From: Martin DeMello <martindemello@...>
Date: 2007-12-18T04:51:47+09:00
Subject: Re: dividing by two and rounding up

On Dec 18, 2007 12:12 AM, Tom Norian <tomnorian@yahoo.com> wrote:
>
> How do I divide a number (integer) by 2 and get a result that is like:
>
> 5/2 I want 3
>  6/2 I want 3
> 7/2 I want 4

(n+1)/2

irb(main):001:0> (1..10).map {|i| [i, (i+1)/2]}
=> [[1, 1], [2, 1], [3, 2], [4, 2], [5, 3], [6, 3], [7, 4], [8, 4],
[9, 5], [10, 5]]

martin