{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhyperion64.hatenadiary.org%2Fentry%2F20110919%2F1316433847\" title=\"\u76f4\u7dda\u4e0a\u3092\u8ee2\u304c\u308b\u6955\u5186\uff1a\u30c0\u30b5\u30a4\u30af\u30ed\u30a4\u30c9 - \u5b8c\u5168\u7121\u6b20\u3067\u8352\u5510\u7121\u7a3d\u306a\u5922\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2011-09-19 21:04:07","categories":[],"height":"190","title":"\u76f4\u7dda\u4e0a\u3092\u8ee2\u304c\u308b\u6955\u5186\uff1a\u30c0\u30b5\u30a4\u30af\u30ed\u30a4\u30c9","description":"\u5186\u3092\uff58\u8ef8\u4e0a\u3067\u56de\u8ee2\u3055\u305b\u308b\u3068\u5186\u5468\u4e0a\u306e\u4e00\u70b9\u306e\u63cf\u304f\u66f2\u7dda\u306f\u30b5\u30a4\u30af\u30ed\u30a4\u30c9\u3067\u3042\u308b\u3002\u3067\u3042\u308b\u306a\u3089\u3070\u3001\u6955\u5186\u3092\u8ee2\u304c\u3057\u3066\u51fa\u6765\u308b\u306e\u304c\u30c0\u30b5\u30a4\u30af\u30ed\u30a4\u30c9\u3067\u3042\u308b\u3002 \u30c0\u30b5\u30a4\u30af\u30ed\u30a4\u30c9\u306f\u7f6e\u3044\u3066\u304a\u3044\u3066\u3001\u6955\u5186\u3092\u8ee2\u304c\u3059\u3068\u3069\u3046\u306a\u308b\u304b\u3092\u56f3\u5f62\u7684\u3082\u3057\u304f\u306f\u89e3\u6790\u5e7e\u4f55\u5b66\u7684\u306b\u8a66\u7b97\u3057\u3066\u307f\u3088\u3046\u3002 \u8003\u3048\u65b9\u306f\u3053\u3046\u3067\u3042\u308a\u307e\u3059\u3002\uff11\uff09\u6955\u5186\u3067\uff58\u8ef8\u306e\u5207\u7247\uff41=1\u3001\uff59\u8ef8\u3092\uff42=a(1-e^2)^(1/2)\u3068\u3059\u308b\u3002e\u306f\u504f\u5fc3\u7387\u3067\u3042\u308a\u307e\u3059\u3002 \u3053\u3046\u3057\u3066\u3082\u4e00\u822c\u6027\u306f\u4fdd\u305f\u308c\u307e\u3059\u3002th\u306f\u539f\u70b9\u304b\u3089\u306e\u4ef0\u89d2\u3067\u3059\u3002 \u6955\u5186\u4e0a\u306e\u70b9(a Cos(th),b Sin(th))=(Cos(th),(1-e^2)^(1/2) Sin(th))\u3092\u8003\u3048\u308b\u3002\uff12\uff09\u305d\u306e\u63a5\u7dda\u306e\u5f0f\u306f\u9ad8\u6821\u6570\u5b66\u3067\u3082\u7fd2\u3046\u3088\u3046\u306b\u6b21\u5f0f\u3068\u306a\u308a\u307e\u3059\u3002 x \u2026","url":"https://hyperion64.hatenadiary.org/entry/20110919/1316433847","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/H/Hyperion64/20110919/20110919204715.gif","type":"rich","author_name":"Hyperion64","provider_url":"https://hatena.blog","width":"100%","provider_name":"Hatena Blog","blog_url":"https://hyperion64.hatenadiary.org/","blog_title":"\u5b8c\u5168\u7121\u6b20\u3067\u8352\u5510\u7121\u7a3d\u306a\u5922","author_url":"https://blog.hatena.ne.jp/Hyperion64/","version":"1.0"}