{"type":"rich","author_name":"fujidig","description":"\u300e\u4ee3\u6570\u306e\u8003\u3048\u65b9\u300f (\u6885\u7530 \u4ea8)\u306b\u672a\u8a3c\u660e\u3067\u8f09\u3063\u3066\u3044\u305f\u4e8b\u5b9f\u3092\u8a3c\u660e\u3057\u3066\u307f\u3088\u3046\u3068\u3057\u305f\u3068\u3053\u308d,\u306a\u304b\u306a\u304b\u624b\u3053\u305a\u3063\u305f. \u5185\u7a4d\u3068\u76f4\u4ea4\u88dc\u7a7a\u9593\u3092\u4f7f\u3063\u3066\u8a3c\u660e\u3057\u305f\u304c\u3001\u5185\u7a4d\u3092\u4f7f\u308f\u305a\u306b\u8a3c\u660e\u3067\u304d\u308b\u306e\u3060\u308d\u3046\u304b\uff1f $A$\u3092$(m,n)$\u578b\u8907\u7d20\u884c\u5217\u3068\u3059\u308b. \u3053\u306e\u3068\u304d, \\( \\qquad\\begin{align} 1\u6b21\u65b9\u7a0b\u5f0f\u7cfb A{\\bf x} = {\\bf b} \u304c\u89e3\u3092\u6301\u3064 &\\Leftrightarrow {\\bf b} \\in \\rm{Im} A \\\\ &\\Leftrightarrow \\{\\{{\\bf b}\\}\\} \\subset \\rm{Im} A \\\\ &\\Leftrightarrow (\\rm{Im} A)^\\pe\u2026","title":"Ax = b\u304c\u89e3\u3092\u6301\u3064\u3088\u3046\u306ab","author_url":"https://blog.hatena.ne.jp/fujidig/","provider_name":"Hatena Blog","url":"https://fujidig.hatenablog.com/entry/2014/04/30/135631","width":"100%","provider_url":"https://hatena.blog","height":"190","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffujidig.hatenablog.com%2Fentry%2F2014%2F04%2F30%2F135631\" title=\"Ax = b\u304c\u89e3\u3092\u6301\u3064\u3088\u3046\u306ab - \u7406\u79d1\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u7406\u79d1","image_url":"http://cdn-ak.f.st-hatena.com/images/fotolife/f/fujidig/20150818/20150818232416.jpg","blog_url":"https://fujidig.hatenablog.com/","published":"2014-04-30 13:56:31","categories":[]}