{"author_name":"dai-ig","author_url":"https://blog.hatena.ne.jp/dai-ig/","width":"100%","published":"2020-02-15 15:21:57","url":"https://a4.hateblo.jp/entry/2020/02/15/152157","type":"rich","blog_url":"https://a4.hateblo.jp/","description":"\u6982\u8981 \u6b21\u30bc\u30fc\u30bf\u95a2\u6570\u306e\u53ce\u675f\u5224\u5b9a\u3092\u884c\u3044\u305f\u3044\u3002\u3053\u308c\u307e\u3067\u306b\u306f\u7121\u9650\u5927\u306b\u767a\u6563\u3057\u3001\u306f2\u3088\u308a\u3082\u5c0f\u3055\u3044\u6570\u306b\u53ce\u675f\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u304d\u305f\u3002 \u304c\u5b9f\u969b\u3044\u304f\u3064\u306b\u53ce\u675f\u3059\u308b\u306e\u304b\u3092\u6c42\u3081\u308b\u3002\u4ee5\u4e0b\u306b\u3092\u66f8\u304d\u4e0b\u3057\u3066\u304a\u304f\u3002 \\begin{eqnarray} \\zeta(2)&=&\\sum_{k=1}^{\\infty}\\frac{1}{k^2}\\ &=&\\frac{1}{1^2}+\\frac{1}{2^2}+\\frac{1}{3^2}+\\cdots \\end{eqnarray} \u5c0e\u51fa \u306e\u30de\u30af\u30ed\u30fc\u30ea\u30f3\u5c55\u958b\u3092\u66f8\u304d\u4e0b\u3059\u3002 \\begin{eqnarray} \\sin x&=&x-\\frac{1}{3!}x^3+\\frac{1}{5!}x^5-\\fr\u2026","version":"1.0","height":"190","provider_name":"Hatena Blog","image_url":"https://chart.apis.google.com/chart?cht=tx&chl=s","categories":[],"title":"\u30d0\u30fc\u30bc\u30eb\u554f\u984c","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fa4.hateblo.jp%2Fentry%2F2020%2F02%2F15%2F152157\" title=\"\u30d0\u30fc\u30bc\u30eb\u554f\u984c - 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>","blog_title":"A4\u306e\u5b87\u5b99"}