{"image_url":null,"published":"2007-11-21 00:00:00","provider_name":"Hatena Blog","url":"https://reinyannyan.hatenadiary.org/entry/20071121/p1","title":" \u7121\u9650\u6570\u5217\u3001\u7121\u9650\u7d1a\u6570\u3001\u5186\u5468\u7387","blog_title":"(new Hatena).blog()","width":"100%","version":"1.0","author_name":"reinyannyan","description":"SICP \u30cd\u30bf\u3067\u3059\u3002SICP \uff13\u7ae0\u306e\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u7bc0\u306b\u3001\u30e9\u30a4\u30d7\u30cb\u30c3\u30c4\u7d1a\u6570\u3068\u3044\u3046\u3082\u306e\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002 pi/4 = 1 - 1/3 + 1/5 - 1/7 + ...\u3068\u3044\u3046\u5f0f\u3067\u3059\u3002\u9805\u6bce\u306b\u7b26\u53f7\u304c\u5165\u308c\u66ff\u308f\u308b\u5947\u6570\u306e\u9006\u6570\u306e\u7121\u9650\u5217\u3001\u305d\u306e\u7dcf\u548c\u304c\u3001\u30d1\u30a4\u306e\uff14\u5206\u306e\uff11\u306b\u53ce\u675f\u3059\u308b\u3001\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u4e00\u898b\u7406\u89e3\u3057\u304c\u305f\u3044\u8a71\u3067\u3059\u304c\u3001\u3053\u306e\u3053\u3068\u306e\u7406\u8ad6\u7684\u80cc\u666f\u306b\u3064\u3044\u3066\u306f Wikipedia \u306e\u89e3\u8aac\u3092\u53c2\u7167\u3057\u3066\u3044\u305f\u3060\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u7406\u8ad6\u306f\u3055\u3066\u7f6e\u304d\u3001\u672c\u3092\u8aad\u3093\u3067\u3044\u3066\u300c\u306a\u3093\u304b\u7c21\u5358\u306b JavaScript \u3067\u3082\u51fa\u6765\u305d\u3046\u300d\u3068\u601d\u3063\u305f\u306e\u3067\u3001\u3084\u3063\u3066\u307f\u307e\u3057\u305f (\u672c\u6587\u6700\u5f8c\u306b\u30c7\u30e2\u30da\u30fc\u30b8\u3078\u306e\u30ea\u30f3\u30af\u304c\u3042\u308a\u307e\u3059)\u3002\u4ee5\u4e0b\u3001\u30b3\u30fc\u30c9\u306f\u5168\u3066 Scheme \u304b\u3089\u306e\u7ffb\u8a33\u3067\u3059\u2026","blog_url":"https://reinyannyan.hatenadiary.org/","categories":["JavaScript"],"height":"190","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/reinyannyan/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Freinyannyan.hatenadiary.org%2Fentry%2F20071121%2Fp1\" title=\" \u7121\u9650\u6570\u5217\u3001\u7121\u9650\u7d1a\u6570\u3001\u5186\u5468\u7387 - (new Hatena).blog()\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich"}