{"provider_name":"Hatena Blog","type":"rich","height":"190","blog_url":"https://nigimitama.hatenablog.jp/","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/n/nigimitama/20181130/20181130131008.png","author_url":"https://blog.hatena.ne.jp/nigimitama/","url":"https://nigimitama.hatenablog.jp/entry/2018/11/30/131543","version":"1.0","provider_url":"https://hatena.blog","title":"R\u306eround()\u306f\u56db\u6368\u4e94\u5165\u3092\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044","blog_title":"\u76c6\u6697\u306e\u5b66\u7fd2\u8a18\u9332","width":"100%","categories":["R","\u8a08\u7b97\u6a5f\u79d1\u5b66"],"published":"2018-11-30 13:15:43","author_name":"nigimitama","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnigimitama.hatenablog.jp%2Fentry%2F2018%2F11%2F30%2F131543\" title=\"R\u306eround()\u306f\u56db\u6368\u4e94\u5165\u3092\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044 - \u76c6\u6697\u306e\u5b66\u7fd2\u8a18\u9332\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"round\u95a2\u6570\u306e\u610f\u5473\u3092\u8aa4\u89e3\u3057\u305f\u307e\u307e\u4f7f\u3063\u3066\u3044\u3066\u9762\u5012\u306a\u3053\u3068\u306b\u306a\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002 round()\u306f\u56db\u6368\u4e94\u5165\u3092\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044 \u5076\u6570\u3078\u306e\u6700\u8fd1\u63a5\u4e38\u3081 \u8a00\u3044\u63db\u3048\u308b\u3068 round()\u306f\u53b3\u5bc6\u306b\u5076\u6570\u4e38\u3081\u3092\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044 \u5076\u6570\u4e38\u3081\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304b\u3089\u4e88\u60f3\u3055\u308c\u308b\u7d50\u679c\u3068\u6570\u5024\u8a08\u7b97\u306e\u7d50\u679c\u3068\u306e\u8aa4\u5dee representation error\u306b\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b \u53c2\u8003 round()\u306f\u56db\u6368\u4e94\u5165\u3092\u3059\u308b\u308f\u3051\u3067\u306f\u306a\u3044 \u5076\u6570\u3078\u306e\u6700\u8fd1\u63a5\u4e38\u3081 round()\u306ehelp\u3092\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\uff0cDetails\u306e\u90e8\u5206\u306b Note that for rounding off a 5, the IEC 60559 standard (see also \u2018I\u2026"}