{"blog_url":"https://quabbin.hatenadiary.org/","type":"rich","categories":["Ruby"],"blog_title":"quabbin\u306e\u65e5\u8a18(\u5206\u5bb6)","description":"Ruby \u3082 NaN == NaN \u304c true \u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u2026\u3075\u3068\u6c17\u306b\u306a\u3063\u3066\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002 1.4\u301c1.9\u7cfbRuby\u3067\u306e\u52d5\u304d NaN\u306fFloat\u306e\u6f14\u7b97\u3067\u7b97\u51fa\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002 \u3064\u307e\u308a\u3001 0.0/0 \u304cNaN\u306b\u306a\u308b\u306f\u305a\u306a\u306e\u3067\u3001 p 0.0/0 == 0.0/0 \u304ctrue\u306b\u306a\u308b\u304bfalse\u306b\u306a\u308b\u304b\u3092\u89b3\u5bdf\u3059\u308b\u65b9\u5411\u3067\u30c1\u30a7\u30c3\u30af\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002\u305d\u3053\u3067\u624b\u5143\u306b\u3042\u3063\u305fActiveScriptRuby\u306e1.4\u301c1.8\u3067\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307f\u307e\u3059\u3002 C:\\Users\\quabbin>\\Develop\\Language\\Ruby-1.4\\ruby.exe -ve 'p 0.0/0 == 0.0/0' ruby 1.\u2026","author_url":"https://blog.hatena.ne.jp/quabbin/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fquabbin.hatenadiary.org%2Fentry%2F20090705%2F1246814989\" title=\" NaN\u306e\u52d5\u304d - quabbin\u306e\u65e5\u8a18(\u5206\u5bb6)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","provider_url":"https://hatena.blog","title":" NaN\u306e\u52d5\u304d","url":"https://quabbin.hatenadiary.org/entry/20090705/1246814989","image_url":null,"height":"190","provider_name":"Hatena Blog","width":"100%","author_name":"quabbin","published":"2009-07-05 02:29:49"}