class Array

# File lib/core_ext/array.rb, line 7
def to_f
  map { |str| str.to_f }
end

# File lib/core_ext/array.rb, line 3
def to_i
  map { |str| str.to_i }
end

# File lib/core_ext/array.rb, line 11
def to_num
  begin
    to_i
  rescue
    begin
      to_f
    rescue
      raise "Unable to convert #{self} #to_num"
    end
  end
end