{"author_name":"pashango_p","author_url":"https://blog.hatena.ne.jp/pashango_p/","blog_url":"https://pashango-p.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpashango-p.hatenadiary.org%2Fentry%2F20090714%2F1247590272\" title=\"\u9ad8\u901f\u6570\u5024\u8a08\u7b97\u30e9\u30a4\u30d6\u30e9\u30ea\u300cNumpy\u300d\u899a\u66f8\u304d - Pashango\u2019s Blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://pashango-p.hatenadiary.org/entry/20090714/1247590272","categories":[],"width":"100%","provider_url":"https://hatena.blog","image_url":null,"blog_title":"Pashango\u2019s Blog","height":"190","title":"\u9ad8\u901f\u6570\u5024\u8a08\u7b97\u30e9\u30a4\u30d6\u30e9\u30ea\u300cNumpy\u300d\u899a\u66f8\u304d","version":"1.0","type":"rich","description":"Python\u3067\u4e00\u756a\u6709\u540d\u3067\u666e\u53ca\u3057\u3066\u3044\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u8a00\u3063\u3066\u3082\u904e\u8a00\u3067\u306f\u306a\u3044\u300cNumpy\u300d\u306e\u899a\u66f8\u304d\u3067\u3059\u3002\u304b\u306a\u308a\u591a\u6a5f\u80fd\u306a\u6570\u5024\u8a08\u7b97\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3001\u5185\u90e8\u306fC\u8a00\u8a9e\u3067\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u8d85\u9ad8\u901f\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002 \u30d9\u30af\u30c8\u30eb \u30d9\u30af\u30c8\u30eb\u306e\u9577\u3055\uff06\u6b63\u898f\u5316 import numpy a = numpy.array([[2,2]]) #\u30d9\u30af\u30c8\u30eb\u306e\u9577\u3055 length = numpy.linalg.norm(a) #length=>2.8284271247461903 #\u30d9\u30af\u30c8\u30eb\u306e\u6b63\u898f\u5316 a / numpy.linalg.norm(a) #=>array([[ 0.70710678, 0.70710678]]) \u5185\u7a4d\uff06\u5916\u7a4d import\u2026","provider_name":"Hatena Blog","published":"2009-07-14 01:51:12"}