SICP Exercise 3.54
2011-07-17 12:06
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Exercise 3.54
;;Exercise 3.54
(define (mul-streams s1 s2)
(stream-map * s1 s2))
(define factorials (cons-stream 1 (mul-streams (integers-starting-from 2)
factorials)))由于n! = (n-1)! * n，所以就有了上述的代码。
;;Exercise 3.54
(define (mul-streams s1 s2)
(stream-map * s1 s2))
(define factorials (cons-stream 1 (mul-streams (integers-starting-from 2)
factorials)))由于n! = (n-1)! * n，所以就有了上述的代码。
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