From: Paul Lutus <nospam@...>
Date: 2006-09-11T03:50:41+09:00
Subject: Re: Matrix

v.srikrishnan@gmail.com wrote:

> Hi all,
> a) Is there a way to create a non-square matrix in ruby?

Another poster has answered this one.

> b) How does one set any arbitrary element of an array?

Like this:

-------------------------------------------

#! /usr/bin/ruby

size = 9

# create, preset value

array = Array.new(size) { Array.new(size) {"."} }

# change one value

array[4][4] = '*'

# show it

array.each do |b|
   b.each do |i|
      print b[i]
   end
   puts ""
end

Output:

.........
.........
.........
.........
....*....
.........
.........
.........
.........

-- 
Paul Lutus
http://www.arachnoid.com