2 (letfed ((s 0 (min 25 (abs (+ s (rnd -1 1)))))
3 (a (norm 1 (tup (rnd -1 1) (rnd -1 1) (rnd -1 1)))
4 (norm 1 (+ a (tup (rnd -0.1 0.1) (rnd -0.1 0.1) (rnd -0.1 0.1))))))
9 ;; ;; (let ((s (rnd -1 1)) (a (rnd -0.25 0.25)))
11 ;; ;; (letfed ((s 0 (abs (+ s (rnd -0.25 0.25))))
12 ;; (letfed ((s 0 (min 25 (abs (+ s (rnd -1 1)))))
13 ;; (a (rnd (neg (pi)) (pi)) (+ a (rnd -0.1 0.1))))
16 ;; (a (rnd (neg (pi)) (pi)) (+ a (rnd -1 1))))