{"blog_url":"https://boxnos.hatenablog.com/","published":"2007-07-17 22:57:14","provider_url":"https://hatena.blog","url":"https://boxnos.hatenablog.com/entry/20070717/1184680634","categories":["Scheme"],"image_url":null,"description":"\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3063\u307d\u304f\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u306d\u3002\u4eca\u56de\u306f\u70b9\u3068\u7dda\u3001\u9577\u65b9\u5f62\u306e\u5b9a\u7fa9\u3002\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3070\u3063\u304b\u308a\u3084\u3063\u3066\u305f\u6642\u671f\u304c\u3042\u308b\u306e\u3067\u3001\u99b4\u67d3\u6df1\u3044\u6240\u3067\u3059\u3002 \u554f\u984c2.2 \u70b9\u3068\u7dda\u3092\u5b9a\u7fa9\u3057\u3066\u3001\u7dda\u306e\u4e2d\u70b9\u3092\u51fa\u3059\u554f\u984c\u3002 ;segment (define (make-segment start end) (cons start end)) (define (start-segment s) (car s)) (define (end-segment s) (cdr s)) (define (midpoint-segment s) (make-point (/ (+ (x-point (start-segment s)) (x-poi\u2026","width":"100%","height":"190","author_url":"https://blog.hatena.ne.jp/tanakaBox/","provider_name":"Hatena Blog","author_name":"tanakaBox","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20070717%2F1184680634\" title=\" SICP\u3092\u8aad\u3080(35) \u554f\u984c2.2 - 2.3 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3063\u307d\u304f\u306a\u3063\u3066\u304d\u305f\u3002 - \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>","version":"1.0","type":"rich","blog_title":"\u30dc\u30af\u30ce\u30b9","title":" SICP\u3092\u8aad\u3080(35) \u554f\u984c2.2 - 2.3 \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u3063\u307d\u304f\u306a\u3063\u3066\u304d\u305f\u3002"}