DEBSOURCES
Skip Quicknav
sources / ruby1.9.1 / 1.9.3.194-8.1%2Bdeb7u5 / sample / fib.rb
12345678910
# calculate Fibonacci(20) # for benchmark def fib(n) if n<2 n else fib(n-2)+fib(n-1) end end print(fib(20), "\n");