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

You are not logged in. #1 20060101 22:15:39
Function that dicsern the numbers?I need a function dic(x) that gives 1 when x is rational and 0 when it's irrational. IPBLE: Increasing Performance By Lowering Expectations. #2 20060101 23:09:38
Re: Function that dicsern the numbers?You could prove a number is rational by discovering the ratio (example: 1.5 is 3/2, hence rational) "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #3 20060102 04:21:49
Re: Function that dicsern the numbers?I found something: 2.Irrational, when HS_r[x] is not a periodic function. Last edited by krassi_holmz (20060102 04:23:42) IPBLE: Increasing Performance By Lowering Expectations. #4 20060102 04:28:04
Re: Function that dicsern the numbers?But it's useless, because I don't know nontrivial terms for a function to be periodic. IPBLE: Increasing Performance By Lowering Expectations. 