Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#76 Re: Introductions » Genius stuck in France » 2007-06-28 08:29:16

I've been having some typing problems lately; you see, Saturday 23rd was "Saint John's", which, around here, is celebrated by a large bonfire, and a fireworks display, put on by whoever buys some fireworks. My friend got his hand opened up and burned because some complete idiot threw a rather large firecracker at him. As for me, I just got a second-degree burn on my thumb from the sparks of the fuse.

On a more positive note, I did manage to impress some people with my display, which I'll be able to put on again once I get to the US in, well, 6 more days.

#77 Re: Dark Discussions at Cafe Infinity » What shape is the universe? » 2007-06-28 08:16:54

If you say so. You could also look at the the distance and direction of all the planets, stars, etc., plot it onto a 3D chart, and see which area has the most movement away from it.

#78 Re: Dark Discussions at Cafe Infinity » What shape is the universe? » 2007-06-28 01:43:07

Neither do I.

Anyways, I was wondering whether there is any area of space that can be observed as the "center" of the universe; that is, the area which all other matter in the universe is moving away from?

#79 Re: Euler Avenue » Small numbers and measures » 2007-06-28 01:39:53

OK. So maybe I should find some way of making it possible for you to post here.

Anybody have any idea what the smallest distance knows is?

And the longest?

#80 Re: Dark Discussions at Cafe Infinity » Cyphers and Codes » 2007-06-27 08:22:53

I have posted links to two programs I created. Using the two of them together, you should be able to figure this one out.

Enter this into the "encrypted" section of the onetime pad program: ¡Ë­h·¶”¹Õ«­ÒY%’Ù? ~wD“â”Ü”¡N±°éá^{{[Nt-z,§ÆÁ€&ããŽñýü­–‰&%ä9)ôÑ
Enter this into the small text box of the program above: 1000010111011101101010100100001001010111010101101010111101

#81 Re: Dark Discussions at Cafe Infinity » What shape is the universe? » 2007-06-27 08:00:10

Puis-je demander ce que vous essayez, en vain, de dire? Peut-etre est-ce quelque chose d'absolument absurde, ou alors simplement incomprehensible?

I got the idea for the signature from my aunt, who is a lawyer.

#82 Re: Euler Avenue » Small numbers and measures » 2007-06-27 07:52:57

It seems that nobody is very interested in metric measures; the total lack of replies is a big clue...

I'll stop posting for a couple months here and see what pops up.

#83 Re: Guestbook » Heya EVERYONE REPLY! » 2007-06-27 07:49:57

I live in Err, France. Born in Portland, OR, USA, though. That makes me, like Chocó, about 20000 miles from my birthplace.

If you want you can try to find my house on Google Earth; last time I checked, my house was right under a small cloud...

#84 Re: Puzzles and Games » lightning's spelling Bee » 2007-06-27 07:00:58

12 Gen uh wait uh
13 Sigh ant east
14 Nan oh plate in
15 Key bow hard
16 Con packed this K

#86 Re: Puzzles and Games » lightning's spelling Bee » 2007-06-27 06:41:05

flusturd
Oregahmy

Tell me, quem ad modum et ubi did you find some of these?

#87 Re: Dark Discussions at Cafe Infinity » Cyphers and Codes » 2007-06-27 06:34:02

Yes, there are about 365.25 days in a year, thus the leap year every four years.

I seem to have a problem, partly for you (I should be able to give you the solution around mid-summer.

I wrote a program in VB that take a binary number and turns it into a seemingly random (but repeatable) string. Normally, I would be able to simply look at the VB code and find the algorithm I used, but I had to uninstall VB to make room on the drive. I was wondering whether any of you people could figure it out from the .EXE that I made of it before uninstalling VB. It's probably not possible, but hey!

I might post the algorithm once I get VB reinstalled (perhaps just the code I used).

#88 Re: Puzzles and Games » A code I made up » 2007-06-27 06:00:32

I tried a simple decryption system (similar to the one used in the program), and all I got was what seems to be a series of store names...

WIWOQESMNRYC
TLTVZAQEWIBA
RTRJREIQJZZC

#89 Re: Puzzles and Games » Primes » 2007-06-27 05:45:15

People, it would be very helpful if you would post only ONE number per post. I got a headache just scrolling to the bottom of the page.

#90 Re: Puzzles and Games » A code I made up » 2007-06-26 23:33:49

Think in British English; "Who did you nick a bollick off?"

If this isn't clear enough, sorry, I won't go any further into the details...

#91 Re: Puzzles and Games » A code I made up » 2007-06-26 23:31:56

This is the program that I used to encrypt the message posted above. The interface is pretty self-evident, so no trouble there.

#92 Re: Dark Discussions at Cafe Infinity » Cyphers and Codes » 2007-06-26 23:21:37

In any case, I have written a program with Visual Basic 5.0 to do onetime pad encryption (and decryption) automatically; you simply type the stuff into the appropriate text boxes, press the right buttons, and it (usually) gives you what you want.

I might post a link to it somewhere around the forum.

#93 Re: Puzzles and Games » Primes » 2007-06-26 23:14:37

It was said already: Use multiple columns!!!!!!!!!! The page is ten miles long now!

#94 Re: Puzzles and Games » A code I made up » 2007-06-26 23:10:02

MathsIsFun wrote:
rida wrote:

WIWOQESMNRYC TLTVZAQEWIBA

What do you mean "code" ... I know him!

Very funny. Actually, there are some names that sound a lot like that...
My friend's favorite Russian "name" is "Hoodja Nika Volikov". Say it fast, and you'll see what it means (it's a question).

#95 Re: Puzzles and Games » What's going on? Crazy sequence » 2007-06-26 23:05:36

Like Ricky said, say the numbers out loud...

one
one one
two ones
one two, one one...

As for the continuations posted, it looks like they're all right.

#96 Re: Puzzles and Games » A code I made up » 2007-06-26 02:44:53

Encrypted:÷÷±¿'x8<€ÓL8Òþhb

Key:´ˆ”JMÅÂϵjÜÉ_õÞ

If you get this one, well, you'll know what I say!

#97 Re: Puzzles and Games » A code I made up » 2007-06-26 02:34:42

Is the key there? Is this a monoalphabetic substitution cypher or a polyalphabetic one? Or is it a transposition cypher?

Answer all three (in order), and i should be able to break it.

#98 Puzzles and Games » What's going on? Crazy sequence » 2007-06-26 02:32:13

Laterally Speaking
Replies: 8

Try to figure out this sequence, and post the continuation of it:

1
11
21
1211
111221
312211
13112221
1113213211
31131211131221
13211311123113112211
11131221133112132113212221

#99 Re: Puzzles and Games » lightning's spelling Bee » 2007-06-26 02:24:28

trebyushey

Try figuring that one out.

(Note: it may help to speak French, or know Medieval history)

#100 Re: Help Me ! » Formula for Discount Scheme » 2007-06-26 02:05:21

Well, as far as I can tell (by experience), the airlines' system is not really disclosed. I'll try looking into this (I'll check the prices on different dates to the same place), but it could also be based on the amount of (predicted) traffic the day of the flight.

Of course, there are other industries that use similar schemes, but the airlines are a good example.

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