{"type":"rich","published":"2023-03-21 10:59:38","provider_name":"Hatena Blog","blog_url":"https://www.mtioutput.com/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.mtioutput.com%2Fentry%2Flinux-bc-scale\" title=\"\u3010Linux\u3011\u4efb\u610f\u306e\u6570\u5024\u306e\u5c0f\u6570\u70b9\u4ee5\u4e0b\u306e\u6841\u6570\u3092\u524a\u9664\u3059\u308b - (O+P)ut\" 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":"mtiit","title":"\u3010Linux\u3011\u4efb\u610f\u306e\u6570\u5024\u306e\u5c0f\u6570\u70b9\u4ee5\u4e0b\u306e\u6841\u6570\u3092\u524a\u9664\u3059\u308b","blog_title":"(O+P)ut","author_url":"https://blog.hatena.ne.jp/mtiit/","height":"190","version":"1.0","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/m/mtiit/20190708/20190708105146.png","categories":["UNIX","UNIX-Linux"],"provider_url":"https://hatena.blog","url":"https://www.mtioutput.com/entry/linux-bc-scale","description":"\u3084\u308a\u305f\u3044\u3053\u3068 1.2345\u306e\u3088\u3046\u306a\u6570\u5024\u5217\u304c\u3042\u308b\u969b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5207\u308a\u51fa\u3057\u65b9\u3092\u884c\u3046\u3002 1.2 1.23 1.234 \u74b0\u5883\u60c5\u5831 $ bc --version bc 1.06.95 \u3084\u308a\u65b9 \u6570\u5024\u5217\u306b\u5bfe\u3057\u30661\u3067\u306e\u9664\u7b97\u3092\u884c\u3046\u3002 $ echo \"scale=1;1.2345/1\" | bcscale\u3067\u6307\u5b9a\u3059\u308b\u6570\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u5c0f\u6570\u70b9\u4ee5\u4e0b\u306e\u6841\u6570\u3092\u6307\u5b9a\u3067\u304d\u308b\u3002 $ echo \"scale=2;1.2345/1\" | bc 1.23 $ echo \"scale=3;1.2345/1\" | bc 1.234\u4ee5\u4e0b\u3001\u88dc\u8db3\u3067\u3059\u3002 \u88dc\u8db3 \u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6570\u5024\u3092\u305d\u306e\u307e\u307e\u5165\u308c\u308b\u3060\u3051\u3067\u306f\u5c0f\u6570\u70b9\u51e6\u7406\u306f\u3055\u308c\u306a\u3044\u305f\u3081 $ echo \"s\u2026"}