Mathematics
Well we have threads for foreign languages, why can't we have one for mathematics? This is pretty much a thread about anything to do with maths.
Ready... Set... Go! By the way, sorry I've been offline for so long.:cry 
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As for mathematics, I can't really think of anything. The only smart mathematical theory I know is the Quatratic Formula: B +/ the square root of B(squared)  4AC divided by 2A. 
It doesn't have to be a "smart Mathematical theory, it's just a discussion about anything to do do with Mathematics.

cool I'm in. I'm rusty but I used to be quite good... back when I was trying to become an engineer ;)

Oh yeah, I'm part of this "Maths Challenge" thing in school. I might get put on the "Maths Team" and compete against other schools in Mathematics. Cool huh?

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I did a competition for my final assesment in math... well I only had to do the first round and after passing it and writing my paper about it, I quit the competition for time reasons. So I never found out how far I would have gotten. So what shall we talk about? How do people feel about the square root of 1 not being defined? 
When I took algebra, we always made the square root of 1 "i". In that situation, the square root of a number such as 16 would equal 4(i), or something to that effect. Since there's no way to solve for a negative square root, I'd say it would be pretty hard to define.
8o 
Sorry,
it's the oposite. i square is 1 but the square root of 1 will remain undefined. Which is a trap I stepped into with much gusto over the years, :) The things you can prove with that mistake, it's hillarious. 
Luckily, I never had to try and prove anything with that mistake, or else I would probably have learned that lesson like you did. :

I remember the rule of 1. I flunked math both in High School and College...along with half the class.

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:lol:lol:lol
That is hilarious. To be honest, I would have no idea how to solve that. Nice save; you did answer the question correctly. Was it that on a test? 
Actually, I saw the image on a website, remembered it, and posted the link here. I wish I had done that in my Math class, though, just to see what the reaction would be.

it's cool! *L*
and technically correct. 
How sad I know the answer.
x=5cm Formula is x(squared) = a(squared) + b(squared) x(squared) = (4x4) + (3x3) x(squared) = 16 + 9 x(squared) = 25 x = square root of 25 x= 5 
i may even remember the the formula for nonright angles if I concentrate, how sad is that? *L*
something like: c²= a²  2ab COS(α) + b² probably wrong though, so someone please correct me :) . In any case the Cos of 90 degrees is zero, that's why it simplifies to c² = a² + b² 
(Smiles and nods)

did I get it right?

I don't know. I'm smiling and and nodding because I don't know what your doing.

ah :lol Ok.
*smiles and nods too, pretending she knows what she's doing* 
I have this friend who is a Maths GENIUS. And I don't just mean she's really clever/ good at Maths, she's an actual genius (though of course nowhere near Sam's level :b).
http://imgs.xkcd.com/comics/purity.png 
That's excellent.

xkcd.com has loads of these.

Sadly, I don't even know what the subject of physics is...
But I must say, math must be more important than school children think when they moan "why do I have to take this? I'll never use algebra." 
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maths is just such an underlying foundation of everything, that sometimes it's really hard to see its application. Even if it's right in front of you. *L* it just describes the way life works. :) Do you know this one? How does a Mathematician catch a lion? He builds a cage around himself and defines the inside as the outside. Done. 
Sorry if I was unclear. I mean that I don't understand what Physics focuses on. I know that the focus of biology is the study of living organisms, psychology is the study of the mind, but I don't know what physics studies.

As a mathematician and mathematics teacher, I think I'll do well in this group :D.
And when in doubt, check wikipedia... http://en.wikipedia.org/wiki/Physics 
Pretty much the underlying mechanics of everything.
Why things stay as they are why thing interact as they do, fields (gravity... although some say that's particles, magnetic fields, electric fields) Electricity, Thermal behavior, sounds, light (and other electromagnetic waves), nuclear phisics... that's decay rates and types of radiation and so on, quantum physics, that's how the smallest particles hold together and interact. Up to astrophyscis. it's not a proper formal list, here's one: http://physics.about.com/od/physics1...ldsPhysics.htm it's pretty much describing the behavior and underlying forces of ... yup... everything. :) And that in turn is based on maths. Was that your question? 
It was my question. Thank you for the quick and complete response.

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So did I get my formula right a few posts ago? :) (you shouldn't have told me, now I may keep pestering you with questions 8) :D ) 
I'm doing nuclear physics at school at the moment! I'm thinking of doing Physics for ALevel actually...

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Awesome. I've been thinking about it more and mre, and I think I definitely am going to.

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When are the the Alevels? 
In a couple of years' time. I'm doing my GCSEs this year, and then I'm going into Sixth Form to do Alevels for two years.

Ah, plenty of time to choose. :)

Indeed. :D

3.141592654=Circumference/Diameter
~Steve B. 
Oh yeah? Well if Tom has five apples, and Sally asks for two apples, how many apples does Tom have?
8o Take that, smart math people. :roflmao::lol:nut Sorry, it's 10:30 at night and I've had too much caffeine today. 
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