SICP問題2.48
有効線分(セグメント)
(define (make-segment start-vector end-vector) (cons start-vector end-vector)) (define (start-segment segment) (car segment)) (define (end-segment segment) (cdr segment))
有効線分(セグメント)
(define (make-segment start-vector end-vector) (cons start-vector end-vector)) (define (start-segment segment) (car segment)) (define (end-segment segment) (cdr segment))