From: Corey Haines <coreyhaines@...>
Date: 2007-12-18T07:41:21+09:00
Subject: Re: dividing by two and rounding up

Why not get the arrays:

irb(main):022:0> a
=> [1, 2, 3, 4, 5, 6]
irb(main):023:0> a.slice(0,3)
=> [1, 2, 3]
irb(main):024:0> a.slice(3,3)
=> [4, 5, 6]
irb(main):025:0> b
=> [1, 2, 3, 4, 5]
irb(main):026:0> b.slice(0,3)
=> [1, 2, 3]
irb(main):027:0> b.slice(3,3)
=> [4, 5]

then loop over them creating the columns.

-corey




On Dec 17, 2007 4:12 PM, Jari Williamsson
<jari.williamsson@mailbox.swipnet.se> wrote:
> Tom Norian 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
>
> Here's another way, one integer division, but 2 instructions:
>
> a = 5.divmod(2)
> result = a[1] + a[2]
>
>
> Best regards,
>
> Jari Williamsson
>
>



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