFmI/AAAAAAAA3YI/pLfUo-boH60/w512-h347-no/angle+table.png Am I being nerd-sniped here? (looking at the last two columns)
by Flumble
Sat Nov 16, 2013 11:04 pm UTC
Forum: Mathematics
Topic: Not sure
Replies: 18
Views: 2988

Re: Not sure

Obviously this is a perspective projection rather than a parallel projection. Well yeah, I was confused about that because the other projections were seemed were seemed parallel - is it possible to have a projection like David gave? (true, it's a second order projection, so you could combine a para...
by Flumble
Sat Nov 16, 2013 1:15 am UTC
Forum: Mathematics
Topic: Not sure
Replies: 18
Views: 2988

Re: Not sure

davidstarlingm wrote:which is extended at right angles:
Image

I still don't get this one. When using an isometric axonometric projection, every line along a certain axis should be parallel to one another, shouldn't it?
by Flumble
Fri Nov 15, 2013 4:17 pm UTC
Forum: Mathematics
Topic: Not sure
Replies: 18
Views: 2988

Re: Not sure

Aaaaaannnd I'm lost. I would love to hear an explanation for that if you've got the patience (But your time might be better spent elsewhere!) Thanks again! You could visualise it as a 'ghost cube' next to (or partly overlapping) your original cube of 8 blocks. (in maths it's called a hypercube tess...
by Flumble
Fri Nov 15, 2013 2:34 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1288: "Substitutions"
Replies: 147
Views: 41168

Re: 1288: "Substitutions"

I do find it hilarious that this thread has gone three pages without anyone noticing that the replacements are already happening on this forum... i find it hilarious that someone can post a statement like this wihout[sic] first checking its veracity. like, by reading three posts up. I find you all ...
by Flumble
Fri Nov 15, 2013 11:16 am UTC
Forum: Mathematics
Topic: How many digits of Pi do you know?
Replies: 445
Views: 105036

Re: How many digits of Pi do you know?

3.14159265

Xenomortis wrote:But to be honest, in situations where I don't have a calculating machine, π = 3.

I sometimes add another 1/20th of the result so you get another digit of precision. (assuming decimal)
by Flumble
Fri Nov 15, 2013 9:58 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1291: "Shoot for the Moon"
Replies: 67
Views: 16245

Re: 1291: "Shoot for the Moon"

da Doctah wrote:Depends on your vector. You could escape the Earth/Moon system but reduce your relative velocity around the Sun in such a way that your orbit will decay and you'll fall in.

Exactly; shoot for the moon during first quarter moon and you'll either reach it or become a sun god.
by Flumble
Sat Nov 09, 2013 4:34 pm UTC
Forum: Mathematics
Topic: Uniform Probability Distribution Over All Natural Numbers
Replies: 13
Views: 5047

Re: Uniform Probability Distribution Over All Natural Number

This discussion does bring up the question of how to treat an unknown distribution. For example, in one of those logic puzzles where the antagonist writes a natural number down and puts it in an envelope, you have no information about the method by which the number was selected. As such, you genera...
by Flumble
Sat Nov 09, 2013 1:31 am UTC
Forum: Mathematics
Topic: Uniform Probability Distribution Over All Natural Numbers
Replies: 13
Views: 5047

Re: Uniform Probability Distribution Over All Natural Number

Can't you state the probability of one value (or a finite range in an infinite space) as a limit, P(x=n)=limt->0+t ?
Without 'solving' the limit, I'd say the whole thing sums to 1. The iffy part here is that limt->0+t is equal to 0 (at least in most definitions).
by Flumble
Wed Nov 06, 2013 11:16 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1286: "Encryptic"
Replies: 102
Views: 31911

Re: 1286: "Encryptic"

I couldn't withhold myself from checking out the database - the excerpt on xkcd is indeed made up. :|

mishka wrote:Okay, since it's out now, my password for adobe is crayola.
No, I didn't use it elsewhere.
No, I didn't even use the same username as on xkcd.

