{"title":"\u62ec\u5f27\u306e\u96e3\u6613\u5ea6\u306f\u9ad8\u3044","author_url":"https://blog.hatena.ne.jp/MAS3/","categories":["Scheme"],"blog_title":"\u81ea\u4f5c\u306e\u30bd\u30d5\u30c8\u958b\u767a\u8a18\u9332","published":"2008-09-17 00:00:00","width":"100%","provider_url":"https://hatena.blog","author_name":"MAS3","height":"190","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmas3.hatenadiary.org%2Fentry%2F20080917%2Fp1\" title=\"\u62ec\u5f27\u306e\u96e3\u6613\u5ea6\u306f\u9ad8\u3044 - \u81ea\u4f5c\u306e\u30bd\u30d5\u30c8\u958b\u767a\u8a18\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://mas3.hatenadiary.org/","image_url":null,"type":"rich","url":"https://mas3.hatenadiary.org/entry/20080917/p1","description":"Scheme\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u305f\u3002\u305f\u3060\u306e\u30c6\u30ad\u30b9\u30c8\u30a8\u30c7\u30a3\u30bf\u3067\u66f8\u304f\u306e\u306f\u7121\u7406\u3067\u3059\u306d\u3002\u5c11\u306a\u304f\u3068\u3082\u81ea\u52d5\u30a4\u30f3\u30c7\u30f3\u30c8\u3068\u62ec\u5f27\u306e\u5bfe\u5fdc\u8868\u793a\u306f\u5fc5\u9808\u3067\u3059\u3002SICP\u306e\u554f\u984c\u3092\u89e3\u3044\u3066\u3044\u308b\u306e\u3067\u3059\u3051\u3069\u3001\u53cd\u5fa9\u7684\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u30eb\u30fc\u30d7\u3067\u66f8\u304f\u65b9\u304c\u6163\u308c\u3066\u3044\u308b\u306e\u3067\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002\u3068\u3044\u3046\u304b\u3001Scheme\u3067\u66f8\u304f\u3068\u9055\u548c\u611f\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u554f\u984c1.17\u306e\u518d\u5e30\u7684\u306a\u306e\u306f\u666e\u901a\u3068\u3044\u3046\u5370\u8c61\u3002 (define (double n) (* n 2)) (define (halve n) (/ n 2)) (define (times a b) (cond ((= b 0) 0) ((even? b) (times (double a) (halve \u2026","version":"1.0"}