euler25.rb

   1 load 'fibonacci.rb'
   2
   3 i = 100
   4 while i.fibonacci.to_s.length < 1000
   5   i += 1
   6 end
   7
   8 puts "The #{i}th Fibonacci term has #{i.fibonacci.to_s.length} digits"
   9 puts "The previous, #{i-1}th Fibonacci term has #{(i-1).fibonacci.to_s.length} digits"