{"provider_url":"https://hatena.blog","title":" SICP\u3092\u8aad\u3080(30) 1.3.4(1) \u5024\u3068\u3057\u3066\u8fd4\u3055\u308c\u308b\u624b\u7d9a\u304d","categories":["Scheme"],"version":"1.0","author_name":"tanakaBox","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20070716%2F1184526574\" title=\" SICP\u3092\u8aad\u3080(30) 1.3.4(1) \u5024\u3068\u3057\u3066\u8fd4\u3055\u308c\u308b\u624b\u7d9a\u304d - \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>","author_url":"https://blog.hatena.ne.jp/tanakaBox/","blog_title":"\u30dc\u30af\u30ce\u30b9","blog_url":"https://boxnos.hatenablog.com/","published":"2007-07-16 04:09:34","width":"100%","height":"190","description":"(define (square x) (* x x)) (define (average a b) (/ (+ a b) 2)) (define (average-dump f) (lambda (x) (average x (f x)))) ((average-dump square) 10) \u611f\u52d5\u3057\u305f\u3002\u95a2\u6570\u304b\u3089\u65b0\u305f\u306a\u95a2\u6570\u3092\u751f\u307f\u51fa\u3057\u3066\u308b\u3088!!\u5c55\u958b\u3059\u308b\u3068\u3001 ((average-dump square) 10) ((lambda (x) (average x (square x))) 10) ; \u65b0\u305f\u306a\u95a2\u6570\u3092\u4f5c\u3063\u305f ((lambda (x) (average x (* x x))) 10) ((\u2026","provider_name":"Hatena Blog","image_url":null,"url":"https://boxnos.hatenablog.com/entry/20070716/1184526574","type":"rich"}