From: MikkelFJ <mikkelfj-anti-spam@...>
Date: 2002-12-01T09:01:07+09:00
Subject: Re: Numerical Ruby


"MikkelFJ" <mikkelfj-anti-spam@bigfoot.com> wrote in message
news:3de94bd0$0$47406$edfadb0f@dtext01.news.tele.dk...

> Is there any way you could use Ruby to implement a symbolic evaluation
> instead of an explicit evaluation?

In my long tradition of replying to myself,
one could imagine something like the following:

class SymScalar
  attr_reader :var
  def initialize name
    @var = name
  end
  def + a
    puts "#{@var} + #{a.var};"
  end
end

sx = SymScalar.new "x"
sy = SymScalar.new "y"

sx + sy ==> x + y;


Mikkel