{"published":"2020-03-24 10:24:37","description":"\u534a\u5f84 $r$ \u306e\u5186\u306e\u5f0f\u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002\u30d1\u30e9\u30e1\u30c8\u30ea\u30c3\u30af\u8868\u73fe\u306f\u3053\u3046\u3067\u3059\u3002 \\left(\\begin{array}{c}x(t) \\\\ y(t) \\end{array}\\right) = r\\left(\\begin{array}{c} \\cos(t) \\\\ \\sin(t) \\end{array}\\right) \u5bfe\u3057\u3066\u3001\u9670\u95a2\u6570\u8868\u73fe\u306f\u3053\u3046\u3067\u3059\u3002 f(x, y) = \\sqrt{x^2 + y^2} - r = 0 \u5927\u4f53\u5206\u304b\u308a\u307e\u3057\u305f\u306d\uff1f \u5927\u4e08\u592b\u3067\u3059\u3001\u79c1\u3082\u5927\u4f53\u3057\u304b\u5206\u304b\u3063\u3066\u3044\u307e\u305b\u3093\u3002 \u95a2\u6570 $f(x, y)$ \u306b\u6ce8\u76ee\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306f\u300c\u539f\u70b9\u3092\u4e2d\u5fc3\u3068\u3057\u534a\u5f84 $r$ \u306e\u5186\u304b\u3089\u306e\u7b26\u53f7\u4ed8\u304d\u8ddd\u96e2\u300d\u3092\u8868\u3059\u95a2\u6570\u3067\u3059\u3002\u2026","author_name":"caddi-tech","provider_url":"https://hatena.blog","url":"https://caddi.tech/archives/959","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/c/caddi-tech/20240208/20240208130849.png","width":"100%","blog_url":"https://caddi.tech/","blog_title":"CADDi Tech Blog","version":"1.0","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcaddi.tech%2Farchives%2F959\" title=\"\u9670\u95a2\u6570\u306b\u3088\u308b\u5f62\u72b6\u8868\u73fe (1) - CADDi Tech Blog\" 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","author_url":"https://blog.hatena.ne.jp/caddi-tech/","provider_name":"Hatena Blog","title":"\u9670\u95a2\u6570\u306b\u3088\u308b\u5f62\u72b6\u8868\u73fe (1)","categories":["Algorithm","\u88fd\u9020\u696d\u30c9\u30e1\u30a4\u30f3"]}