defmodule Test do @moduledoc false import Exoteric defcase fib do 0 -> 1 1 -> 1 n -> fib(n - 1) + fib(n - 2) end defcond fizzbuzz(n) do rem(n, 15) == 0 -> "FizzBuzz" rem(n, 5) == 0 -> "Buzz" rem(n, 3) == 0 -> "Fizz" n -> n end defmulti fib_tail_rec do n -> fib_tail_rec(n, 1, 1) 0, a, _ -> a n, a, b -> fib_tail_rec(n - 1, b, a + b) end def even_or_odd(n) do rem(n, 2) == 0 \\ "even" \\ "odd" end end