gistfile1.rb

module MathTalk
  def array_add(arr)
    result = 0
    arr.each { |x| result += x }

  rescue

    unless arr.is_a?
      result = "Enter an array stupid!"
    end

    return result
  end

  # def array_op_cycler(arr, cycle_in = 1)
  # end
  
end

MathTalk.array_add("bla")