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

You are not logged in. #1 20130204 22:50:09
Nth digit functionIs ther a function that finds nth digit of a natural number(like f_2(3250)= 5) if there is how is it defined? #2 20130204 23:04:51
Re: Nth digit functionhi Harold, You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #3 20130204 23:19:55
Re: Nth digit functionNo, i meant is there any way to get a relation for the function,like digital root is defined as sum of digits but it's simple relation is dr(x)= x mod 9. #5 20130205 03:42:43
Re: Nth digit functionWill f_n(x)= [10{x/10^n}] be a relation where [] is integer part and {} is fractional part?(i got the idea from your first post.) #6 20130205 03:51:12
Re: Nth digit functionHi; where n is the number and p is the position. 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. #7 20130205 04:02:15
Re: Nth digit functionYes, that looks good to me. How about an extra bracket? You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei 