{"author_url":"https://blog.hatena.ne.jp/shaitan/","blog_url":"https://shaitan.hatenablog.com/","categories":["\u7bb1\u5ead\u6570\u5b66"],"version":"1.0","author_name":"shaitan","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshaitan.hatenablog.com%2Fentry%2F2026%2F06%2F19%2F211105\" title=\"2013\u5e74\u5948\u826f\u770c\u7acb\u533b\u79d1\u5927\u5b66\u524d\u671f\u533b\u5b66\u79d1\u554f\u984c4 - shaitan&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","title":"2013\u5e74\u5948\u826f\u770c\u7acb\u533b\u79d1\u5927\u5b66\u524d\u671f\u533b\u5b66\u79d1\u554f\u984c4","url":"https://shaitan.hatenablog.com/entry/2026/06/19/211105","blog_title":"shaitan's blog","published":"2026-06-19 21:11:05","image_url":null,"description":"2013 \u5948\u826f\u770c\u7acb\u533b\u79d1\u5927\u5b66 \u524d\u671f\u533b\u5b66\u79d1\u70b9P (2cos\u03b8, sin\u03b8) \u3068\u304a\u304f\u3068\u3001\u63a5\u7dda\u306e\u5f0f\u306f \u3067\u3042\u308b\u304b\u3089\u3001A , B \u3068\u306a\u308b\u3002\u3057\u305f\u304c\u3063\u3066\u3001 \u306a\u306e\u3067\u3001 \u3068\u304a\u304f\u3068\u3001 \u3067\u3042\u308b\u3002\u7b49\u53f7\u6210\u7acb\u306f \u3064\u307e\u308a \u306e\u3068\u304d\u3002\u3053\u308c\u3092\u6e80\u305f\u3059\u03b8\u306b\u5bfe\u3057P\u306f\u7b2c\u4e00\u8c61\u9650\u306b\u3042\u308b\u306e\u3067\u3001\u6c42\u3081\u308b\u6700\u5c0f\u5024\u306f3\u3067\u3042\u308b\u3002 \uff08A, B\u306e\u5ea7\u6a19\u3092\u03b8\u3067\u8868\u3059\u3068\u3053\u308d\u307e\u3067\u540c\u69d8\uff09 \u76f8\u52a0\u5e73\u5747\u3068\u8abf\u548c\u5e73\u5747\u306e\u95a2\u4fc2\u3088\u308a \uff08\u4ee5\u4e0b\u540c\u69d8\uff09\u5ea7\u6a19\u8ef8\u3067\u5207\u308a\u53d6\u3089\u308c\u308b\u7dda\u5206\u306e\u9577\u3055\u304c\u4e00\u5b9a\u306e\u56f3\u5f62\uff08\u30a2\u30b9\u30c6\u30ed\u30a4\u30c9\uff09\u3092\u4f7f\u3063\u3066\u3046\u307e\u3044\u3053\u3068\u89e3\u3051\u306a\u3044\u304b\u8003\u3048\u3066\u305f\u3051\u3069\u601d\u3044\u3064\u304b\u306a\u304b\u3063\u305f\u3002 \u4e8c\u756a\u76ee\u306e\u89e3\u3067\u76f8\u52a0\u5e73\u5747\u3068\u8abf\u548c\u5e73\u5747\u306e\u95a2\u4fc2\u3092\u4f7f\u3063\u3066\u3044\u308b\u3002\u3053\u306e\u95a2\u4fc2\u306f\u69d8\u3005\u306a\u4e0d\u7b49\u5f0f\u304b\u3089\u793a\u3059\u3053\u3068\u304c\u3067\u304d\uff082001\u5e74\u4e5d\u5927\u5f8c\u671f\u7406\u7cfb\u554f\u984c2 - s\u2026","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","type":"rich","height":"190"}