{"image_url":null,"version":"1.0","author_name":"mirichi","categories":["DXRuby"],"url":"https://mirichi.hatenadiary.org/entry/20160110/p1","provider_url":"https://hatena.blog","width":"100%","title":"\u7269\u7406\u30a8\u30f3\u30b8\u30f3\u3092\u4f5c\u308b3","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmirichi.hatenadiary.org%2Fentry%2F20160110%2Fp1\" title=\"\u7269\u7406\u30a8\u30f3\u30b8\u30f3\u3092\u4f5c\u308b3 - mirichi\u306e\u65e5\u8a18\" 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","provider_name":"Hatena Blog","blog_title":"mirichi\u306e\u65e5\u8a18","blog_url":"https://mirichi.hatenadiary.org/","type":"rich","published":"2016-01-10 00:00:00","description":"\u53cd\u767a\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u307f\u3088\u3046\u3002\u524d\u56de\u306e\u30b3\u30fc\u30c9\u3067\u306f\u885d\u7a81\u3057\u305f\u5834\u5408\u306b\u4f5c\u7528\u6cd5\u7dda\u65b9\u5411\u306e\u901f\u5ea6\u30920\u306b\u3059\u308b\u3060\u3051\u3060\u3063\u305f\u306e\u3067\u30d4\u30bf\u3063\u3068\u6b62\u307e\u3063\u3066\u3044\u305f\u304c\u3001\u53cd\u767a\u3055\u305b\u308b\u3068\u5f3e\u3080\u3088\u3046\u306a\u52d5\u304d\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u885d\u7a81\u5f8c\u306b\u56de\u8ee2\u3055\u305b\u305f\u308a\u3059\u308b\u306e\u3082\u3001\u5186\u3068\u56db\u89d2\u304c\u885d\u7a81\u3057\u305f\u5834\u5408\u306b\u81ea\u7136\u306b\u53cd\u5fdc\u3059\u308b\u306e\u3082\u3001\u5168\u3066\u3053\u306e\u8a08\u7b97\u304c\u30d9\u30fc\u30b9\u306b\u306a\u308b\u3002 ComplexVector \u6a5f\u80fd\u8ffd\u52a0\u3092\u3059\u308b\u3002\u30e1\u30bd\u30c3\u30c93\u3064\u3002 module ComplexVector refine Complex do def cross(c) self.real * c.imag - self.imag * c.real end def prep Complex(-self.imag, self.real\u2026","author_url":"https://blog.hatena.ne.jp/mirichi/"}