Fibs and Facts

Fibonacci and Factorial are two of the basic examples for functional programming languages. Here we show their implementation in Wu.

Fibonacci

 fib n = (> 2 n) 1 (+ 1 (+ (fib (- n 1) (- n 2))));
 linfib x y n = (== 0 n) y (linfib y (+ x y) (- n 1));

Factorial

 fact n = (> 2 n) 1 (* n (fact (- n 1)));

or,

 fact n = foldr + 0 (range 1 n);