Search found 79 matches

by LakatosIstvan
Wed May 25, 2011 6:58 am UTC
Forum: General
Topic: Towel Day May 25th!
Replies: 138
Views: 23466

It's Towel Day!

It's the International Towel Day, bitcheeez! Get your geek vibe on and show us what Towel Day is all about!
by LakatosIstvan
Sun Apr 24, 2011 6:30 pm UTC
Forum: Computer Science
Topic: Propositional Logic
Replies: 10
Views: 3645

Re: Propositional Logic

Well, with the exact text in your post, it would be false... I wouldn't take "The entire building was destroyed by fire" to necessarily imply that any part of the building was on fire; for instance, a tall tower next to it caught on fire, collapsed, and crushed the entire building next to...
by LakatosIstvan
Sun Apr 24, 2011 9:32 am UTC
Forum: Computer Science
Topic: Ultra-parallel computer
Replies: 12
Views: 2741

Re: Ultra-parallel computer

How can parallelization be even better? I was thinking maybe there could be some sort of future-processing technique. Imagine a program with a conditional statement that takes a few cycles to evaluate. While it is being evaluated by one processor, two other processors can start working on the next ...
by LakatosIstvan
Sun Apr 24, 2011 9:27 am UTC
Forum: Computer Science
Topic: Propositional Logic
Replies: 10
Views: 3645

Re: Propositional Logic

You should also teach him when to use this knowledge. He needs to know when to adhere to the social conventions and when to be a smartarse :P I don't know how many times I almost failed English exams because I used REAL logic. There once was a listening exercise in which we were read a news article ...
by LakatosIstvan
Thu Apr 21, 2011 11:44 pm UTC
Forum: Coding
Topic: Is Common Lisp inherently slow or is it just my environment?
Replies: 12
Views: 3851

Re: Is Common Lisp inherently slow or is it just my environm

are there any good common-lisp implementations that don't require me to install linux to run them? Also, does common-lisp have automatic garbage collection? I keep getting errors saying there is no more room for lisp objects. If not, what do I call to have the garbage collection remove an object? F...
by LakatosIstvan
Thu Apr 21, 2011 11:04 pm UTC
Forum: Coding
Topic: Is Common Lisp inherently slow or is it just my environment?
Replies: 12
Views: 3851

Re: Is Common Lisp inherently slow or is it just my environm

IIRC, clisp isn't the fastest of CL compilers, but it's okay. Which common lisp implementation should I use then? I am on a windows box. IMHO the best free and fast CL implementation would be SBCL. The problem is that it doesn't really support Windows machines :( My advice to you is to try out linu...
by LakatosIstvan
Thu Apr 21, 2011 10:50 pm UTC
Forum: Computer Science
Topic: How do I start learning about Comp. Science and Programming?
Replies: 23
Views: 4013

Re: How do I start learning about Comp. Science and Programm

Stop! Programming isn't just about learning a few languages and using them to write some programs. Do yourself some good and start reading Structure and Interpretation of Computer Programs. Not only will you learn things that others had to learn in ages, but you will also learn to program in the kic...
by LakatosIstvan
Fri Jan 07, 2011 8:40 am UTC
Forum: Mathematics
Topic: Gradient in non-continuous point.
Replies: 2
Views: 874

Gradient in non-continuous point.

So there's this problem I'm working on, in which I basically showed that an f:R^2 -> R function is not continuous in the (0,0) point. The second part of the program then asks me to create the gradient of the function on R\{(0,0)}, and the next part of the problem is to tell weather the gradient exis...
by LakatosIstvan
Sat Nov 27, 2010 10:03 pm UTC
Forum: Logic Puzzles
Topic: Yep, another Cypher :P
Replies: 2
Views: 1261

Re: Yep, another Cypher :P

I accept your challenge :P
by LakatosIstvan
Wed Nov 24, 2010 10:50 pm UTC
Forum: Logic Puzzles
Topic: Yet Another Cipher.
Replies: 8
Views: 3121

Re: Yet Another Cipher.

I'm confused as well O_O.
by LakatosIstvan
Tue Nov 23, 2010 10:11 pm UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Which, as I recall, is exactly how ENIGMA was cracked in the first place. At least, that's what the History Channel would have me believe... Nah, ENIGMA was much-much-much more harder to crack. Just so you know the Poles played a vital role in the process. Enigma's weakness was in it's key distribu...
by LakatosIstvan
Tue Nov 23, 2010 9:51 pm UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Well, to be honest, it wasn't that hard. Ciphers that have multiple ways of encoding a word and save important decryption data in the cipher-text are inherently weak. Sure, frequency analysis is a little harder because of the extra number/letter/symbols/etc., all it takes is one leaked word and ever...
by LakatosIstvan
Tue Nov 23, 2010 8:50 pm UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Spoiler:
Get rid of it then :P And put the third number to the end of each "word". It's nastier that way.
by LakatosIstvan
Tue Nov 23, 2010 5:15 pm UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Spoiler:
The first number is redundant if you are planning on writing each encrypted word separately. It isn't if you write your message as one huge block. Otherwise you won't know when your next words special number is going to be.

