{"provider_name":"Hatena Blog","height":"190","type":"rich","width":"100%","published":"2020-07-10 01:54:14","author_url":"https://blog.hatena.ne.jp/fortran66/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffortran66.hatenablog.com%2Fentry%2F2020%2F07%2F10%2F015414\" title=\"\u3010\u30e1\u30e2\u5e33\u3011\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u4e0a\u306e\u755c\u751f\u306a\u6570 - fortran66\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u3010\u30e1\u30e2\u5e33\u3011\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u4e0a\u306e\u755c\u751f\u306a\u6570","url":"https://fortran66.hatenablog.com/entry/2020/07/10/015414","blog_url":"https://fortran66.hatenablog.com/","image_url":null,"author_name":"fortran66","description":"NaN \u306a\u3069 \u6a19\u6e96\u7684\u306a\u5b9f\u6570\u306e\u516c\u7406\u7cfb\u3067\u306f 0 / 0 \u3068\u304b\u306f\u672a\u5b9a\u7fa9\u3060\u304c\u3001IEEE754 \u3067 NaN \u3092\u6570\u76f4\u7dda\u4e0a\u306e\u9806\u5e8f\u96c6\u5408\u3068\u306f\u72ec\u7acb\u3057\u305f\u5143\u3068\u3057\u3066\u4ed8\u3051\u52a0\u3048\u3066\u3001\u4e00\u7a2e\u306e non standard analysis \u7684\u306a\u62e1\u5927\u3057\u305f\u7cfb\u306b\u6f14\u7b97\u898f\u5247\u3092\u5c0e\u5165\u3057\u3066\u3044\u308b\u306e\u3067\u3001NaN \u304c\u7d61\u3080\u3068\u6392\u4e2d\u5f8b\u3082\u6210\u308a\u7acb\u305f\u306a\u3044\u3057 x==x \u304c\u507d\u3067 x/=x \u304c\u771f\u3068\u306a\u3063\u305f\u308a\u3057\u3066\u3044\u308b\u3002 \u3064\u3044\u3067\u306b\u7121\u9650\u5c0f\u3082\u52a0\u3048\u308c\u3070\u3044\u3044\u6c17\u3082\u3059\u308b\u3002 \u6574\u6570\u306e\u65b9\u306f\u7b26\u53f7\u306a\u3057\u3067\u8003\u3048\u308c\u3070 mod 232,64 \u306e\u5270\u4f59\u6f14\u7b97\u3067\u7406\u89e3\u3067\u304d\u308b\u304c\u3001\uff12\u306e\u88dc\u6570\u8868\u73fe\u3067\u8ca0\u306e\u6570\u3092\u8003\u3048\u308b\u3068 0 \u4ee5\u5916\u306b\u3082 -x == x \u3068\u306a\u308b\u3088\u3046\u306a\u6570\u304c\u51fa\u3066\u3057\u307e\u3046\u3002 use, intrinsic :: iso_for\u2026","version":"1.0","provider_url":"https://hatena.blog","blog_title":"fortran66\u306e\u30d6\u30ed\u30b0","categories":[]}