{"url":"https://silver-dragon.hatenablog.com/entry/20120629/1340989759","categories":[],"provider_url":"https://hatena.blog","width":"100%","type":"rich","version":"1.0","published":"2012-06-29 02:09:19","title":"\u5358\u53cc\u66f2\u56de\u8ee2\u9762","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsilver-dragon.hatenablog.com%2Fentry%2F20120629%2F1340989759\" title=\"\u5358\u53cc\u66f2\u56de\u8ee2\u9762 - \u6dbc\u98a8\u6211\u8ac7\u306e\u9c57\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://silver-dragon.hatenablog.com/","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/s/silver_dragon/20120630/20120630020806.png","author_url":"https://blog.hatena.ne.jp/silver_dragon/","blog_title":"\u6dbc\u98a8\u6211\u8ac7\u306e\u9c57","provider_name":"Hatena Blog","height":"190","author_name":"silver_dragon","description":"\u5358\u53cc\u66f2\u56de\u8ee2\u9762 \u5f0f\uff09 S(u,v)=( x(u) cos v, x(u) sin v, z(u) ) ( -1\u2266u\uff1c1, -\u03c0\u2266v\uff1c\u03c0) x(u)=a cosh u, z(u)=b sinh u ( a=1 , b=1 )"}