From: Ryan Davis <ryand-ruby@...>
Date: 2012-02-07T04:35:18+09:00
Subject: Re: Easy loop question

Please do your own homework

On Feb 6, 2012, at 11:01, Viera Tarcova <faithfromslovakia@gmail.com> wrote:

> Hello guys, this loop makes all the even numbers being divided by two
> and odd numbers multiplied by three plus one.
> But how would you make the loop stop when it gets to number one?
> Thank you
> 
> 
> def f n # this function calculates next number in your sequence
>  if n % 2 == 0 # n is even
>    return n / 2
>  else
>    return n * 3+1
>  end
> end
> 
> num = gets.to_i # read in a number
> while true # infinitely...
>  num = f(num) # find the next number
>  puts num # print it
>  sleep 1 # wait one second
> end
> 
> -- 
> Posted via http://www.ruby-forum.com/.
>