Building Lists in Scheme
Or, the differences between append, cons, & list from sicp 2.26: Suppose we define x and y to be two lists: (define x (list 1 2 3)) (define y (list 4 5 6)) What’s the output of the following? (append x y) ;; (1 2 3 (4 5 6)) ;; but actually ;; (1 2 3 4 5 6) (cons x y) ;; ((1 2 3) (4 5 6)) ;; but actually ;; ((1 2 3) 4 5 6) (list x y) ;; (1 2 3 4 5 6) ;; but actually ;; ((1 2 3) (4 5 6))