Thanks, now we have to reverse-crack your username...
by Flumble
Sun Nov 03, 2013 1:57 pm UTC
Forum: Mathematics
Topic: Permutations and Combinations
Replies: 7
Views: 2205

Re: Permutations and Combinations

To add to that: in general, if two choices are independent, you get the total number of possibilities by multiplying those of the individual choices.
by Flumble
Thu Oct 24, 2013 10:10 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1281: "Minifigs"
Replies: 105
Views: 20087

Re: 1281: "Minifigs"

The UK's Daily Mail, a god-awful excuse for a paper filled with vitriol and spite, whose online incarnation regularly runs articles pretty much to troll the internet into providing pageviews, has run this comic as a news story, complete with their own uglier (and copyrighted to themselves) version ...
by Flumble
Mon Oct 21, 2013 10:37 pm UTC
Forum: Mathematics
Topic: Optimization Woes with Pizza
Replies: 22
Views: 5227

Re: Optimization Woes with Pizza

I'm curious as to how you could run a simulation to approximate solutions to this problem. Surely one could do better than applying plenty of random slices and randomly flood-fill the regions until there are n regions of τ/n area, but I can't see how. Maybe nature can help; something like multiple v...
by Flumble
Sun Oct 20, 2013 5:55 pm UTC
Forum: Mathematics
Topic: Optimization Woes with Pizza
Replies: 22
Views: 5227

Re: Optimization Woes with Pizza

Are we allowed to fold the pizza, and does this give us any saving in the total length of cuts? I like your style. :lol: However I think it's supposed to be a 2-dimensional optimisation problem. Supporting Qaanol's idea: circles have the least boundary-to-surface ratio, so shapes that resemble disk...
by Flumble
Fri Oct 18, 2013 10:13 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1279: "Reverse Identity Theft"
Replies: 144
Views: 39273

Re: 1279: "Reverse Identity Theft"

I always assumed my name was unique, since my last name is only used by a handful of people in a small region in the Netherlands and Germany. (so worldwide I presume it's limited to a hundred or so people) But some time ago I started receiving mail about the weekly work schedules of a restaurant not...
by Flumble
Thu Oct 17, 2013 3:01 pm UTC
Forum: Mathematics
Topic: n sided polygon, n < 3
Replies: 35
Views: 6532

Re: n sided polygon, n < 3

And when n=cheese the sum is 180cheese - 360. Sure, we can all string the relevant symbols together, but that doesn't necessarily imbue them with meaning. On the other hand, most definitions of polygons allow for a digon and some for a monogon. And that formula is said to hold for every polygon in ...
by Flumble
Wed Oct 16, 2013 9:48 am UTC
Forum: Mathematics
Topic: Substitution systems
Replies: 6
Views: 2545

Re: Substitution systems

With only 1 rule, you can only make recursive/repetitive patterns, no matter how large your alphabet is. Try recursive replacing some text in a document of yours. (or perhaps a lorem ipsum) If your search string matches anything, it'll replace it with the replacement string (duh) and it's done. Howe...
by Flumble
Sun Oct 13, 2013 1:08 am UTC
Forum: Mathematics
Topic: I want to compare the random numbers generated from many RNG
Replies: 12
Views: 3554

Re: I want to compare the random numbers generated from many

For an LFSR to have a maximal period (2 n -1) for the number of bits** stored (n), you must find an irreducible polynomial, that is, a polynomial that can't be described as a product of two other polynomials (both having at least degree 1, since you can always multiply by a constant). For example th...
by Flumble
Fri Oct 11, 2013 4:12 pm UTC
Forum: Mathematics
Topic: I want to compare the random numbers generated from many RNG
Replies: 12
Views: 3554

Re: I want to compare the random numbers generated from many

I tried substituting 2 for x and ended up with really bad numbers. Ah, no, that's not how those polynomials work. The Xs are not supposed to be subsituted for a number, but rather represent the state of a bit at a certain position. x 4 +x 3 +1 = 1 *x 4 + 1 *x 3 + 0 *x 2 + 0 *x 1 + 1 *x 0 can be rep...
by Flumble
Tue Oct 08, 2013 11:48 pm UTC
Forum: Mathematics
Topic: Product numeral system
Replies: 2
Views: 1253

Product numeral system

Consider a 'universal' numeral system (for positive integer approximation) using rods and dots. A group of n rods simply denotes a number n, while a dot denotes multiplication of the number on the left with the number on the right. 2 = || 4 = |||| or ||.|| 12 = ||.|||.|| or |||.||.|| or ||||.||| Why...
by Flumble
Sat Oct 05, 2013 4:21 pm UTC
Forum: Language/Linguistics
Topic: "Have" sex?
Replies: 18
Views: 7450

Re: "Have" sex?

