{"blog_url":"https://kiririmode.hatenablog.jp/","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20071105%2Fp2\" title=\"\u554f\u984c2-7 - \u7406\u7cfb\u5b66\u751f\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/kiririmode/","title":"\u554f\u984c2-7","url":"https://kiririmode.hatenablog.jp/entry/20071105/p2","description":"\u533a\u9593\u3092\u30c7\u30fc\u30bf\u3067\u8868\u73fe\u3059\u308b\u3068\u3044\u3046\u304a\u8a71\u304c\u4eca\u65e5\u304b\u3089\u59cb\u307e\u308a\u307e\u3057\u305f\u304c\u3001\u4eca\u307e\u3067\u3068\u7279\u306b\u304b\u308f\u3089\u306a\u3044\u3002 (define (make-interval a b) (cons a b)) \u305f\u3057\u305f\u308a\u639b\u3051\u305f\u308a\u5272\u3063\u305f\u308a\u3057\u307e\u3059\u3002\u5f15\u304d\u7b97\u304c\u306a\u3044\u3067\u3059\u304c\u3001\u660e\u65e5\u306e\u8ab2\u984c\u3089\u3057\u3044\u3002 (define (add-interval x y) (make-interval (+ (lower-bound x) (lower-bound y)) (+ (upper-bound x) (upper-bound y)))) (define (mul-interval x y) (let ((p1 (* (lower-bound x) (lower-bou\u2026","author_name":"kiririmode","image_url":null,"blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","categories":["SICP"],"version":"1.0","width":"100%","published":"2007-11-05 00:00:01","height":"190","type":"rich"}