And yeah, the second number is pretty useless.
by LakatosIstvan
Tue Nov 23, 2010 10:20 am UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Yay! I found the solution :P Read my previous post to see where I'm continuing from. So we know that the first number is the the number of letters our secret word has. I'll get to the other two numbers in a jippie. Let's decipher our first example : 4 3 8 3 7 2 7 3 2 1 4 So we know that our ...
by LakatosIstvan
Sun Nov 21, 2010 7:27 pm UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Hm... I think I might have stumbled upon something. Another tip: If the word is x letters long, the code's length is f(x)=2x+3. And there's a reason for. Basically what this suggests is that each letter is substituted by it's two-number counterpart, and that there are 3 other num...
by LakatosIstvan
Fri Nov 19, 2010 12:52 pm UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Meh, I have other things to do. I'll just take a wild leap of faith and say it's Abracadabra.
by LakatosIstvan
Fri Nov 19, 2010 9:40 am UTC
Forum: Logic Puzzles
Topic: Code testing
Replies: 28
Views: 3552

Re: Code testing

Well, technically it's a cipher system :P Code systems are about replacing certain/all words with code-words. Just thought you should know.

Anyways, I'd be glad to take a hint :D Would you PM me, please?

edit: Scratch that. I want to obliterate this by myself! :P
by LakatosIstvan
Wed Sep 01, 2010 9:41 am UTC
Forum: Coding
Topic: Haskell as a first language.
Replies: 10
Views: 4340

Haskell as a first language.

There's a young friend of mine, really intelligent chap with a thing for science and math and stuff, and who came up to me yesterday and asked me about programming in general, computer science related topics, him being interested on learning how to program on his own, and asked me what I think a goo...
by LakatosIstvan
Mon Jun 28, 2010 10:58 am UTC
Forum: Computer Science
Topic: Cryptology on the streets.
Replies: 13
Views: 2712

Re: Cryptology on the streets.

Right now I'm making a map of the small hiding places of the city to where I can direct people :P
I'm planning on increasing the difficulty of the cipher each subsequent location. But nothing unbreakable.
by LakatosIstvan
Wed Jun 16, 2010 8:35 am UTC
Forum: Computer Science
Topic: Cryptology on the streets.
Replies: 13
Views: 2712

Re: Cryptology on the streets.

Make sure then to at least leave the key near the ciphertext :P What's the fun in that? I'll just have a heading in plain text saying that "This message is encrypted with a very simple cipher, decode to find the location of the next clue." At least I won't leave them completely in the dar...
by LakatosIstvan
Wed Jun 16, 2010 4:33 am UTC
Forum: Computer Science
Topic: Cryptology on the streets.
Replies: 13
Views: 2712

Re: Cryptology on the streets.

Make sure then to at least leave the key near the ciphertext :P
by LakatosIstvan
Tue Jun 15, 2010 11:02 am UTC
Forum: Computer Science
Topic: Cryptology on the streets.
Replies: 13
Views: 2712

Cryptology on the streets.

Has anyone ever heard or seen about encrypted messages being left around on the streets in plain sight, just waiting to be decrypted, starting a potential city-wide discussion in ciphertext? Call me a hopeless romantic, but I think it would be a lot of fun , and a great way to find like-minded peopl...
by LakatosIstvan
Sat Jun 12, 2010 6:55 pm UTC
Forum: Fit Club
Topic: Help with loosing weight
Replies: 12
Views: 2990

Help with loosing weight

First of all, I would like to apologize for only using the metric system when I write :P With school being over and the summer coming I decided that I will finally create a plan for myself for the summer and finally loose some weight, Currently I am 180cm high and weigh around 95 kg. My plan is to g...
by LakatosIstvan
Mon Jun 07, 2010 3:22 pm UTC
Forum: Mathematics
Topic: How to learn Cryptography/analysis
Replies: 4
Views: 1421

Re: How to learn Cryptography/analysis

Are there any free online resources? Don't get me wrong, I'm not that cheap to not buy those books, it's just that momentarily to get the books to where I live the postal service would cost me as much as the book itself would :P Until I get back to more accessible places though, I would still love t...
by LakatosIstvan
Tue Jun 01, 2010 12:09 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

Now that's a funny comic :P At a certain moment a pair of square brackets should come in and say "Guys ,let's get together as a whole and leave our cares floating behind. I heard Euler is throwing a party at the Aleph-Null-Drink bar."
by LakatosIstvan
Mon May 31, 2010 5:40 am UTC
Forum: Language/Linguistics
Topic: Body Language to text translator
Replies: 5
Views: 2457

Re: Body Language to text translator

No, he's talking about body language. Like "I just had sex with your wife" -> Roll your eyes to the left 30 degrees, and spread your feet 32.5 cm apart. Smile like the Mona Lisa.

