Galen Vinter gvinter

Contract Killer

	;; 2.2
	;; SICP Exercise 2.2

	;; takes x and y coordinates to create a point
	(define (make-point x y)
	(cons x y))

	(define (make-segment x1 y1 x2 y2)
	;; needs implementation
	(let

	;; 2.17
	(define (last-pair list)
	(if (= (cdr list) ()
	(car list) ;; if statement parens fixed
	(last-pair (cdr list)) ;; now it's called last-pair recursively

	;; 2.18
	(define (reverse list)
	(if (= (cdr list) ()) ;; if statement inserted
	(= new-list (cons (car list) ()))) ;; extra paren added for if statement