From: Tommy Nordgren <tommy.nordgren@...>
Date: 2007-12-30T02:18:36+09:00
Subject: Bug in ruby complex module:

Transcript :
emac$ irb
 >> require 'complex'
=> true
 >> cc = Complex(Float::MAX/2, Float::MAX / 2)
=> Complex(8.98846567431158e+307, 8.98846567431158e+307)
 >> cc / cc
=> Complex(NaN, NaN)
 >> require 'cpfixup'
=> true
 >> cc / cc
=> Complex(1.0, 0.0)
 >> exit
Work Directory: ~ :
emac$
Th source of the fix (in a file called 'cpfixup.rb' in my home  
directory is

require 'complex'

class Complex < Numeric

   def / (other)
     if other.kind_of?(Complex)
       magn = other.abs
       tmp = Complex.new(other.real/magn , other.image/magn)
       self * tmp.conjugate / magn
     elsif Complex.generic?(other)
       Complex(@real/other, @image/other)
     else
       x, y = other.coerce(self)
       x / y
     end
   end
end

------------------------------------
This sig is dedicated to the advancement of Nuclear Power
Tommy Nordgren
tommy.nordgren@comhem.se