Get it? :P
by LakatosIstvan
Mon May 31, 2010 3:58 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0747: "Geeks and Nerds"
Replies: 130
Views: 36918

Re: "Geeks and Nerds" Discussion

I just came to the same conclusion. RANDALL, get out of my head!

HI GLASNT!
by LakatosIstvan
Sun May 30, 2010 8:00 pm UTC
Forum: General
Topic: xkcd Code (Split from Post Your Geek Code)
Replies: 105
Views: 11631

Re: xkcd Code (Split from Post Your Geek Code)

First of all, RebeccaRGB, the meaning of life is pretty straightforward: 42.

I don't know. I think we should keep the phinary number system thing, and the dvorak ciphering. That's so geeky it just might work. (Also potato-seconds)
by LakatosIstvan
Sun May 30, 2010 12:22 pm UTC
Forum: Mathematics
Topic: How to learn Cryptography/analysis
Replies: 4
Views: 1421

How to learn Cryptography/analysis

Reading through the forum I saw a number of posts relating to Cryptography, encryption, etc., and saw a number of people who are pretty good at it. My question is, how did you do it? I have always been fascinated b cryptic messages, breaking codes, puzzles, that sort of things, and I always wanted t...
by LakatosIstvan
Sun May 30, 2010 10:22 am UTC
Forum: General
Topic: Dvorak
Replies: 69
Views: 21625

Learning DVORAK

I understand dvorak is a very popular keyboard layout here in the xkcd forums, which is why I'm turning to you guys to ask for your help. First of all, I understand that dvorak is much more efficient than qwerty? But how efficient is it really? Coupled with touch typing, how many wpm can one achieve...
by LakatosIstvan
Sat May 29, 2010 7:38 pm UTC
Forum: Coding
Topic: Python help
Replies: 16
Views: 3005

Re: Python help

I think your problem lies within the count variable. It's value gets changed a lot... I'm just speculating, because I don't really know how your algorithm works, and I don't have time right now to tinker things out. Maybe tomorrow.
by LakatosIstvan
Sat May 29, 2010 7:06 pm UTC
Forum: Mathematics
Topic: help me with my date
Replies: 14
Views: 3432

Re: help me with my date

This has got to be the cutest and nerdiest thing I have ever seen :D Considering that although the girl is a bit lazy with her cryptography, she really is into this stuff. You should leave her a similar message :P Only with a moire original and tougher encryption :P
by LakatosIstvan
Sat May 29, 2010 3:04 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

I hear all kinds of stupid facts about the human body, like the we-only-use-10%-of-our-brain myth As a biology major, I do often wish a swift and violent death to the peddlers of this absurd notion. I wonder where it came from. Presumably it either came from an innocent misunderstanding like the ar...
by LakatosIstvan
Thu May 27, 2010 8:26 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

Meh. If we're talking about constants, then I'd vote for the golden ratio :P Nothing beats a number which mixes math with art to the deepest levels :P In other words a number that popular culture has latched onto and abused into a pseudo-scientific load of crap. Any time someone tells you that the ...
by LakatosIstvan
Thu May 27, 2010 7:30 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

Meh. If we're talking about constants, then I'd vote for the golden ratio :P Nothing beats a number which mixes math with art to the deepest levels :P
by LakatosIstvan
Thu May 27, 2010 5:03 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

gmalivuk wrote:And given how e works with differentiation, it actually makes quite a lot of sense that the integral would prefer it over other numbers.


e isn't at all special when it comes to differentiation :P The function e to the power of x , however, is. e gets zeroed out like the rest of the constants :P
by LakatosIstvan
Thu May 27, 2010 12:11 pm UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

Lol, I get thaty part :)) I just don't get the e and pi part. Why would the integration sign say that?
by LakatosIstvan
Thu May 27, 2010 4:58 am UTC
Forum: Mathematics
Topic: Wish I had seen/understood this comic sooner...
Replies: 36
Views: 4766

Re: Wish I had seen/understood this comic sooner...

I know I should get this, but I don't :P Care to explain?
by LakatosIstvan
Fri Mar 19, 2010 5:41 am UTC
Forum: The Help Desk
Topic: Debug - Access Desnied?
Replies: 1
Views: 480

Debug - Access Desnied?

Yeah, so I recently discovered the little Windows program called "Debug", which comes installed with I think every release right now. I'm running a Windows XP SP3, and for some reason whenever I try to use debug to open up a file on my hard drive/floppy/flash, it says that I have access de...

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