SICP/util.scm

16 lines
304 B
Scheme
Raw Normal View History

2020-10-20 03:36:17 +02:00
(define (assert a b)
(cond ((equal? a b) (display "[ok]"))
(else
(display "[error] ")
(display a)
(display " != ")
(display b)))
(newline))
(define (gcd a b)
(if (= b 0) (abs a) (gcd b (remainder a b))))
2020-10-24 17:24:13 +02:00
(define (average a b) (/ (+ a b) 2.0))
2020-10-20 03:36:17 +02:00
;(assert (gcd 93 15) 3)