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

You are not logged in. #1 20121220 04:04:16
Hello! This Is RadioBoyHello, I have just joined the math is fun forum. I expect interesting things here and will also share my experience of math. For example, the miracle of digit 9. The product of digit nine in interaction with itself will always be nine (9 x 9 = 18 = 1+8 =9). #2 20121220 04:40:06
Re: Hello! This Is RadioBoyHi RadioBoy 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 “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #3 20121220 05:49:47
Re: Hello! This Is RadioBoyHi RadioBoy; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #4 20121220 17:19:52
Re: Hello! This Is RadioBoyHi RadioBoy, Character is who you are when no one is looking. #5 20121221 12:13:01
Re: Hello! This Is RadioBoyWelcome! "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #6 20121226 18:38:51
Re: Hello! This Is RadioBoyBelated welcome to the forum, RadioBoy! 246 pages on Prime Numbers Wiki (+1) #7 20121226 19:56:07
Re: Hello! This Is RadioBoyhi RadioBoy,
or a number that reduces to nine eg. 109739369 x 9 = 987654321 ....9+8+7+6+5+4+3+2+1= 45 ... 4+5 = 9. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei 