fib sequence for my stats class.

require 'benchmark'

def fib(n)
  if n == 0 || n == 1
    n
  else
    fib(n-1) + fib(n-2)
  end
end

(1..100).each do |p| #runs benchmark on fib(36) 30 times.
  time = Benchmark.realtime do
    1.times do |k|
      36.times do |i| #run Fib() up to 36
        fib(i)
      end
    end
  end
  puts time #uses Benchmark.rb's format to show system time.
end