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

You are not logged in. #1 20090728 01:35:53
A few exs for testpreparation1) A number times two, added twelve and then the result divided by two equals fifteen. What's the number? "Mathematics may be defined as the subject in which we never know what we are talking about, nor whether what we are saying is true." Bertrand Russell #2 20090728 05:17:57
Re: A few exs for testpreparationLast edited by bobbym (20090728 05:27:08) 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. #3 20090817 22:57:56
Re: A few exs for testpreparationDear Ubergeek 