title: question on overriding + operator in ruby
body: <p>A recent convert to Ruby here. The following question isn't really practical; it's more of a question on how the internals of Ruby works. Is it possible to override the standard addition operator to accept multiple inputs? I'm assuming that the answer is no, given that the addition operator is a standard one, but i wanted to make sure i wasn't missing something.</p>
  
  <p>Below is the code I wrote up quick to verify my thoughts. Note, it's completely trivial/contrived.</p>
  
  <pre><code>class Point
      attr_accessor :x, :y
  
      def initialize(x,y)
          @x, @y = x, y
      end
  
  
      def +(x,y)
          @x += x
          @y += y
      end
  
  
      def to_s
          "(#{@x}, #{@y})"
      end
  end
  
  pt1 = Point.new(0,0)
  pt1 + (1,1) # syntax error, unexpected ',', expecting ')'
  </code></pre>