From: Rick DeNatale <rick.denatale@...>
Date: 2006-10-13T23:55:11+09:00
Subject: Re: Hash & keys...

On 10/13/06, Phrogz <gavin@refinery.com> wrote:

> I think it is relevant, given that the Vector class is designed to be
> immutable. I would agree that the Vector class should probably define
> #eql? as an alias for #==.

It appears to be a typo in Matrix.rb - This is in ruby1.8.4:

class Vector
   ...
  #
  # Returns +true+ iff the two vectors have the same elements in the same order.
  #
  def ==(other)
    return false unless Vector === other

    other.compare_by(@elements)
  end
  alias eqn? ==
          ~~~

And Vector seems to be the only implementor of eqn?

rick@frodo:~/ruby-1.8.4$ ri eqn
------------------------------------------------------------ Vector#eqn?
     eqn?(other)
------------------------------------------------------------------------
     Alias for #==

And it's not yet fixed in 1.9
rick@frodo:~/ruby-1.8.4$ grep eqn /public/rubysource/ruby1.9/ruby/lib/matrix.rb
  alias eqn? ==



-- 
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/