Search found 13 matches

by benmcm
Fri Jul 27, 2007 8:38 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0295: "DNE"
Replies: 145
Views: 45537

First thing I thought when I saw DNE was trying to figure out something along the lines of DNS. This brings back good memories for me, in college me and my friends used to write up completely bogus equations on the white board containing pretty much as many functions and greek letters that we knew. ...
by benmcm
Fri Mar 16, 2007 10:14 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0236: "Collecting Double-Takes"
Replies: 159
Views: 64854

I work at a super market (grocery store) at the moment to save money for University. Trust me, nothing phases me about what people buy. You get enough random things when they're not trying to confuse you. And after you've explained to someone what "Buy one get one free" means, I think you'...
by benmcm
Wed Jan 24, 2007 11:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0214: "The Problem with Wikipedia"
Replies: 139
Views: 60231

Only the other day I came across this program called pathway for mac that tracks your progress through wikipedia and displays this in a graphical network.
by benmcm
Mon Dec 04, 2006 9:45 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0192: "Working for Google"
Replies: 65
Views: 25511

no-genius wrote:Well, actually the internet is mostly porn and banner ads.


Actually I saw on 
slashdot that the internet is only 1% porn.
by benmcm
Wed Nov 22, 2006 12:43 am UTC
Forum: Logic Puzzles
Topic: Some probability?
Replies: 26
Views: 6357

whether all pieces are random depends really on how good your torrent tracker is. Some can set priorities for certain pieces as said, and can also try to complete files before starting new ones.

For the sake of the question though, I think you're right to assume complete randomness.
by benmcm
Sun Nov 19, 2006 12:28 am UTC
Forum: Logic Puzzles
Topic: number of different sudokus
Replies: 3
Views: 2707

Yea sorry, meant to make that more clear. If it's the same as another sudoku, just with a row/column/ set of row/column changed than i don't count it as unique I first thought about this when solving them, I'd always try to leave the middle square till last (don't ask), but I realised that the squar...
by benmcm
Sat Nov 18, 2006 9:56 pm UTC
Forum: Logic Puzzles
Topic: number of different sudokus
Replies: 3
Views: 2707

number of different sudokus

I expect you all know what a sudoku is, if you don't look her: http://en.wikipedia.org/wiki/Sudoku I was wondering how many unique sudokus there actually are. Not as easy as first thought as I realised that: {{a1, a2, a3, a4, a5, a6, a7, a8, a9}   {b1, n, n, n, n, n, n, n, n}   {c1, n, n, n, n, n,...
by benmcm
Wed Nov 15, 2006 8:40 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0184: "Matrix Transformation"
Replies: 50
Views: 22291

Have to say it took me a few moments to get it (it's been a while since I've done any maths), but managed to without looking here.

I just wish that I'd seen this about a year earlier, I could of had great fun in my maths lessons.
by benmcm
Tue Nov 07, 2006 9:42 am UTC
Forum: Logic Puzzles
Topic: Deal or no deal
Replies: 80
Views: 17724

Thanks Phlip, that explained to me where my thinking was wrong. Incidently I know in the UK version that the offer isn't just the average of the boxes. Plus when thinking about whether to deal or not you have to consider what baxes are left. Because as has already been said, they're not distributed ...
by benmcm
Mon Nov 06, 2006 9:51 pm UTC
Forum: Logic Puzzles
Topic: Deal or no deal
Replies: 80
Views: 17724

I can't understand why I watch it either lol. It wasnt meant to be a problem, more just trying to understand why it isn't the same as the monty hall problem. because ultimatly in the situation I've descibed 20 boxes have been opened showing not £250,000, 1 is left with not £250,000 and one with £...
by benmcm
Mon Nov 06, 2006 5:20 pm UTC
Forum: Logic Puzzles
Topic: Deal or no deal
Replies: 80
Views: 17724

Deal or no deal

This isn't meant to be a riddle, I dont know the answer, more something I was thinking of and was hoping that the far more intelligent people here could help me. If you don't know the game (it's an English TV game show): You start of with 22 identical sealed boxes containing values from 1p to £250,...
by benmcm
Wed Oct 11, 2006 7:52 pm UTC
Forum: Logic Puzzles
Topic: Sex problem
Replies: 35
Views: 15985

I would say that the probability of the other child being a girl is 50%, just because you know that one child is a boy doesn't change anything. The probability of any child being a girl is 50% (actually I believe it's closer to 48% but I digress) Saying that it's 2/3 because one is a boy is like say...
by benmcm
Wed Oct 11, 2006 4:36 pm UTC
Forum: Logic Puzzles
Topic: So many hats!
Replies: 1
Views: 3590

The back person can't see 2 purple hats else he'd know that he has a red one. Therefore at least one of you has a red hat (maybe 1 red & 1 purple, maybe 2 reds). The next person knows this, as he doesn't say anything he can't see a purplu hat, else he'd know that he must have the red hat. There...

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