{"type":"rich","categories":["PE","\u6570\u5b66","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20100202%2Fp2\" title=\"Project Euler 57 - inamori\u2019s diary\" 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","width":"100%","description":"Problem 57 2\u306e\u5e73\u65b9\u6839\u306f\u7121\u9650\u9023\u5206\u6570\u3067\u8868\u305b\u308b\u3002 \u221a2 = 1 + 1/(2 + 1/(2 + 1/(2 + ...))) = 1.414213... \u3053\u308c\u3092\u6700\u521d\u306e4\u56de\u306e\u5c55\u958b\u3059\u308b\u3068\u3001 1 + 1/2 = 3/2 = 1.5 1 + 1/(2 + 1/2) = 7/5 = 1.4 1 + 1/(2 + 1/(2 + 1/2)) = 17/12 = 1.41666... 1 + 1/(2 + 1/(2 + 1/(2 + 1/2))) = 41/29 = 1.41379... \u6b21\u306e3\u3064\u306e\u5c55\u958b\u306f\u300199/70,239/169,577/408\u3068\u306a\u308b\u3002\u3057\u304b\u3057\u3001\u7b2c8\u5c55\u958b\u306f1393/985\u3067\u3001\u5206\u5b50\u306e\u6841\u6570\u304c\u2026","image_url":null,"blog_title":"inamori\u2019s diary","version":"1.0","author_url":"https://blog.hatena.ne.jp/inamori/","provider_url":"https://hatena.blog","blog_url":"https://inamori.hateblo.jp/","url":"https://inamori.hateblo.jp/entry/20100202/p2","author_name":"inamori","title":"Project Euler 57","published":"2010-02-02 00:00:00"}