```Hi.  Thanks Why and 'captn.

If I wanted to include the array A as a class-accessor, how would I
extend the three def's to the variable?

IE:

class GridMaster
attr_accessor :grid

def create_grid
@grid = [ ... ]
end
End

Irb>gm = GridMaster.new
Irb>gm.create_grid
Irb>gm.grid.row(1)
???

Peter J. Fitzgibbons
Applications Manager
Lakewood Homes - "The American Dream Builder"(r)
Peter.Fitzgibbons / Lakewoodhomes.net
(847) 884-8800

-----Original Message-----
From: why the lucky stiff [mailto:ruby-talk / whytheluckystiff.net]
Sent: Tuesday, August 16, 2005 7:01 PM
To: ruby-talk ML
Subject: Re: Array manipulations questions

Peter Fitzgibbons wrote:
> A.row(1)
> ==> [10, 11, 20, 21]
>
a[0]
=> [10, 11, 20, 21]

def a.row i
at i-1
end
a.row 1
=> [10, 11, 20, 21]
> A.col(1)
> ==> [10, 12, 30, 32]
>
>
>
a.transpose[0]
=> [10, 12, 30, 32]

def a.col i
transpose[i-1]
end
a.col 1
=> [10, 12, 30, 32]

As far as the `grid' method goes, do you want it to always do a 2x2
square or are you looking for some other math here?

def a.grid i
i -= 1
(0..1).map do |j|
at(((i/2)*2)+j)[(i%2)*2,2]
end
end

_why

```