Just a remark for all the matrix discussion.
I raised the discussion and I realized that after there was something
bizarre...

Array2d for represent a 2d Array and to that regards (contrary to what 
I said)
has a good name. The idea is to have a matrix-like way of storing think.

Now the question is:
do we want to put all the mathematical matrix manipulation in this 
class or in a
  separate class Matrix

Stef


On lundi, novembre 25, 2002, at 01:06  am, ok at cs.otago.ac.nz wrote:

> from preamble:
>
> "Change Set:		Matrix-raok
> Date:			25 November 2002
> Author:			Richard A. O'Keefe
>
> This started with me noticing that many of the Collection methods that
> make
> sense for 2D arrays did not work for Squeak's Array2D class.  Having
> fixed
> that, I went on to provide a lot of other good stuff, but realised too
> late that
> Array2D has its subscripts in the wrong order so I don't want to use it
> anyway.
> Therefore I created a new Matrix class which does the same job as
> Array2D but
> is free of Array2D's more glaring defects.  In particular, elementwise
> arithmetic,
> matrix multiplication, transposition, swapping rows and swapping
> columns, printing,
> and element searches are provided.  Some more methods were added in 
> late
> November
> in response to an e-mesage from Bert Freudenberg."!
> <Matrix-raok.cs.gz>
Dr. Stéphane DUCASSE (ducasse at iam.unibe.ch) 
http://www.iam.unibe.ch/~ducasse/
  "if you knew today was your last day on earth, what would you do
  different? ... especially if, by doing something different, today
  might not be your last day on earth" Calvin&Hobbes