{"blog_title":"Perl\u5165\u9580\u30bc\u30df","url":"https://perlcodesample.hatenadiary.jp/entry/20080920/1221927324","title":"log\u95a2\u6570 - \u5bfe\u6570\u3092\u6c42\u3081\u308b","author_name":"perlcodesample","published":"2008-09-20 01:15:24","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fperlcodesample.hatenadiary.jp%2Fentry%2F20080920%2F1221927324\" title=\"log\u95a2\u6570 - \u5bfe\u6570\u3092\u6c42\u3081\u308b - Perl\u5165\u9580\u30bc\u30df\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","categories":[],"version":"1.0","image_url":null,"provider_name":"Hatena Blog","blog_url":"https://perlcodesample.hatenadiary.jp/","description":"Perl \u203a \u95a2\u6570 \u203a here log\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u81ea\u7136\u5bfe\u6570\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u5e95(\u3066\u3044)\u306e\u5909\u63db\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u4efb\u610f\u306e\u5e95\u306e\u5bfe\u6570\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002 \u81ea\u7136\u5bfe\u6570\u3092\u6c42\u3081\u308b \u81ea\u7136\u5bfe\u6570\u3092\u6c42\u3081\u308b\u306b\u306flog\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u81ea\u7136\u5bfe\u6570\u3068\u306f\u5e95\u304c\u30cd\u30a4\u30d4\u30a2\u6570e\u3067\u3042\u308b\u5bfe\u6570\u306e\u3053\u3068\u3067\u3059\u3002 log(10); \u5e38\u7528\u5bfe\u6570\u3092\u6c42\u3081\u308b \u5e38\u7528\u5bfe\u6570\u3068\u306f\u3001\u5e95\u304c10\u306e\u5bfe\u6570\u306e\u3053\u3068\u3067\u3059\u3002\u5e95\u306e\u5909\u63db\u516c\u5f0f\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u4efb\u610f\u306e\u5e95\u306e\u5bfe\u6570\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 sub log10 { my $x = shift; return log($x) / log(10); } \u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0 log\u95a2\u6570\u3092\u4f7f\u3063\u3066\u3001\u5bfe\u6570\u3092\u6c42\u3081\u308b\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002 use s\u2026","author_url":"https://blog.hatena.ne.jp/perlcodesample/","width":"100%","provider_url":"https://hatena.blog","type":"rich"}