{"published":"2015-05-24 00:00:00","type":"rich","url":"https://hanecci.hatenadiary.org/entry/20150524/p1","author_url":"https://blog.hatena.ne.jp/hanecci/","blog_url":"https://hanecci.hatenadiary.org/","title":" Japanese memo of \"directional derivative written by iq\"","image_url":null,"description":"\u53c2\u7167 (Reference) \"directional derivative\" by iq http://www.iquilezles.org/www/articles/derivative/derivative.htm \u6982\u8981 iq \u3055\u3093\u306b\u3088\u308b\u300c\u65b9\u5411\u5fae\u5206\u3092\u5229\u7528\u3057\u3066, \u96f2\u306e\u3088\u3046\u306a\u30dc\u30ea\u30e5\u30fc\u30e0\u306e\u30e9\u30f3\u30d0\u30fc\u30c8\u30b7\u30a7\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u9ad8\u901f\u5316\u300d\u3059\u308b\u8a18\u4e8b\u306e\u7c21\u6613\u30e1\u30e2\u3067\u3059.","categories":[],"author_name":"hanecci","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhanecci.hatenadiary.org%2Fentry%2F20150524%2Fp1\" title=\" Japanese memo of &quot;directional derivative written by iq&quot; - OLD hanecci\u2019s blog : \u65e7 \u306f\u306d\u3063\u3061\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>","provider_url":"https://hatena.blog","version":"1.0","height":"190","blog_title":"OLD hanecci\u2019s blog : \u65e7 \u306f\u306d\u3063\u3061\u30d6\u30ed\u30b0","width":"100%"}