Logistic map enumerator in Ruby

logisticmap.rb

# Enumerator based Logistic map, can be used as a PRNG as well.

def logistic_map(x0, r)
  return Enumerator.new do |yielder|
    number = x0.to_f
    r = r.to_f
    loop do
      yielder.yield(number)
      number = r * number * (1 - number)
    end
  end
end