{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fse-kichi.hatenadiary.org%2Fentry%2F20080916%2F1221581554\" title=\"exercise 4.18 - \u304d\u3061\u3081\u3082\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","url":"https://se-kichi.hatenadiary.org/entry/20080916/1221581554","version":"1.0","blog_url":"https://se-kichi.hatenadiary.org/","published":"2008-09-16 01:12:34","categories":["SICP","exercise"],"image_url":null,"width":"100%","height":"190","title":"exercise 4.18","provider_url":"https://hatena.blog","description":"\u7d9a\u304d ex4.18 \u3084\u3063\u3066\u307f\u308b\u524d\u306b\u89e3\u7b54\u3002 4.18\u306e\u4f8b\u3060\u3068\u3001dy\u306e\u5b9a\u7fa9\u6642\u306by\u304c*unassigned*\u3067\u30a8\u30e9\u30fc\u3002 \u3088\u3046\u3059\u308b\u306b\u3001\u3053\u306e\u4f8b\u3060\u3068\u3001\u5185\u90e8\u5b9a\u7fa9\u3092\u76f8\u4e92\u306b\u884c\u3048\u306a\u3044\u3068\u3044\u3046\u304b\u306a\u3093\u3068\u3044\u3046\u304b\u3002\u307e\u3041\u3068\u3044\u3046\u3053\u3068\u3067\u5b9f\u884c\u3057\u3066\u307f\u308b\u304b\u3002 \u307e\u305a\u3001delay\u3068\u304b\u306e\u6e96\u5099 (define (delay-exp exp) (cadr exp)) ;;\u30e1\u30e2\u5316\u7121\u3057ver ;;(define (delay->lambda exp) (make-lambda '() (list (delay-exp exp)))) (define (delay->memo-lambda exp) (list 'memo-proc (make-la\u2026","provider_name":"Hatena Blog","author_name":"se-kichi","blog_title":"\u304d\u3061\u3081\u3082","author_url":"https://blog.hatena.ne.jp/se-kichi/"}