erg/examples/fib.er
Shunsuke Shibayama 96132b20f6 initial commit
2022-08-10 23:02:27 +09:00

6 lines
140 B
Python

fib 0 = 0
fib 1 = 1
# a type annotation is required for the recursive function
fib(n: Nat): Nat = fib(n-1) + fib(n-2)
assert fib(10) == 55