{"published":"2016-05-09 09:32:18","title":"\u56db\u5143\u6570\u306e\u6f14\u7b97","height":"190","provider_name":"Hatena Blog","image_url":null,"url":"https://mikuhatsune.hatenadiary.com/entry/20160509/1462753938","version":"1.0","description":"\u56db\u5143\u6570\u306e\u5185\u7a4d\u304c\u6b32\u3057\u304b\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002 \u56db\u5143\u6570\u306f2\u3064\u306e\u865a\u6570\u5358\u4f4d, , (), \u30684\u3064\u306e\u5b9f\u6570, , , \u3092\u7528\u3044\u3066 \u3068\u66f8\u3051\u308b\u3002\u3053\u308c\u3092\u5b9f\u6570\u90e8\u5206(\u30b9\u30ab\u30e9\u30fc\u90e8)\u3068\u865a\u90e8(\u30d9\u30af\u30c8\u30eb\u90e8)\u306b\u5206\u3051\u3066 \u3068\u3082\u66f8\u304f\u3002 \u3044\u307e\u3001\u3075\u305f\u3064\u306e\u56db\u5143\u6570, \u306b\u3064\u3044\u3066\u3001\u7a4d\u306f \u3068\u306a\u308b\u3002 \u8a08\u7b97\u3057\u3066\u78ba\u304b\u3081\u308b\u3002\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\u3082\u8a08\u7b97\u3057\u3066\u307f\u308b\u3002 set.seed(1234) xyz <- matrix(runif(6), 3) q12 <- as.quaternion(rbind(0, xyz)) # xyz \u3067\u306e\u5185\u7a4d xyz[,1] %*% xyz[,2] # \u56db\u5143\u6570\u3067\u306e\u5185\u7a4d prod(Re(q12)) - Re(q12[1] * q12[2]) # \u2026","blog_url":"https://mikuhatsune.hatenadiary.com/","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmikuhatsune.hatenadiary.com%2Fentry%2F20160509%2F1462753938\" title=\"\u56db\u5143\u6570\u306e\u6f14\u7b97 - \u9a5a\u7570\u306e\u30a2\u30cb\u30f2\u30bf\u793e\u4f1a\u5fa9\u5e30\u306e\u4e88\u5099\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/MikuHatsune/","author_name":"MikuHatsune","blog_title":"\u9a5a\u7570\u306e\u30a2\u30cb\u30f2\u30bf\u793e\u4f1a\u5fa9\u5e30\u306e\u4e88\u5099","provider_url":"https://hatena.blog","type":"rich","categories":["R","cpp","Rpackage","\u5f62\u30fb\u52d5\u304d","\u6570\u5b66"]}