{"provider_url":"https://hatena.blog","image_url":null,"blog_url":"https://boxnos.hatenablog.com/","width":"100%","author_url":"https://blog.hatena.ne.jp/tanakaBox/","version":"1.0","description":"\u3069\u3046\u3084\u3089\u50d5\u306eSICP\u30ea\u30fc\u30c7\u30a3\u30f3\u30b0\u901f\u5ea6\u306f\u304b\u306a\u308a\u9045\u3044\u3089\u3057\u3044(\u6c57\u56de\u308a\u304c\u51c4\u3044\u4eba\u9054\u3060\u3089\u3051\u306a\u306e\u3067\u3001\u5727\u5012\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u30de\u30a4\u30da\u30fc\u30b9\u3067\u884c\u3053\u3046\u3068\u601d\u3046\u3002 \u554f\u984c 2.37 \u30d9\u30af\u30c8\u30eb\u6f14\u7b97\u306e\u554f\u984c\u3002\u884c\u5217\u304c\u3042\u3093\u307e\u5f97\u610f\u3058\u3083\u306a\u3044\u3002\u3064\u3046\u304b\u6570\u5b66\u5168\u822c\u7684\u306b\u3002 (define v '(1 2 3)) (define w '(4 5 6)) (define m '((1 2 3) (4 5 6) (7 8 9))) (define n '((9 8 7) (6 5 4) (3 2 1))) (define (dot-product v m) (fold + 0 (map * v m))) (dot-product v w) ; 32 (de\u2026","categories":["Scheme"],"provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20071023%2F1193115562\" title=\" SICP\u3092\u8aad\u3080(57) \u554f\u984c 2.37 - 2.39 - \u30dc\u30af\u30ce\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","title":" SICP\u3092\u8aad\u3080(57) \u554f\u984c 2.37 - 2.39","blog_title":"\u30dc\u30af\u30ce\u30b9","published":"2007-10-23 13:59:22","author_name":"tanakaBox","type":"rich","url":"https://boxnos.hatenablog.com/entry/20071023/1193115562"}