float_range.rb

module FloatRange
  def each
    if Float === self.begin
      current = self.begin
      if exclude_end?
        while current < self.end
          yield current
          current = current.next_float
        end
      else
        while current <= self.end
          yield current
          current = current.next_float
        end
      end
    else
      super
    end
  end
end

class Range
  prepend FloatRange
end