From: Rob Biedenharn <Rob@...>
Date: 2007-10-20T13:55:46+09:00
Subject: Re: Create matrix with random numbers

On Oct 19, 2007, at 9:38 PM, Jason Bornhoft wrote:
>> Not sure what you want exactly, but, maybe...
>>
>> require 'matrix'
>> a, b = 2, 3
>> m = Matrix[*(Array.new(a) {Array.new(b) {rand}})]
>>
>> Todd
>
> What I would ideally like is to be able to specify the size of the
> matrix and then have a random function populate the matrix with real
> integers or, eventually, complex numbers.
>
> Thanks for the guidance...

So something like:

require 'matrix'
def some_random_function
   # make something up, perhaps something complex
end
rows, columns = 2, 3
matrix = Matrix[*(Array.new(rows) {Array.new(columns)  
{ some_random_function }})]

And, yes, that just about exactly what you were already given. ;-)

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com