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#26 2012-11-17 15:10:50
- zehao1000
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Do you know this unproven theory?
Any even number can be writen as the sum of 2 primes, for example: 8=5+3, 16=7+9, mathematicians have calculated over 1 trillion even numbers and all have this property, this is unsolved, and has fascinated mathematicians.
#27 2012-11-17 17:37:58
- bobbym
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Hi zehao1000;
Yes, it was formulated by Christian Goldbach and sent to Leonhard Euler. It is called the Goldbach conjecture.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#28 2012-11-17 17:48:15
- Calligar
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Hi zehao1000,
welcome to the forum!
Very impressive for a 12 year old! I also did not know this theory, it is definitely really interesting; I can definitely understand why mathematicians would be fascinated over it.
I personally wasn't a big fan of contests myself, not to mention I don't feel I was the most suitable back then. I was in one math contest in my life, I actually moved on to um...I think they called it regionals (where the best from the different schools of the region compete to see who's the best), as only 2 from our school were allowed to move on. In the regionals, only the best person moved on from there, and it wasn't me, but the other one from the my school. I was very...ignorant back then, and regret that I put forth no effort into learning, as I probably could have moved on even further than that if I at least tried. I honestly didn't even know anything about the contest I entered; my teacher was sharing it, I knew I was good at math, and figured it would be fun.
Though my own experience might have been more of a failure, if you love these contests, I encourage you to continue on. If your dream is to make it to that point in the contest, then I strongly encourage you to do so! I might not be very familiar with the contest you're interested in, but I'm pretty sure you have the potential. Though, I would personally like to caution you on "bragging" about your own abilities too (like to your friends and stuff). It can discourage those who otherwise would want to take up math later, even if you only joke around about it. On top of that, it can show your own incompetence.
Anyway, after this long post, I know the next contest isn't anytime soon, but I wish you luck in it anyway! Also, if you need help, there are plenty of mathematicians on this site that can help you.
Life isn’t a simple Math: there are always other variables. -[unknown]
But Nature flies from the infinite, for the infinite is unending or imperfect, and Nature ever seeks an end. -Aristotle
#29 2012-11-17 18:55:48
- anonimnystefy
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Hi zehao1000
Welcome to the forum! 
Last edited by anonimnystefy (2012-11-17 18:59:36)
The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“A secret's worth depends on the people from whom it must be kept.” ― Carlos Ruiz Zafón
#30 2012-11-17 20:29:54
- bob bundy
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hi zehao1000
And a very big welcome from me too.
Bob
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
#32 2012-11-18 06:54:44
- bobbym
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Did you know that it has been proven for 3 primes?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#33 2012-11-18 08:22:40
- zehao1000
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No, I got it from my math teacher, only know that it is for 2 primes, and I made a mistake, 9 is not prime from 9+7, it should be 11+5=16, but interesting fact anyways.
#34 2012-11-18 09:28:16
- bobbym
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Hi;
That is the conjecture, it is for two primes. Over the years mathematicians have solved it for less and less primes in the hopes of taking the last step to two.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#35 2012-11-18 11:06:01
- zehao1000
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Well, I read the story about it a few hours ago so I know about it now, so it is 3 primes for any even greater than 5 and 2 for any even greater than 2.
#36 2012-11-18 11:16:47
- bobbym
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Hi;
What were you reading?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#37 2012-11-18 11:41:43
- zehao1000
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Wikipedia; but I'm just assuming they're correct, since I heard that wikipedia isn't always accurate.
#38 2012-11-18 11:42:52
- bobbym
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That is true. Do you like number theory?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#39 2012-11-18 12:15:44
- zehao1000
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It's pretty easy so yes, and I know a lot divisibility rules, but I'm better at geometry.
#40 2012-11-18 12:26:54
- bobbym
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Hi;
Yes but do you like geometry the best of all?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#41 2012-11-18 12:32:52
- zehao1000
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Geometry is easy, but logic problems are my favourite, for example, Einstein Riddles.
#42 2012-11-18 13:12:27
- bobbym
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Hi;
What about probability and combinatorics for instance?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#43 2012-11-18 13:37:45
- zehao1000
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Very bad at it such as those type of problems that state " in how many ways can you get from point A to point B?" or those types that are like "how many numbers between 1-1000 do not have 1 as a digit?" too many formulaes and comfuse them.
#44 2012-11-18 13:42:26
- zehao1000
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And maybe we should stop this chat since it's reaching the 40th posts? Maybe just some random math problems instead of asking what's your favourite topic, because this is becoming attractive, which it should'nt be.
#45 2012-11-18 13:57:46
- bobbym
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Hi;
Okay, post your problems but start a new thread.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#46 2012-11-18 14:27:36
- zehao1000
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Okay, I'll post a random question somewhere else.(Don't need to reply, in fact no one should or else the whole process will repeat again.)