{"blog_title":"Marginalia","categories":["Ruby"],"description":"marginalia.hatenablog.com marginalia.hatenablog.com\u7d9a\u304d\u3067\u3059\u3002 \u5f15\u304d\u7d9a\u304d \u300c\u30b3\u30de\u5927\u6570\u5b66\u79d1\u300d\u306b\u6311\u3080 \u3053\u306e\u30b5\u30a4\u30c8\u304b\u3089\u554f\u984c\u3092\u62dd\u501f\u3044\u305f\u3057\u307e\u3059\uff08\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01\uff09 \u6cd5\u653f\u306b\u6311\u6226\uff082009/12/8\uff09 \u554f\u984c\uff1a \u884c\u5217 \u3092\uff15\uff10\u500b\u304b\u3051\u5408\u308f\u305b\u305f\u3068\u304d\u3001\u3067\u304d\u308b\u884c\u5217\u3092\u6c42\u3081\u3066\u304f\u3060\u3055\u3044\u3002 http://www.geocities.jp/tfujisaki2006/sugaku/komadai0912.html#koma2 \u30b3\u30fc\u30c9\u3002 require 'matrix' p Matrix[[1, 0.5], [0, 1]] ** 50 #=>Matrix[[1.0, 25.0\u2026","height":"190","published":"2018-11-16 17:16:29","url":"https://marginalia.hatenablog.com/entry/2018/11/16/171629","width":"100%","version":"1.0","provider_name":"Hatena Blog","type":"rich","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmarginalia.hatenablog.com%2Fentry%2F2018%2F11%2F16%2F171629\" title=\"\u300c\u30b3\u30de\u5927\u6570\u5b66\u79d1\u300d\u3092 Ruby \u3067\uff083\uff09 - Marginalia\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"obelisk2","author_url":"https://blog.hatena.ne.jp/obelisk2/","title":"\u300c\u30b3\u30de\u5927\u6570\u5b66\u79d1\u300d\u3092 Ruby \u3067\uff083\uff09","blog_url":"https://marginalia.hatenablog.com/","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/o/obelisk2/20181116/20181116200419.gif"}