RosettaCodeData/Task/Zero-to-the-zero-power/Ruby/zero-to-the-zero-power.rb

require 'bigdecimal'

[0, 0.0, Complex(0), Rational(0), BigDecimal.new("0")].each do |n|
  printf "%10s: ** -> %s\n" % [n.class, n**n]
end