Math Is Fun Forum

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

You are not logged in.

#26 Re: Jokes » definations related to mathematics:- » 2009-09-28 11:56:31

soha wrote:

"A mathematician is a device for turning coffee into theorems" (P. Erdos)
Addendum: American coffee is good for lemmas.

Heard a similar one saying that programmers are devices for turning caffeine into code. Good lines!

#27 Re: Maths Is Fun - Suggestions and Comments » Function Transformation » 2009-09-24 13:49:30

MathsIsFun wrote:

Why? Well imagine you are going to inherit a fortune when your age=25. If you change that to (age+4) = 25 then you would get it when you are 21. Adding 4 made it happen earlier.

Sorry, just being picky...
But all in all, it's a very fun page! It has great explanations and lots of examples. Great job!

#28 Re: Maths Is Fun - Suggestions and Comments » Circle Equations » 2009-09-03 11:54:05

Just quickly looking through it, it really looks great!

#29 Re: Maths Is Fun - Suggestions and Comments » Dividing by Zero » 2009-09-01 14:53:02

MathsIsFun wrote:

But it can't be zero, or you have turned 12 chocolates into nothing, which would be a waste of good chocolate smile

No, a mystery guest named Mr. Bubbles walks in and eats them all. No waste! smile

#30 Re: Maths Is Fun - Suggestions and Comments » "Math is Fun" in Spanish? » 2009-09-01 13:58:24

I found it funny when I saw:
Four in a ray

It tries to win!

#31 Re: Help Me ! » compound inequality » 2009-09-01 11:20:49

Not sure what you mean by the last sentence, can you clarify?

#32 Re: This is Cool » Another..nother number trap. » 2009-07-24 03:18:40

In Spanish:
diez->quatro->seis->quatro->seis...
It keeps repeating quatro and seis.

#33 Re: Dark Discussions at Cafe Infinity » How would you move Mnt. Fuji? » 2009-07-03 15:06:11

Is Mt. Fuji coded in Python? Then moving it may cause errors...

#34 Re: This is Cool » Domestos Kills Germs! » 2009-06-14 05:30:09

Well then, sorry, RickIsAnIdiot, no offense meant then. smile
I probably should have written that up in LaTeX, I'll try sometime.

#35 Re: This is Cool » Domestos Kills Germs! » 2009-06-14 04:04:57

Ack, another ARB sock puppet.
(At least, I think so...)

#36 Re: Maths Is Fun - Suggestions and Comments » Congrats Rod! » 2009-06-11 11:30:16

Yaaaaaaaaaaaay for Rod!
We all need a cheer...
1! 2! 3!
Yahoo!

#37 Re: Help Me ! » Please help me » 2009-06-07 03:17:46

It could be called the intersection points of the planes x=0, y=0, and z=0.

#38 Re: Jokes » Some interesting facts... » 2009-06-04 13:10:09

LorraineBR wrote:

#192 The hardness of ice is similar to that of concrete.

Oh, so THAT'S why dentists tell us not to chew ice...
207)Actually, a duck's quack DOES echo, but normally ducks are not in areas where it will echo. (y'know, fields with not much other than grass and leaves)
208)It is very hard to drown in quicksand.
209)"Numa Numa" translates to "Don't Want Don't Want". (the song can be found here: http://www.youtube.com/watch?v=L7si10ipel0) The actual name is  Dragostea Din Tei (Love From The Linden Trees).

#39 Re: Help Me ! » Prove, using comittee-forming... » 2009-05-24 11:20:01

Hey, thanks!
I also need to prove it using block-walking. Any ideas?

#40 Help Me ! » Prove, using comittee-forming... » 2009-05-24 09:06:26

simron
Replies: 6

... that C(n, 0)[sup]2[/sup] + C(n, 1)[sup]2[/sup] +...+ C(n, n-1)[sup]2[/sup] + C(n, n)[sup]2[/sup]= C(2n, n) (thanks bobbym for reminding me what this added to). This is for a class, Introduction To Counting And Geometry, and this problem set is due tomorrow, so any help would be appreciated. tongue

#41 Re: Dark Discussions at Cafe Infinity » Reaction of alkali metals with water » 2009-05-19 11:41:10

bobbym wrote:

Hi Jane;

  See that you are in an explosive mood. This little vid while not containing much pyrotechnics does give some information on how chemists use the periodic chart. Nice to see some things haven't changed.

http://www.youtube.com/watch?v=PyFLvSg6ZDw&feature=related

Actually, they faked that with a depth charge... they came out and said it on YouTube.

#42 Re: Coder's Corner » Python! » 2009-05-19 11:39:28

Hmm, I haven't had that problem before.
*checks version*
Oh shoot, I use 2.6. I recommend that you install 2.6, but you could just search google when something doesn't work.
(Oh, and I'd recommend installing Python to a flash drive.)

#43 Re: Jokes » Things to do in an elevator » 2009-05-16 07:01:20

Ask a five-year-old to draw their name on the button panel.

#44 Re: Dark Discussions at Cafe Infinity » De- » 2009-05-15 13:23:22

I used to be a civil engineer until I was uncivilized.

#45 Re: Maths Is Fun - Suggestions and Comments » Post error » 2009-05-15 09:45:59

You can't do hides inside of hides. It's there to prevent having people posting hide inside of hide inside of hide to infinity and then at the end, posting:
LOLZ ROFLOL I WASTED UR TIME HAHAHAHAHAHAHAHAHAHA

#46 Re: Introductions » Hi » 2009-05-15 06:33:15

Welcome to the forum! It's great to have you here.
I used to think I wasn't good at math... but then I noticed this website! It's very useful.

#47 Re: Introductions » Hi » 2009-05-13 09:43:45

LorraineBR wrote:

tanx although der not needed so much at home, im irish. r u really only 11??

Ireland, a fine country in my opinion. smile
Yes, I am really 11.
Just noticed that you're the first member I've seen (other than me) that posted while they were still the newest member.

#50 Re: Introductions » Hi » 2009-05-13 06:16:32

Hi, LorraineBR, and welcome to the forum!
Good choice for college education, engineers are really needed these days (at least in the US)

Board footer

Powered by FluxBB