Dir[File.join(Rails.root, "lib", "core_ext", "*.rb")].each {|l| require l }

class Array
    def median
      sorted = self.sort
      len = sorted.length
      return (sorted[(len - 1) / 2] + sorted[len / 2]) / 2.0
    end
end

array = [1, 3, 5, 3, 6, 5, 8, 23, 49]
array.median