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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#1401 Re: Dark Discussions at Cafe Infinity » Wink Murder » 2005-07-02 12:59:29

I think more people need to play...

I mean, after two killings, it was kinda obvious.

Also, the reason why it took so long - I tried to kill stewie first, but alas, he gave a fake address, so I had to choose someone else. Then I got MathsIsFun's address and sent death messages three or four times...and I waited around 4 days for him to post his message. Then I realised something was wrong, so I checked the email address and I think Rora typed the wrong address!

#1402 Re: Introductions » A lovely note » 2005-07-01 19:56:23

And you spell who's like this: whose.

#1403 Re: Dark Discussions at Cafe Infinity » Wink Murder » 2005-07-01 19:53:01

I think stewie and I were the only people left to guess...apart from Zach, but he wouldn't tell. I haven't seen Kiana baby1 since this started so I'm guessing she's not playing.

#1404 Re: Introductions » hi » 2005-06-30 20:46:20

And Zach's only got 41 to go!

#1405 Re: Puzzles and Games » Magic Squares » 2005-06-30 20:35:25

With Rod's magic square above (I see that it's gone missing) any 2x2 group of numbers in a quare that you pick also adds up to 34.

Here is a 5x5 magic square:

17   14   6    3    25
8    5    22   19   11  
24   16   13   10    2   
15   7    4    21   18  
1    23   20   12    9

It is symmetrical around its centre square, which means if you pick any two numbers which are opposite, they will add up to twice the centre square.

Also, if you tiled a floor with the above magic square, you could select any 5x5 grid and it would still be magic.

#1406 Re: Introductions » hi » 2005-06-30 20:26:23

everyday-birthday-beanstalk_large.jpg

Here's some balloons...now, no one bring a pin near here...

#1407 Re: Help Me ! » Any Guesses????? » 2005-06-30 20:09:12

Does 10² + 10² = 20² though?

10² + 10² = 20²       is the same as      100 + 100 = 400      which doesn't work out

10 square metres + 10 square metres = 20 square metres       but
10² + 10² = (14.142)²

10² + 10² = 200            so
10² + 10² = (√200)²
10² + 10² = (14.142)²           to three decimal places

So the length of the diagonal is actually 14.142 metres... smile

#1409 Re: Help Me ! » Take the challenge..... » 2005-06-30 18:20:41

1 degree Fahrenheit = 255.927778 Kelvin
1 Kelvin = -457.87 degrees Fahrenheit

#1410 Re: Dark Discussions at Cafe Infinity » Wink Murder » 2005-06-30 17:49:36

Zach wrote:

But, if it were me, wouldn't Stewie be dead by now. big_smile

Yeah, but didn't Stewie say that he gave a fake email address earlier on?

#1412 Re: Maths Is Fun - Suggestions and Comments » 'New Posts' » 2005-06-29 19:25:54

That's right...and the flute...and I'm trying to learn to play the clarinet *odd squeaking noise*

#1413 Re: Puzzles and Games » The Evil King » 2005-06-29 18:42:58

I've got no idea at the moment, but don't tell us the answer yet, please Rora!

#1414 Re: Puzzles and Games » Roman Numeral Puzzle ;) » 2005-06-28 19:08:54

I think I know this one...but somebody can remove it if I get the answer...

The man gets the axe, cuts the table in half, two halves make a whole, so he jumps through and escapes!

But in my version of the joke, he doesn't have an axe. Instead, firstly he bangs his head on the wall to make it 'sore' and then saws the table in half.

#1415 Re: Introductions » hi » 2005-06-28 14:28:22

MathsIsFun wrote:

OK, let's have a party ...  how?

What would make a party? Us all on at once? Or some nice software upgrade, or some games?

Suggestions welcome !

We need some decorations around the page...balloons, streamers! tongue

And a cake!

Oh yeah, and who's bringing the food?

P.S. stewie, I found a picture of Mr Lee.

darknostrileyes.jpg

Lame, I know.

#1417 Re: Puzzles and Games » Roman Numeral Puzzle ;) » 2005-06-28 14:05:04

YES!

Well, now, I suppose it's two to one, stewie. big_smile

#1418 Re: Guestbook » math » 2005-06-26 20:44:08

Well, in the USA they say math, and in the UK and Australia they say maths. So yes, that is correct, I suppose.

Math = maths

#1419 Re: Puzzles and Games » What should be the question? » 2005-06-26 13:09:35

1 2  3  4
O O O O
1 O O  4
   2  3

1  2 3  4
O O O O
O O  3 4
1  2

Or something like these, with one bendy row and one straight.

#1420 Re: Introductions » hi » 2005-06-24 21:13:29

4.3 posts per day compared to your 10!

And I see you're almost up to 1000 posts!

We need another party!

#1421 Re: Help Me ! » Making capacity fun » 2005-06-24 20:59:14

Once I remember the teacher brought her car along to school and we tried to fit the whole class in - there were about 25 of us, I think. And there were people in the boot too!

#1423 Re: Introductions » hi » 2005-06-24 20:54:39

Not even a month yet, though!

#1424 Re: Introductions » hi » 2005-06-24 19:13:05

I am? Me ? Well known? *shrugs*

#1425 Maths Is Fun - Suggestions and Comments » 'New Posts' » 2005-06-24 19:09:50

I'm not really sure if this is a good suggestion or not, or if there is a way of fixing it, but anyway, I'll have a go...

When I turn up to this forum, blue boxes appear next to discussions with new posts, threads, whatever. Then if I leave the window open for a while, or log out of the forum all those boxes disappear even if I haven't read them yet.

Could the boxes possibly stay until you have read the post? (This is probably a really stupid question, but I'm not an expert on forums...) I know of another forum where 'new' posts stay new until you have read them, but I think you must have cookies enabled in your browser for that.

Does anyone feel the same way? Opinions, people...?

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