Search found 21 matches

by poizan42
Mon Nov 08, 2010 7:40 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0816: "Applied Math"
Replies: 88
Views: 28536

Re: 0816: Applied Math

SocialSceneRepairman wrote:Of course, hasn't it been proven that such a proof is impossible?

So tell me, what would you actually use to make such a proof?
by poizan42
Mon Feb 25, 2008 8:28 pm UTC
Forum: Mathematics
Topic: Math Software
Replies: 143
Views: 169315

Re: Can't find good graph drawing software

Macbi wrote:I use a good one, simply called Graph. I can't find the page for it though, for some reason my computer will only show me select bits of the Internet today.

Were you thinking about this? http://www.padowan.dk/graph/
by poizan42
Wed Feb 06, 2008 8:32 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0380: "Emoticon"
Replies: 164
Views: 49611

Re: "Emoticon" discussion



If you are reading this, you probably doesn't have a font that renders the eye of the basilisk correctly (or are immortal or immune or something)
by poizan42
Sat Dec 01, 2007 11:03 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0351: "Trolling"
Replies: 179
Views: 37466

Re: "Trolling Discussion"

keozen wrote:Reminds me of this http://xkcd.com/comics/201

Don't you mean http://xkcd.com/201 ?
I don't see any similarities though :/
by poizan42
Sun May 27, 2007 3:03 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 0221: "Random Number"
Replies: 167
Views: 26397

And here's a C++ "joke" I made in Chemistry today: int so_fat=100 int yo_mama(int &x) { x++; return yo_mama(x); } int main() { yo_mama(so_fat); return 1; } Double the nerd-points for having a carbon copy of that next to various appli...
by poizan42
Sat May 12, 2007 7:29 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

i think (4!-4+.4)/.4 is better... That feels more like cheating than phi(4), definitely. which part of it feels more like cheating than phi(4)? The part about the hidden zero? The part about doing things relying on base 10? phi(4) is not relying on any specific representation of the number - nor is...
by poizan42
Thu May 03, 2007 8:29 am UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

Because i can... and i don't have anything better to do :) 107 = Γ(Γ(4)) - 4!/√(4) - φ(φ(4)) 108 = 4!*4 + 4!/sqrt(4) 109 = Γ(Γ(4)) - 4!/√(4) + φ(φ(4)) 110 = Γ(Γ(4)) - Γ(4) - √(4) - √(4) 111 = Γ(Γ(4)) - 4 - 4 - &...
by poizan42
Thu May 03, 2007 4:50 am UTC
Forum: Mathematics
Topic: The number i
Replies: 57
Views: 18314

Re: The number i

(I personally don't believe that such a number can exist) Depends on what you mean by "number" and "exist". Clearly no real number exists which is the squareroot of -1. But i exists in the sense that we can define it as beeing the (principial) squareroot of -1 without any incons...
by poizan42
Wed May 02, 2007 8:14 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

Getting small numbers

I just thought it was fun to find different ways to get to the numbers between 1 and 10 using a different number of fours (and very useful for the four fours problem ;)) 1 with 1 four: φ(φ(4)) 1 with 2 fours: 4/4 1 with 3 fours: 4 - √(4) - φ(φ(4)) or just φ(φ(4)) ...
by poizan42
Wed May 02, 2007 6:17 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

89 = Γ(4)!/(4+4) - φ(φ(4)) 90 = √(4)^Γ(4) + 4! + √(4) 91 = Γ(4)!/(4+4) + φ(φ(4)) 92 = Γ(4)!/(4+4) + √(4) 93 = 4!*4 - √(4) - φ(φ(4)) 94 = 4!*4 - 4 + √(4) 95 = 4!*4 - √(4) + φ(φ(4)) 96 = 4!*4 + 4 - 4 97 = 4...
by poizan42
Wed May 02, 2007 5:52 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

Haha, my bad. I explained the .4th root thing a couple posts ago (I think it's on the first page). oic. By why not use 4^(1/.4) ? I think it's more clear that you are only using fours that way. 85 = floor((4^4*√(4))/Γ(4)) 86 = Γ(4)!/(4+4) - 4 87 = √(4)^Γ(4) + 4! - φ(...
by poizan42
Wed May 02, 2007 2:32 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

mattmacf wrote:82 = 4^(5/2) / .4 + sqrt(4)

1. too slow!
2. you aren't allowed to do 4^(5/2)
3. you lose!
by poizan42
Wed May 02, 2007 2:16 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

hmm no one said the successor function succ(x) (or S(x)) wasn't allowed :/
But well... that's not very fun :)

82 = sqrt(4)^(gamma(4))+4!-gamma(4)
by poizan42
Wed May 02, 2007 1:46 pm UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

I thought φ was only defined for integer inputs? I think this is illegal. You could do floor(sqrt(4)), but that's really ugly. Elsewhere you have φ(φ(4)), which is better. What?? Since when wasn't sqrt(4) = 2 an integer?? Edit: Also, I know I'm being very annoying here, but 60 = 44 +...
by poizan42
Wed May 02, 2007 8:41 am UTC
Forum: Mathematics
Topic: The four fours problem
Replies: 78
Views: 25756

52: 4! + 4! + √(4) + √(4) 53: 4! + 4! + 4 + φ(√(4)) 54: 4! + 4! + 4 + √(4) 55: 4! + 4! + Γ(4) + φ(√(4)) 56: 4! + 4! + 4 + 4 57: 4! + 4! + 4/(.4...) ... meaning repeating of 4 (that is 4/0.444... = 4/(4/9) = 9) 58: 4! + 4! + Γ(4) + 4 59: (Γ(4)! /...
by poizan42
Wed May 02, 2007 6:43 am UTC
Forum: Mathematics
Topic: How many digits of Pi do you know?
Replies: 445
Views: 108362

I know ALL the digits of pi: 10 in base pi :wink:
by poizan42
Fri Apr 13, 2007 9:23 pm UTC
Forum: General
Topic: Age
Replies: 958
Views: 215298

18 and my birthday is 17th of Septemper.

Here in Denmark it's legal to buy beverage in kiosk and at the supermarket when you are 16 - but most of the time no one asks for id. You have to be 18 to buy beverage at at resturents, pubs, discos and places like that though.
by poizan42
Fri Apr 13, 2007 7:51 pm UTC
Forum: General
Topic: I'm bleeding to death
Replies: 342
Views: 51067

Hmm. Interresting how long a thread one post about someone cutting himself can be... I also don't have a signature. And this is not a sentence. Oooooh.. k? How is that not a sentence? I mean, technically, words that are grouped together in a way that makes sense, would by definition be a sentence, ...
by poizan42
Fri Apr 13, 2007 3:13 pm UTC
Forum: General
Topic: I'm bleeding to death
Replies: 342
Views: 51067

Hmm. Interresting how long a thread one post about someone cutting himself can be...

Roffle wrote:I also don't have a signature.

And this is not a sentence.
by poizan42
Wed Mar 21, 2007 2:53 pm UTC
Forum: Forum Games
Topic: 3 letters in a word
Replies: 1802
Views: 284812

ex-directory (if that counts)

lru
by poizan42
Sat Mar 17, 2007 2:59 pm UTC
Forum: General
Topic: INTRODUCTIONS THREAD
Replies: 3985
Views: 695399

18/M/Denmark I have been lurking here for a while so i think it's about time to introduce myself. I have always been fascinated by natural science and mathematics and computer science and most things related to computers ;) (not so much of a gamer though) I'm currently at the second year of my HTX e...

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