{"author_name":"dai-ig","blog_title":"A4\u306e\u5b87\u5b99","provider_url":"https://hatena.blog","height":"190","provider_name":"Hatena Blog","title":"\u4e09\u9805\u6f38\u5316\u5f0f \u7279\u6027\u65b9\u7a0b\u5f0f\u306e\u89e3\u304c\u8907\u7d20\u6570\u306e\u5834\u5408","type":"rich","categories":["\u6570\u5b66","\u6570\u5217"],"image_url":"https://chart.apis.google.com/chart?cht=tx&chl=a_n","author_url":"https://blog.hatena.ne.jp/dai-ig/","published":"2018-11-04 18:10:34","blog_url":"https://a4.hateblo.jp/","version":"1.0","description":"\u4f8b\u984c \u4ee5\u4e0b\u306e\u6f38\u5316\u5f0f\u3092\u7279\u6027\u65b9\u7a0b\u5f0f\u3092\u7528\u3044\u3066\u89e3\u304d\u3001\u3092\u9589\u3058\u305f\u5f0f\u3067\u8868\u3059\u3002 \\begin{eqnarray}a_{n+2}&=&2a_{n+1}-2a_n\\\\a_0&=&3\\\\a_1&=&5\\end{eqnarray}\u7279\u6027\u65b9\u7a0b\u5f0f\u306f\u4ee5\u4e0b\u306e\u5f62\u306b\u306a\u308b\u3002 \\begin{eqnarray}x^2-2x+2=0\\end{eqnarray} 2\u6b21\u95a2\u6570\u306e\u89e3\u306e\u516c\u5f0f\u3092\u7528\u3044\u3066\u7279\u6027\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\u3002 \\begin{eqnarray}x&=&\\frac{2\\pm\\sqrt{4-8}}{2}\\\\&=&\\frac{2\\pm\\sqrt{-4}}{2}\\\\&=&1 \\pm i\\end{eqnarray} \u7279\u6027\u65b9\u7a0b\u5f0f\u306e2\u3064\u306e\u89e3\u3092\u7528\u3044\u3066\u3001\u6f38\u5316\u5f0f\u3092\u2026","url":"https://a4.hateblo.jp/entry/2018/11/04/181034","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa4.hateblo.jp%2Fentry%2F2018%2F11%2F04%2F181034\" title=\"\u4e09\u9805\u6f38\u5316\u5f0f \u7279\u6027\u65b9\u7a0b\u5f0f\u306e\u89e3\u304c\u8907\u7d20\u6570\u306e\u5834\u5408 - A4\u306e\u5b87\u5b99\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}