Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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You are not logged in. #1 2009-08-24 14:14:16
Difference of Two CubesA (rather too short) page on the Difference of Two Cubes "The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman #2 2009-08-24 20:13:48
Re: Difference of Two CubesHi MathsisFun; It does some nifty expansions like: calling a= 5x and b =2 So numbers like 15617 which equal 25^3 - 2^3 can be factored but not always into primes. 15617 = (23)(679) In mathematics, you don't understand things. You just get used to them. Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means. 90% of mathematicians do not understand 90% of currently published mathematics. |