2016-10-19から1日間の記事一覧
練習問題3.53 1,2,4,8,16.... 練習問題3.54 (define (mul-streams s1 s2) (stream-map * s1 s2)) (define factorials (cons-stream 1 (mul-streams (stream-cdr integers) factorials)))
練習問題3.53 1,2,4,8,16.... 練習問題3.54 (define (mul-streams s1 s2) (stream-map * s1 s2)) (define factorials (cons-stream 1 (mul-streams (stream-cdr integers) factorials)))