gistfile1.rb

class Wektor
  attr_accessor :coords

  def initialize(length)
    @coords = Array.new(length, 0)
  end

  def set!(w)
    @coords = w.dup

    self
  end

  %i(* /).each do |op|
    define_method(op) do |n|
      coords.map! { |i| i.send(op, n) }

      self
    end
  end

  %i(- +).each do |op|
    define_method(op) do |v|
      @coords.zip(v).map { |a, b| a.send(op, b) }
      
      self
    end
  end

  def shift_right!
    coords.rotate!
    coords[0] = 0

    self
  end
end