From: Marcio Braga <mbraga0001@...>
Date: 2008-08-05T12:24:40+09:00
Subject: Re: Matrix class: How to set a single element ?

> http://www.ruby-lang.org/ja/man/html/Matrix.html#Matrix.23.5b.5d.3d
> Harry

The example of that page:

m=Matrix[[11,12],[21,22]]
m[1,1]=-1

... gives me the following error message:

undefined method '[]=' for Matrix[[11, 12], [21, 22]]:Matrix 
(NoMethodError)


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