{"author_name":"winebarrel","categories":["SICP"],"description":"\u50d5\u306e\u89e3\u7b54 \u3053\u3093\u306a\u611f\u3058\u304b\u306a\u2026 (define (improve guess x) (/ (+ (/ x (* guess guess)) (* 2 guess)) 3)) (define (good-enough? x guess) (< (abs (- (* guess guess guess) x)) 0.001)) (define (cubic-iter guess x) (if (good-enough? x guess) guess (cubic-iter (improve guess x) x))) (define (cubic x) (cubic-iter 1.0 x)) (dis\u2026","url":"https://so-wh.at/entry/20070317/p6","type":"rich","blog_url":"https://so-wh.at/","width":"100%","published":"2007-03-17 00:00:01","blog_title":"so what","provider_name":"Hatena Blog","image_url":null,"title":" \u554f\u984c1.8","version":"1.0","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/winebarrel/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fso-wh.at%2Fentry%2F20070317%2Fp6\" title=\" \u554f\u984c1.8 - so what\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}