From: Mark Thomas <mark@...>
Date: 2009-04-07T22:39:15+09:00
Subject: Re: Array question - How dynamic is dynamic?

On Apr 7, 8:50 am, Ruby Student <ruby.stud...@gmail.com> wrote:
> Main Array:
>
> mA = [
> [A, B, C, D],
> [B, A, C, D],
> [D, C, B, A],
> [C, A, D, B]
> ]
>
> Sub Arrays:
> sAr0 (sub array row 0 to row n, where n is 3 for this case)
> sAr0 = [A, B, C, D]
> sAr1 = [B, A, C, D]
> sAr2 = [D, C, B, A]
> sAr3 = [C, A, D, B]

I suggest you use the Matrix class (in the standard library).

Though for the row case, you don't need anything special:
sAr0 = mA[0] = [A, B, C, D]
sAr1 = mA[1] = [B, A, C, D]
sAr2 = mA[2] = [D, C, B, A]
sAr3 = mA[3] = [C, A, D, B]
If you change sAr0, it will be reflected in mA[0].

-- Mark.