Not really, because "have" means "eat" in those cases, same way you can have a sandwich. One does consume a marriage and eating out your partner isn't uncommon either... :roll: One "consummates" a marriage, unless one is a kaiju. I keep learning something every day on ...
by Flumble
Sat Oct 05, 2013 3:11 pm UTC
Forum: Language/Linguistics
Topic: "Have" sex?
Replies: 18
Views: 7450

Re: "Have" sex?

gmalivuk wrote:Not really, because "have" means "eat" in those cases, same way you can have a sandwich.

One does consume a marriage and eating out your partner isn't uncommon either... :roll:
by Flumble
Fri Oct 04, 2013 8:58 pm UTC
Forum: Language/Linguistics
Topic: "Have" sex?
Replies: 18
Views: 7450

Re: "Have" sex?

Even still that begs the question "Why do we say 'have sexual intercourse'"? The only phrases I can think of that work this way have an article, like "have a conversation" You have sugar, right? Not 'a sugar'. Intercourse is just an uncountable noun AFAIK. For all I know having ...
by Flumble
Thu Oct 03, 2013 8:53 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1272: "Shadowfacts"
Replies: 101
Views: 23052

Re: 1272: "Shadowfacts"

Come to think of it, even if a horse is always correct, you can't really describe it as a "correct horse". The word correct has a different meaning when used before the noun. A trainee vet should always make sure (s)he shoots the correct horse. If you want to make clear you're talking abo...
by Flumble
Wed Oct 02, 2013 8:15 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1272: "Shadowfacts"
Replies: 101
Views: 23052

Re: 1272: "Shadowfacts"

After a rough night a comic with simple humour is greatly welcomed. :)

rhomboidal wrote:After Mister Ed and ShadowFacts, talking horses aren't quite as magical as I imagined. (Though, apparently, ponies are to some people.)

I see what you did there.I just wanted to quote the joke
by Flumble
Tue Oct 01, 2013 8:16 pm UTC
Forum: Language/Linguistics
Topic: Spreek Nederlands en Praat Afrikaans (Dutch & Afrikaans)
Replies: 418
Views: 133530

Re: Spreek Nederlands en Praat Afrikaans (Dutch & Afrikaans)

It is time that Afrikaans and Dutch (which is Flemish these days) work together. The first steps could be a sign of good will by the Dutch to use some Afrikaans words that are more Dutch than some words in Dutch, by that I mean, words that in Dutch are nothing more than watered down Latin (French) ...
by Flumble
Tue Oct 01, 2013 4:21 pm UTC
Forum: What If?
Topic: What-If 0065: "Twitter Timeline Height"
Replies: 102
Views: 32157

Re: What-If 0065: "Twitter Timeline Height"

legalise hard drugs like opium and crocodile Sir, I'm going to have to ask you to put down that crocodile, and keep your hands where I can see them. Hahahah :P My bad, I assumed desomorphine has the nickname crocodile in English. By Doomsday logic, the entire first 50% of humanity can look at their...
by Flumble
Tue Oct 01, 2013 3:40 pm UTC
Forum: What If?
Topic: What-If 0065: "Twitter Timeline Height"
Replies: 102
Views: 32157

Re: What-If 0065: "Twitter Timeline Height"

ETA -- since I'm sure everyone's going to weigh in on the Doomsday thingie, I'll just suggest cheerfully that all we need to do to avoid early extinction is to taper off the world population. That way it'll take longer and longer to get to the last 5%. So, the closer we get to extinction, the longe...

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