http://t3x.org/t3x/exam-fib.html (light|dark)
Examples: fibonacci | mandelbrot | number-conversion | strings
Print the first 10 Fibonacci numbers.
fib(n) do var x1, x2, i, t; x1 := 0; x2 := 1; for (i=1, n) do t := x2; x2 := x2 + x1; x1 := t; end return x2; end do var i; for (i=1, 11) do writes(ntoa(fib(i))); writes("\n"); end end